AP2820 offers faster speeds, better coverage, and enhanced security compared to previous Wi-Fi generations. The access point is designed to handle the unique challenges of outdoor environments, such as stadiums, parks, and other public spaces.
High Speed Wi-Fi
One of the main advantages of AP2820 Outdoor Wi-Fi 6 Access Point is the ability to offer faster speeds and better coverage. This is achieved through the use of advanced technologies such as Orthogonal Frequency-Division Multiple Access (OFDMA) and Multi-User Multiple Input, Multiple Output (MU-MIMO). OFDMA allows for more efficient use of spectrum, enabling more devices to connect to the network simultaneously. MU-MIMO allows the access point to communicate with multiple devices at the same time, which helps to increase overall network capacity.
High performance and efficiency
The AP2820 Outdoor Wi-Fi 6 Access Point is designed to handle more devices and higher traffic density, making it ideal for outdoor environments like stadiums, parks, and public spaces. Its advanced features, such as beamforming and transmit beam steering to optimize signal strength and improve coverage. It also comes equipped with powerful processors and memory, allowing it to handle large amounts of data and keep up with the demands of high-density environments.
Network capacity improvement
With OFDMA, SR (Spatial Reuse), and DL/UL MU-MIMO technology, the AP2820 (802.11ax) improves system capacity when compared with 802.11ac. In addition, AP2820 supports TWT technology.
This allows the AP to schedule the wake-up and sleep activities of WiFi devices in a unified manner, reducing conflicts and unnecessary wake-ups between devices in order to meet the high density concurrent access requirements in congested areas.
The AP2800 Outdoor Wi-Fi 6 Access Point comes with built-in security features to protect against common threats such as hacking, spoofing, and man-in-the-middle attacks. It uses advanced encryption algorithms to secure data transmission, and it also comes with built-in firewalls to prevent unauthorized access to the network. Additionally, AP2820 offers cloud-based management and analytics capabilities, which allow for easy remote monitoring, troubleshooting, and configuration.
Flexible, easy to install: Designed to be easy to install and configure, which makes it easy to deploy these access points in a variety of outdoor environments, without having to worry about finding a power source. The access point is also designed to be weather-resistant and durable, making them ideal for use in harsh outdoor conditions.
Cloud-based control, insights and analytics: It offers cloud-based management and analytics capabilities, which allow for easy remote monitoring, troubleshooting, and configuration. which makes it easy to manage a large number of access points from a central location, and it also allows for real-time monitoring and troubleshooting of the network. Additionally, the analytics capabilities provide useful insights into network usage, which can help organizations to optimize their wireless networks for maximum performance and efficiency.
In conclusion, AP2820 Outdoor Wi-Fi 6 Access Point is a powerful and versatile solution for organizations that need to provide wireless coverage in outdoor environments. These access points offer faster speeds, better coverage, enhanced security, and flexible, easy-to-install design. Additionally, its cloud-based management and analytics capabilities make it easy to monitor, troubleshoot, and optimize the network, providing organizations with the insights they need to improve their wireless networks.
In the future, a lot of things in smart cities will happen automatically: the application of the clinic, based on the data from the fitness bracelet, will sign up for a medical examination, and the city services will clean the trash can according to the data from the sensors. Artificial intelligence will identify people with weapons in the crowd, and the fire brigade will go to the place before the call of eyewitnesses – on a signal from video cameras.
Wi-Fi is an integral part of the digital infrastructure that is being deployed in major cities around the world. Most often, its development is hampered by a lack of Wi-Fi investment and the unpreparedness of cities for technological changes.
If these obstacles are overcome, the state and business will be able to interact more effectively with residents and change the urban environment to suit their needs. Studies shows that free Wi-Fi can change life in the city, infrastructure management and give new opportunities to private and public companies.
Tourists and startups choose Wi-Fi
The rise of Wi-Fi could turn cities into technology hubs, with fast public internet attracting young entrepreneurs. For example, in Lithuania, according to Ooma, the fastest public Wi-Fi in the world – it is to him that the mayor of Vilnius assigns a big role in turning the city into a startup hub in Eastern Europe. Wi-Fi also affects tourist activity. The quality of public Wi-Fi is one of the main factors in tourist satisfaction . For these reasons, in Taiwan, two years after the launch of free Wi-Fi for citizens, free access to the public network was also given to guests of the island.
Some countries use free Wi-Fi as one of the gentrification tools. Together with other measures – the emergence of public spaces, subsidies for small businesses – this helps to increase the attractiveness of residential areas.
Now city authorities and businesses that make money on advertising in networks are investing in this. But in the future, operators of “home” Wi-Fi may join the creation of public networks. For example, Comcast, Fon, and Liberty Global are running projects in which city residents provide a small portion of home Wi-Fi power to city networks, and users switch between these points as they move between homes.
Wi-Fi controls road traffic and utilities
Wi-Fi allows you to plan urban infrastructure based on anonymized aggregated data. Like many Internet resources, the network can predictively determine the approximate age of the user, gender and interests. And if there are many young people with children in the area, for example, the authorities can plan the construction of new kindergartens.
One of the main areas Wi-Fi is transforming is transportation. Networked video cameras, touch sensors, smart fare terminals and other gadgets help analyze traffic in public transport and suggest new interchanges, adjust the number of buses, reschedule stops, etc.
In UAE, Wi-Fi is available almost everywhere. It is he who is used by city services to manage the life of the city. To control traffic on the roads, there is an intelligent transportation system that relies not only on a network of gadgets installed on the roads, but also on sensors, cameras and GPS devices that are in a taxi.
Moreover, the system makes it possible to adapt the urban environment for people with disabilities – for example, it automatically identifies them at crossings and increases the green light time.
In UAE, public Wi-Fi is available almost everywhere. Even trash cans give it away. Wi-Fi also powers other services that enable cities to collect big data, reduce costs, and improve service efficiency—smart parking and smart lighting, smart video surveillance, and automatic water and power supplies.
For example, in Dubai Downtown, smart lighting systems are powered by city Wi-Fi, a key element of the city’s carbon neutral strategy to reduce carbon dioxide emissions.
Even as hospitals around the world are cutting back on non-COVID-19 patients, Wi-Fi is helping patients with other ailments take advantage of telemedicine.
Giving away free internet on the hospital grounds will aloow visitors to consult a doctor without leaving their car. Those who do not have a phone or computer with them can be given a tablet in the parking lots with installed software for communicating with doctors.
Florence has reduced traffic congestion with its “ Smart Traffic Management ” program by adding a few hundred more devices to its existing network of cameras and Bluetooth sensors. They are interconnected and transmit information via Wi-Fi to the local traffic police and administration. Based on the data, these authorities manage traffic lights and parking lots in the city.
Wi-Fi will attract customers who pass by
Not only city services get the opportunity to change their work. For offline businesses, especially local ones, Wi-Fi is a new way to communicate with potential buyers. Businesses such as a hairdresser, a repair shop, a coffee shop cannot yet transfer their services online, but it becomes easier to get to know the consumer virtually.
This is possible with the help of smart phone MAC address identification technology. The business engages with an audience that has recently been around through Wi-Fi ads when they connect and through social media or SMS. The owner can target ads to potential visitors to a particular establishment instead of buying huge coverage of an unnecessary audience.
In addition, both private and public companies can use Wi-Fi to personalize the user experience. This possibility seems too futuristic for now, but it is quite feasible in the near future.
Users will be able to customize their preference profiles in the services of Wi-Fi operators. Then, for example, when entering a train compartment, lighting, temperature, types of entertainment content and other parameters will automatically adjust to the user.
Anonymized data will allow you to offer users the necessary services. Thus, urban information content will be issued depending on the profile of the resident.
Wi-Fi serves as a backbone for cellular networks
There are more and more cases in the world when Wi-Fi becomes the basis for the services of cellular operators. Global telecommunications companies have long considered Wi-Fi as a partner in building infrastructure for smart cities. Public Internet access is an opportunity to reduce the load on cellular network.
In order to digitize the cities, it is necessary to deal with economic feasibility – it is costly to build such infrastructure in non-millionaires. Not so long ago, Google closed Stations, a project to develop free Wi-Fi around the world. It failed to monetize. This task can be solved if the state becomes more active in attracting private business in exchange for future income from the commercial use of digital infrastructure.
In addition, city authorities do not always have time to adapt to technological changes and find experienced personnel to process data and ensure the operation of new systems. Cooperation with businesses will help reduce the shortage of qualified personnel. New programs should also influence the development of infrastructure.
One of the options for implementation is the refusal of mobile operators to pay for access to such resources. Another option that will help develop the infrastructure for smart cities is urban Wi-Fi, using which you do not have to pay for access not only to socially significant, but also to any resources.
These are not insurmountable obstacles, but the next tasks that it is beneficial for the state and business to solve in order to provide the metropolis with ubiquitous Internet access. Only with the help of developed infrastructure will it be possible to spread the digital ecosystem throughout the country and provide citizens with access to personalized services.
DNS, DHCP, IPAM – together they form what we often refer to as DDI. They all work together to manage, assign, and resolve IP addresses and form an important part of any network. we explain below what each of these components are, what they are used for, and why you need them.
Today we start our journey by discussing IP addresses, what they are and why we use them. We will then introduce the DHCP system, how it works and what are its various components. After that, we will discuss the interaction between DNS and DHCP and why it is so important. And we’ll end this article by explaining what DDI is and why it’s so important. And after we’ve finished learning all the basics, we’ll move on to reviewing the multiple versions of EZELINK DDI/IPAM solutions for various industries.
IP addresses are at the very center of the Internet. They uniquely identify each device connected to the network. There is an important distinction to be made between public IP addresses and private IP addresses. The former are those used on devices connected to the public internet. For example, a web server often has a public IP address. The Internet router installed by your ISP in your home also has a public IP address. On the other hand, private IP addresses are the ones we use in home and corporate networks. They must also be unique, but only within a particular network.
Back in the prehistory of the Internet, when the IP protocol was defined, each connected device was manually configured with a separate IP address. We called it static or fixed IP addressing. It was cumbersome but ok since the number of connected hosts was low. As networks (both public and private) grew, it became increasingly difficult to manually configure IP addresses, as the process was error-prone and often resulted in duplicate IP addresses on the network. It took until the early 1990s before a durable solution was introduced in the form of DHCP.
The Dynamic Host Configuration Protocol – or DHCP as we commonly call it – was invented to dynamically assign IP addresses and allow connected hosts to connect. DHCP eliminates the need to manually configure IP addresses. DHCP not only configures IP addresses, it can configure most of the connected host’s network settings, such as IP address, subnet mask, name servers, WIND server(s) in the Windows environment, and a few other settings. All parameters are dynamically configured each time the host is started on the network.
No matter what exact parameters are configured by DHCP, the host configuration process is always the same. This is a four step process called DORA which stands for Discovery, Request, Offer and Acknowledgment. Here’s what happens when the host starts.
During the discovery phase, the host sends a broadcast message – this is a message that will be received by any host connected to a network called DHCPDISCOVERY. The message must be transmitted because the host does not currently know the address of the DHCP server.
In the second step, the server responds with a DHCP offer. The offer contains all the host network interface configuration options. Now, this is where things get a little more complicated. Because there can be multiple DHCP servers on a network, a host can receive multiple offers. When this happens, the host will simply select one of the offers and move on to the next step. Which one to choose? He usually chooses the first offer he gets.
In the next step, the host sends a DHCP request. It turns on the offer it chooses and will instruct the server whose offer it decides to proceed with, telling other servers that sent offers they had rejected and that they can release the offered IP addresses.
In the final step, the server sends a DHCP acknowledgment to the host confirming that it has correctly reserved the proposed IP address for that host.
DHCP client component
The DHCP configuration information received by the client and used to configure the network interface is invalid forever. In fact, it is leased, not assigned, by the DHCP server. And that lease expires.
It is one of the most important tasks of a DHCP client to ensure that the interface configuration remains valid. It does this by periodically trying to renew the lease before it expires. The update process uses the same DORA sequence. The only difference is that during the discovery phase, the client requests the same IP address that it already has.
Another important function of the DHCP client is the release mechanism. Whenever the client no longer claims its IP address, as it can when it terminates, it will notify the DHCP server to release the IP address so that it can be reused by the server.
DHCP Server Component
As far as a DHCP server is concerned, its main job is to send configuration information to any host that requests it, and have it send unique options to each individual host. IP addresses can be assigned by a DHCP server in one of three ways: dynamic, automatic, or static.
Dynamic allocation assigns a new IP address to each IP address. Automatic allocation is similar, except that the server will keep track of what IP address was assigned to each host and will try to assign it the same address the next time it connects.
And finally, with manual allocation, the administrator must manually associate a specific host, identified by its MAC address, with a specific IP address. This is also called a DHCP reservation because it reserves a specific address for a specific host.
Interaction between DHCP and DNS
The Domain Name Service – or DNS – is used to map hostnames to IP addresses. In a private network using dynamic DHCP allocation, there is often some integration between DNS and DHCP. So DNS always knows the current IP address of each host.
This is why many DHCP servers also include a DNS server. This applies, for example, to the Microsoft DHCP server, which is fully integrated with the DNS server.
DDI (DNS, DHCP, IPAM)
DDI is an acronym for DHCP, DNS and IPAM or IP address management. While we have not yet discussed the latter. IPAM refers to any software used to manage IP addresses. Such systems can typically be used to manage both DHCP-assigned addresses and statically-assigned addresses that are manually configured on hosts.
With the tight integration that is required between the three, it is quite normal that many vendors have three products built into each other, or that they offer all three products separately.
EZELINK 5 versions of DDI/IPAM Systems
Every DDI Solution of EZELINK can be used with all 3 features of (DNS, DHCP, IPAM) or as an individual product model of (EZE-DNS, EZE-DHCP and EZE-IPAM) in a standalone and can be inetgrated with many popular DNS and DCHP servers, such as the ones we find on Windows and Linux.
EZELINK Platinum Network DDI
EZELINK Platinum DDI is one of the best in network management. The product conist of some of the best tools for helping administrators. It allows you to use built-in DHCP and DNS servers making it a complete DDI system, and the software can also communicate with DHCP and DNS server from Microsoft and Cisco so you don’t have to replace all your infrastructures.
The software allows you to use several distribution methods for IP addresses. For example, you can use reservations for servers and other equipment and dynamically allocated addresses for workstations. Everything is fully integrated into DNS. In addition, a configuration wizard is included to assist in configuring DHCP scopes.
EZELINK Platinum Network DDI uses user accounts with different access levels. You can grant only partial access to some junior administrators, or allow managers to view reports. There is also a good logging system that records all changes with a timestamp and the username of the operator who made the changes. This can help with compliance issues.
EZELINK Large Enterprise DDI
EZELINK Large Enterprise DDI is one of the industry leaders in this field. The address management is best suited for large corporations with a network management team. The IPAM system is actually a complete DDI system that includes DHCP and DNS. It can also communicate with DHCP and DNS servers from Microsoft.
It’s a is a dual stack system, which means it can work with both IPv4 and IPv6 at the same time. It’s really a great tool to use when moving from one to the other. From a security point of view, the system has workflows and approval schemes, as well as user accounts with hierarchical rights.
The system uses network templates. They allow the administrator to use information layouts that prevent important tasks from being overlooked and that all important data is present. In a nutshell, the EZELINK Large Enterprise IPAM system automates as many network administration tasks as possible. As a result, problems caused by human error are less common. It is a premium package so you can expect premium prices, but if you manage a large network it’s worth the investment. You can visit our DDI Solution page for more information.
EZELINK Centralized DDI
EZELINK Centralized DDI is ideal for management of the IP address space. It can handle both IPv4 and IPv6 addresses. The built-in IP manager software helps network administrators determine whether an IP address is currently available or not. The IP Address Manager tool periodically scans the subnets and updates the availability status of the IP addresses on each subnet.
Users can use the IP Address Manager tools to quickly and easily check if a particular IP address is reserved or available. The tool accepts multiple subnet inputs, which helps when scanning the entire network to get the status of all IP addresses.
Request for a free demo of the product, with limited to one subnet. It is enough to give the product a trial run. It might even be all you need if you run a smaller network. Visit the EZELINK website for more information.
EZELINK SME IPAM & DHCP
EZELINK SME IPAM & DHCP is better suited for small to medium networks. Like other SME systems, it has templates for automating routine tasks. It also comes with excellent standard reports. And if you don’t find existing templates or reports to your liking, you can customize them to your liking.
SME IPAM & DHCP allows managers to track key resource usage. It also has snooping features that help you manage your DHCP usage efficiently. Security-wise, this is great, as it also includes the ability to identify external addresses and isolate rogue devices. This is a pretty unique feature that you won’t find on other systems. It shows how EZELINK treats security like it does IPAM and has safeguards built into the system.
New nodes can be centrally integrated into the network through the DDI user interface, and per-node usage comparison is also simplified with efficient MAC address records as well as IP address tracking
EZELINK IP Manager
EZELINK IP Manager is a great DDI kit is an automated Internet-based IPv4/IPv6 address management software (IPAM). It has powerful network discovery features and offers search and filter functions for networks and host by resolving equivalent expressions in the Internet search engine. This allows you to find information that administrators often require easily and quickly.”
In concrete terms, it’s a great system, especially for small businesses that might not be able to afford large solutions like Centralized DDI and SME IPAM & DHCP. It includes all the features a network administrator could want with minimal price. And it also has some unique features like subnet calculator and IP address plan builder. This is definitely a package worth looking into.
EZELINK has a big range of multiple versions of DDI platform suited to every organization as per heir requirements and features. The above five are the ones we think will cover most of the industry business requirements for large and small networks. But if you feel you need a turnkey solution EZELINK R&D team can be a big help to deliver customized solution as per your requirements .
Help carriers upgrade their existing LTE networks , generate additional Trusted Wireless Access ( TWAG ) revenues and accelerate 5G deployments.
Gateway operates on the same 5G band (up to 6 GHz) that operators will use to upgrade their LTE networks , which will expand coverage for trusted wireless access and enhanced mobile broadband services.
The TWAG market is projected to grow by about 50% from 18.5 million to 27.5 million households by 2022. Operators are increasingly using TWAG technologies to grow their business and monetize new services. Wireless networks will play a critical role in supporting new broadband access services, with a 16% market share of TWAG by 2022.
The EZELINK TWAG solution will help operators gain significant value from this growing market segment. This solution is a hardware device that can be easily installed indoors and connected wirelessly to a mobile network.
The gateway provides gigabit speeds to home subscribers based on the 3GPP wireless New Radio (NR) standard. Using carrier aggregation, the gateway improves network performance and reliability by selecting the most reliable 4G and 5G signals.
This solution is easy to install in a plug-and-play manner and helps the subscriber with the help of a visual system to find the optimal installation point where maximum performance is achieved.
Compatibility with the EZELINK WiFi Solution provides seamless ultra-broadband connectivity anywhere in the enterprise. The EZELINK Trusted Gateway optimizes spectrum utilization and uses the industry’s highest antenna gain to double indoor coverage, triple downlink capacity, and five times uplink throughput. compared to traditional networks.
Over the past year, EZELINK has significantly expanded its family of ultra-wideband solutions to include TWAG solutions for the home, including 4G LTE solutions, PON wireless solutions for the license-free 60 GHz band, and today’s announced 4G and 5G indoor solutions. EZELINK is currently testing Gateways with a number of carriers, such as Zain, which recently deployed an EZELINK Gateway installed on premises to stream 4K video services over a live network to a select group of home subscribers.
The use of the EZELINK TWAG is an important part of our plans to launch commercial wireless services on fixed broadband networks. This could drastically change the performance of wireless broadband access in households across the country We can leverage our existing mobile resources to quickly deliver new ultra-broadband services to customers over radio channels. We are committed to continuously improving wireless services for the benefit of our customers and are therefore delighted to work with EZELINK to find new applications for this technology as we evolve our networks.
5G fixed wireless access systems allow operators to offer ultra-broadband services to home subscribers and corporate customers . But beyond that, well-designed solutions like the EZELINK TWAG allow the subscriber to install these devices themselves in their homes. As a result, the operator does not need to send his specialists to the field, and the load on the service department is significantly reduced, while customer satisfaction, on the contrary, increases. TWAG is becoming an important ultra-wideband tool for all carriers as demand for bandwidth increases and user expectations rise.
EZELINK is a leader in 5G fixed wireless access. Our solutions help the operator offer ultra-broadband services to its subscribers faster and expand its subscriber base. Our TWAG solution accelerates 5G network rollout and delivers the full benefits of 5G to home subscribers, dramatically improving the quality of home services.
EZELINK is the world leader in wireless networks and the only company in the industry to offer a comprehensive suite of solutions for wireless deployments. Used in more than 70 projects, our TWAG solutions, software tools and services enable customers to take advantage of the enormous potential of next-generation network technology.
Today wi-fi has become an integral part of any mass event. The bulk of the participants are business people who must constantly be in touch, have access to corporate resources and the Internet. Therefore, Wi-Fi should not only “shine”, but also “work”.
A large number of users (up to several thousand) are concentrated in a limited area. Often, such events have a main conference room, which brings together almost all participants (plus speakers, organizers) who need Internet access. You also need to organize Wi-Fi in other rooms with a lower density of users.
Connecting to the network should be simple. Those. to connect to a wireless network, the participant does not have to perform any settings on his mobile device (setting the type of authentication / encryption).
Festival WiFi Solution
Festival Wi-Fi Solution users should be divided into groups (participant, presenter, organizer). Each group has corresponding connection policies (speed limits, services, directions).
Wi-Fi users should be divided into groups (participant, presenter, organizer). Each group has corresponding connection policies (speed limits, services, directions).
The system should keep statistics about users: the total number of associated users, their distribution by AP, the average user traffic. It is also useful for a wireless network administrator to have the operation logs of the radio environment monitoring system (for the presence of “alien” APs and wireless attacks).
Outdoor WiFi Solutions
To meet the above requirements, as well as to fulfill the main task of event organizers (Wi-Fi must “work”), wireless installers must adhere to some recommendations. These rules are not a dogma and are not described in any international standards for organizing Outdoor Wi-Fi Solution networks at public events. Variations are also possible depending on the configuration of the premises (area, type of partitions: open space, light partitions, brick walls, etc.), the total number of participants, their distribution in the halls, requirements for access speed. Everything described below is based on the experience of installing such systems by the specialists of EZELINK.
A little about our experience. In all projects we use the inhouse manufactured equipment. Since 2004, we have been participating in the Wi-Fi installation at the annual events and exhibitions in Dubai. More than 20, 000 people gather at the conference and actively use Wi-Fi.
Dubai Outdoor Events
EZELINK also organized Wi-Fi at the Rugby7 (event WiFi Rental), Interpol, KISS, Dua Lipa events in Dubai. Let’s describe the basic principles of Wi-Fi network installation using the example of the Emirates Rugby Sevens Annual Sports event.
Before the start of the event, our specialists went to the site. According to the requirements of the organizers, the total number of simultaneous connections is 3,000. All users during the event were spreader over 3 sq km area including, retail outlets, recreation areas, commentary box, contractors, staff and guests. For normal operation of the AP (and the speed per client was slightly less than 3 Mbps), we believe that each AP radio should have no more than 35 simultaneously working clients. From the experience of past installations, it can be seen that about 30% of clients work at 5 GHz and 70% at 2.4 GHz, we get 210 g / n Wi-Fi clients and 90 a / n Wi-Fi clients.
Multiple SSIDs were organized for all participants: broadcasted in the 2.4 GHz band and 5 GHz band. Dedicated SSIDs were allocated for presenters, staff and hosts. The role (policy) was assigned to the client based on the results of his authentication.
When registering each Wi-Fi participant, he was given a PIN-code. The participant connected to the open SSID, then, when the Internet browser was opened, he was redirected to the registration WEB page, where he entered his PIN-code. For all PIN-codes in the system, users were created who were assigned the corresponding role. Thus, all participants connected to any of SSID (depending on the selected range) and received a role according to the requirements of the organizers.
Wi-Fi Access Points were located according to preliminary survey at a height of no more than 3 m above the floor. This was done to increase the coverage area of the AP (due to the radio signal conflict of mobile devices of the conference participants). Wi-Fi clients who were in the coverage area of one AP saw neighboring APs with a noticeably lower signal level (by 10-15 dB) and do not try to “jump” on them, which increases the speed of their work by reducing service traffic. In addition, local coverage areas allow channel reuse in the 2.4 GHz band.
Event WiFi Access Points
By placing the AP on the ceiling (high on the walls) and without limiting the radiation power, we got large coverage areas that was overlap. In the case when there was more than three APs operating at a frequency of 2.4 GHz in the room (as in our case, there were many of them in the stadiums), using the same frequency channels, we got a strong mutual influence and, as a result, an increase in bandwidth.
Since there were only three non-overlapping channels in the 2.4 GHz band, and in the stadium alone, 39 APs were used, the level of the radiated power of the APs in this range was manually underestimated. In a practical way, it was determined that the optimal level is 13 dBm (20%).
In the 5 GHz range, the number of non-overlapping channels were 12. 8 and allowed to be used indoors without obtaining frequency permission (channels 36 – 64). In our configuration, only two channels were reused, so the transmit power was left at 100%.
AP operating modes settings system has a Minimum Transmit Rate (MTR) parameter. On all APs, it was set to 24 Mbps. The 802.11 standard contains a procedure for switching a Wi-Fi client to a lower speed when receiving conditions deteriorate – Dynamic Rate Shifting (DRS). The client reduces the modulation rate, which decreases the operating speed, and increases the sensitivity threshold. In our case, this could have been lead to serious problems. Since each client makes the decision on roaming individually, many (mobile wifi for festivals )mobile devices would try with their last bit of strength to cling to the AP with which they were originally associated. In this case, the speed could drop to a minimum (1 Mbps) and there was a large number of retransmits.
Event WiFi Advantages
MTR does not allow the Wi-Fi clients to slow down below the specified speed. Therefore, it cannot reduce the modulation rate below a certain value, and accordingly increase the sensitivity threshold. MTR 24 Mbps limits modulation to 16 QAM. Due to this, clients will not “see” distant APs and try to associate with them, and when switching to another AP, they will make the decision about roaming faster.
We disabled 802.11b support for all APs operating in the 2.4 GHz band. Accordingly, only 802.11g / n clients were supported. This restricted our network from “slow” and “overly sensitive” clients that could create the problems described above.
Indoor/outdoor WiFi, serving up to 50,000 visitors every month
Branded captive portal to promote the brand, along with gathering user information
User login interval, maximum allowed logins, daily bandwidth quota and number of logins.
The key challenges during the project were outdoor installation on the facade to cover walkway outside the mall, work permits and strict timing as per the mall management guidelines. The project carried out during the high risk time of Coronavirus (COVID-19) to prevent the employee’s exposure and contamination of work environment high level of safety measures taken until the completion of the project.
Visitors per Month
Dubai Retail partnered with EZELINK for high capacity indoor/outdoor wireless coverage and branded user experience for their prime retail project of Bay Avenue, located in the convenient and popular district of Business Bay.
Dubai Marine Beach Resort & Spa is located in the heart of Dubai, at the beginning of Jumeirah beach road. The prime luxury beach resort offers, 34 state-of-the-art villas, a fitness centre, two floodlit tennis courts, private pools, exclusive spa and three onsite restaurants. The management recognizes that guest satisfaction lies meeting fast and reliable Wi-Fi service throughout the property indoor and outdoor areas.
Deliver blanket Wi-Fi coverage across the resort including 34 villas, fitness center, pools, spa, restaurants and outdoor areas.
Ensure high speed Wi-Fi access for guests who are authenticated by Hotel PMS.
Provided Wi-Fi access for guests who has not checked in for hotel room after filling basic contact details.
Carried fiber work to connect each villa, outlets and admin area directly with MDF.
IDFs creation to ensure the application of networking standards.
Deployment of Wi-Fi 6 access points for better outdoor wireless coverage for pools, beach and walkways.
With proper planning and coordination among multiple teams within the resort (MEP, FOH, IT..) the project was completed based on the schedule. The team followed highest standards of safety to make the containment so that the property is not damaged and yet the work was completed as per the design. Villa availability was well coordinated with the FOH and the IT team to ensure that we work in an isolated villa to avoid any disturbance to guests. Ceiling cutting and re-fixing was done inside the villas for running the CAT6 cables, the team used available opening to avoid any unnecessary drilling and nuisance.
The property being very old did not have standard ducts or containment to run the cables. The property was live with over 70% occupancy, which made it difficult to execute the project without disturbance to the guest. A lot of civil works and containment works was required for a fully operational property. Complex villa design and non-availability of the riser shafts was one of the toughest part for CAT6 cabling.
EZELINK reliable and high-quality Guest wifi solutions equipment with extensive research & development in wireless technologies delivering successful projects in every industry irrespective of their size and complexity. Our specialists have the appropriate education, knowledge and experience, so you can rely on us.
We are beginning to make requirements for the devices, Wifi6 wireless solutions be it a laptop, tablet computer or any other specialized equipment. That is why more and more often there is a need for modernization or implementation of wireless networks, which can exist in parallel or completely replace the wired network.
Current stage of development of wireless technologies allows using Outdoor wifi solutions and Wi-Fi networks to solve almost any problem of building an access network, be it an office, hotel, shopping center or cottage village. When considering the implementation of an external (street) Wi-Fi network project, it is worth paying attention to the fact that in the absence of a large demand for Wi-Fi at the moment, it is enough to introduce one or more access points instead of covering the entire facility with wireless coverage. And then, as requests come in, gradually expand your business. This method of developing a wireless network will reduce the likelihood of costs and the size of the initial investment.
Wi-Fi Solutions for Small Businesses
Small business solutions are simple, cost effective and fast to install. Wireless access in such solutions is provided for access to the internal network and the Internet. Support for voice and video communications, as well as streaming data, is significantly limited. Typically, the number of access points in these solutions does not exceed 4-5, with about 6-8 clients connected to each. Such configurations do not require the use of hardware controllers; all access points are configured separately. To manage the network, it is necessary to carry out identical manipulations with each point separately, which requires higher qualifications of IT personnel and reduces the functionality of the system as a whole.
Corporate WiFi Solutions
In installations of this level, hardware controllers of wireless Wi-Fi networks are always used. Solutions of this class assume the use of up to 3000 access points, and support the simultaneous operation of up to 30,000 client devices. When using specialized radio sensors and access points with the function of monitoring the radio broadcast, a system for determining the location of subscribers, sources of interference and intruders posing a threat to the security of the network can be implemented. At the same time, the system has the ability to self-repair: in the event of interference, a dynamic selection of the channel least affected by the interference occurs. Fail-over mechanisms are implemented. If an access point fails, its clients are intercepted by neighboring access points without losing the connection.
Hotels, Restaurants and Cafes WiFi
The specificity of Hotel wifi solution for hotels, restaurants involves the use of a wireless network for Internet access, e-mail, VoIP telephony and video communication. Such schemes do not require the implementation of client roaming functions without breaking the connection, since the main traffic flow comes from fixed points. A software controller can be used to configure and monitor access points. To ensure the security of guests’ data and to facilitate the configuration of client devices, WPA2 password-based encryption is used, since this excludes the possibility of eavesdropping on the air and intercepting confidential information. For the convenience of administration and sale of Internet access services via Wi-Fi, you can provide a Personal Account for each mobile subscriber.
In addition to commercial use, the trend of deploying Wi-Fi networks in educational institutions is gaining momentum. In schools and universities, wireless access from tablet PCs completely translates the entire educational process into an interactive environment, which significantly improves the quality and level of education. To attend lectures, it is not necessary to be physically in the classroom; the issue of access to information carriers is being resolved: paper manuals, libraries, timetables. Interaction between teacher and student becomes available anywhere in the world.
Using Cloud managed wifi solutions in medicine means instant access to the most up-to-date information from the Internet, any reference manuals, the ability to write prescriptions with one touch of the screen, storage and backup of all patient records on servers, etc.
Wireless Solutions For Telecom Operators
The main problem when deploying a cellular network is the limited bandwidth of each cell. All the speed available to the base station is divided between the subscribers. To increase the speed, operators are trying to reduce the number of subscribers, reducing the coverage area of each cell. This entails unreasonably high costs for increasing the number of expensive base stations to cover the same area. In this case, Wi-Fi is used. Cheap Wi-Fi hotspots provide Internet access exactly where you need it most. Subscribers’ voice calls are made through the existing GSM and 3G networks. There is no need to deploy additional 3G base stations. In another scenario, Wi-Fi is deployed in conjunction with short-range cells (pico and femto cells) in places with the highest subscriber density, to reduce the load on cellular base stations.
In addition, the vast majority of mobile devices are equipped with Wi-Fi, even entry-level tablets and e-readers that do not have any other wireless communications. All these devices can be connected via Wi-Fi to the operator’s networks, expanding the subscriber base and increasing the economic feasibility of deploying such networks. The same situation is observed in 4G networks (WiMAX / LTE). These technologies are often used as a backbone to deliver traffic to specific points. This traffic is then distributed locally over the Wi-Fi network. This process is called offload. At the same time, the subscriber of the cellular network continues to receive voice calls and SMS through the cellular network, and all Internet traffic goes through Wi-Fi. At the same time, Internet telephony and video conferencing services such as Skype and Lync remain available. Billing for Wi-Fi at local points can be organized in any available way: through payment terminals, paid SMS with temporary passwords, etc.
BYOD (Bring Your Own Device)
The BYOD concept is a security policy under which company employees are allowed to bring their own portable devices (laptops, tablets, communicators) to the workplace and use these devices to access the company’s privileged data and services. The term is also used to describe the same practice in educational institutions where students use personal devices for educational purposes. With this approach, all corporate security policies are implemented, the local network remains protected from possible threats. It is more convenient for staff and students to work from their personal devices, and this practice has become a general trend. Our task is to design and configure a Wi-Fi network in accordance with the modern needs of the Customer.
High Level of Security
Wi-Fi uses sophisticated encryption methods that cannot be bypassed or “broken” with modern computing power. Access is provided both by password and by a security certificate. Logging into a wireless Wi-Fi network is as secure as connecting to a corporate switch port.
Not every implementation requires further scalability (e.g. hotels, restaurants, cafes). But if you are faced with the task of building a scalable wireless network, then the main point is the choice of the manufacturer and the line of access points. Not all access points scale from a standalone access point to a cloud of lightweight access points managed by a Wi-Fi controller. In scalable wireless networks, the first step is to install and configure multiple access points. The development of the company and the increase in needs will not entail a complete replacement of equipment. It will only be necessary to update the software (firmware) on the existing access points and add wireless components.
WiFi Seamless Roaming
To implement voice (VoIP) or video communication, the corporate infrastructure uses fast roaming mechanisms (analogous to handover in cellular networks). The Wi-Fi wireless network controller transfers service to mobile subscribers as they move from one access point to another without delays or packet loss.
Automatic control and management of radio resources of the system. The WLAN controller performs dynamic redistribution of frequency channels and transmitter powers of access points according to specified algorithms. This reduces the level of interference created by neighboring points. Mechanisms of redundancy of access points are implemented – if one of the devices fails, the neighboring points increase the power and “intercept” clients, the service does not suffer.
Protection of radio air from interference and malicious clients. Standard Wi-Fi wireless LAN equipment is not capable of detecting interference from non-IEEE 802.11 devices. The task of monitoring the radio broadcast falls on access points with an additional spectrum analysis function, or specialized radio sensors that complement the infrastructure of a wireless Wi-Fi network. In some cases, this role is assumed by access points that are switched to analysis mode and do not serve clients. After detecting interference, the system rebuilds the channel plan of the access points. Moreover, so that channels adjacent to interference are assigned to access points that are as distant as possible from their sources. In addition, the system allows you to record attempts to “jam” the network and block malicious attempts to guess the access password.
Determining the location of devices. Dedicated services running on the Wi-Fi controller allow you to determine the location of emitters based on the signal strength received by multiple access points. These include both client gadgets and computers, and sources of interference (microwave ovens, cameras), malicious devices (“jammers”, access points – twins). The system determines their location and displays them on the floor plan. There are several options for the implementation of such systems, their accuracy is about 3-5 meters. Location data can be used to collect statistics, as well as to prohibit the use of mobile devices in certain areas on the building map, for example, meeting rooms or bathrooms.
Consistently high access speed. To ensure high speeds of access to the network, it is necessary to fulfill a number of factors, the main of which remains the competent design of the WLAN. The job of the surveyor or point placement engineer is to provide continuous coverage throughout the building. In this case, the system must be configured in such a way as not to accept connections from clients outside of a stable connection. In this case, the network will not be overloaded with re-sending packets, and all clients will be provided with a guaranteed connection speed, regardless of the load of each.
Increased user loyalty. In the service sector (hotels, hotels, hostels, restaurants, cafes, bars, business centers, shopping centers and malls, etc.), the provision of free Wi-Fi Internet access services significantly affects the client’s attitude to the service provider and increases “stardom”. For some potential customers, being able to access the internet is critical. In large malls, shoppers receive additional information and product reviews online and are more likely to shop. In addition, on the basis of free access to a wireless Wi-Fi network, an interactive product catalog can be implemented on the web portal platform, as well as a shopping cart, contextual advertising, an interactive shopping center scheme, and other services.
WiFi Web Authentication
Popular solution for hotels, airport terminals, shopping centers. Its essence is that a mobile subscriber connects to a Wi-Fi network without a password, opens an Internet browser and enters an arbitrary URL. The authorization system automatically redirects him to the authentication page, where he can enter a username and password. After successful input, the user gains access to the Internet. Web authentication systems are also popular in corporate wireless Wi-Fi networks, where data from Active Directory are used as login and password.
Guest portal for hot spots. Often in places with open access, before getting on the Internet, users go to the service provider’s page (restaurant, store, mobile operator, etc.). From where, after viewing the mandatory advertisements, the client is redirected to the Internet. This approach is similar to web authentication, but does not require a username / password pair. The portal is a web page on the basis of which any web services, statistics collection services, connection duration, etc. can be implemented. It should be noted that advertising covers the costs of clients’ Internet access, which, among other things, may be limited in speed / time / volume, etc.
WiFi Quality of Service (QoS)
The Quality of Service (QoS) mechanism classifies traffic by type and importance, sending high priority data packets first. Without this mechanism, it is impossible to simultaneously pass large amounts of simple data and voice communication (VoIP – Voiceover Internet Protocol) or video conferencing over the network. In the absence of this technology, the connection “croaks”, is interrupted, the image of the interlocutor is fragmented and covered with “squares”.
Designing and installing Wi-Fi wireless networks is a complex engineering task, in the solution of which specialists from several directions take part. In order for the network to meet all customer requirements and provide a reliable service, at all stages of implementation, the requirements for the placement of access points, antenna orientation, installation of SCS for powering access points via PoE and connections with switches are strictly met. Equipment tuning done by engineers who have knowledge of the technique and physics of radio wave propagation, as well as have experience with the equipment installation. Otherwise, you may be sold a large amount of equipment that individually meets all the requirements, but installed in such a way that it is a “pile” of expensive non-functioning “hardware”. Our specialists have the appropriate education, knowledge and experience, and are also certified for industry leading standards, so you can rely on us. This is evidenced by EZELINK, successful projects and the confirmed qualifications of our engineers.
Dynamic Host Configuration Protocol (DHCP) assigns IP addresses to devices on a network. It centralizes address ownership so that no single device on the network has a permanent address. DHCP is part of the TCP / IP suite of protocols and is considered an application layer protocol in the TCP / IP stack.
The protocol allows network Guest wifi solutions administrators to assign addresses to devices connected to the network. The address format that the system uses is an IP address, which is defined in the Internet Protocol – another part of the TCP / IP protocol suite.
DHCP is commonly used by ISPs to assign IP addresses to clients. This system allows ISPs to use the address pool more efficiently. Not all ISP clients are connected to the Internet at the same time, so home users are no longer assigned permanent addresses . Wifi6 wireless solutions Instead, each is assigned an address for the duration of the connection. Private Wi-Fi routers implement the same method for the networks in which they operate.
IP addresses must be unique within the network they access. Thus, on a private network, IP addresses do not have to be unique globally, only on that network. Outdoor wifi solutions IP addresses connected to the Internet cannot be duplicated anywhere on the Internet. DHCP deals with the allocation of IP addresses from a reserved pool.
What is DHCP?
The protocol establishes procedures for requesting and allocating IP addresses on a network. These definitions include a series of message types that the distribution process must include.
Like all other protocols supported by the IETF, DHCP is not a program. It is simply a set of standards that anyone who wants to create software for the DHCP address allocation function must follow. The importance of publicly available networking standards is that they Guest wifi solutions ensure the compatibility of networked programs no matter where in the world they were written.
A key element of the DHCP method is the procedure that the client initially uses to communicate with other devices on the network. As all computers on a network need a unique address to communicate , the question of how any computer can communicate to obtain an address is a mystery that DHCP solves.
The DHCP methodology is defined in a document that is publicly available and maintained by the Internet Engineering Group. The IETF presents the current protocol status on its website as RFC 3942. This document defines DHCP version 4. The original system definition is Wifi6 wireless solutions contained in two documents: RFC 2131 and RFC 2132 .. There is a collection of additional protocol definitions that complement the standard published in RFC 3942 . . For example, RFC 4242 explains how to adapt the protocol to use IPv6 addresses.
How DHCP works
There are two main elements of a DHCP system. They are DHCP server and DHCP client. A DHCP client is found on each of the devices you have connected to your network. Outdoor wifi solutions When this device is turned on, the DHCP client starts up as part of the operating system startup procedures.
The device does not have an IP address and therefore cannot send messages with a return address. Instead, the client includes its MAC address in the message. Wifi solution The MAC address is actually the identifier for this device’s network card. The MAC address of every network card in the world is unique.
The DHCP initialization process includes four types of messages:
This is how these four messages, collectively abbreviated as DORA , implement the DHCP process.
DHCP uses connectionless user data protocol for transmission. The request that the client sends is called the discovery message. The protocol calls this message type Hotel wifi solution DHCPDISCOVER. UDP is a connectionless system, so there is no initial session establishment phase.
This is the first Discovery message sent over the network by the client. This means that it has not been sent to a specific address. This is because the DHCP client does not know the DHCP server address at this point.
Although it should be possible for each client to configure the network DHCP server address recorded in the configuration, the assumption of not knowing the address makes it easier to configure and manage DHCP. If you do not need to manually specify the DHCP server address to the client when adding a device to the network, the discovery operation becomes a universal procedure. … Any device can have a DHCP client loaded onto it as part of its firmware, and it is automatically placed on Guest-wifi solutions whatever network it is added to.
The lack of a fixed destination address also means that you can move a DHCP server from one computer on the network to another without having to go to every device on the network and without resetting that server’s address.
There is one fixed parameter for communication between clients and DHCP servers: the port number. UDP port # 67 is reserved for DHCP servers and UDP port 68 is reserved for DHCP clients. Thus, the transmission of the Discovery message does not bind the processors of other devices on the network. This is because only the DHCP server procedures will listen on the network for messages addressed to port 67. All other devices on the network simply ignore the message, since it is not sent to port 68 ..
The response returned by the DHCP server is structured as Cloud managed wifi solutions DHCPOFFER. This message is sent over the network, so every computer on the system will receive it. This is UDP port 68, so the DHCP client on every network device will pick it up .
The intended recipient’s MAC address is contained in the message, so all other devices on the network will simply discard the message as soon as they see that it’s not for them.
The message contains the suggested IP address for the client. It also includes the duration, in seconds, that the device can use this address for. The allocation of IP addresses in DHCP is temporary and is called a “lease”. Duration is the lease time, or how long the client will keep this IP address.
Other information in the Offer message includes the subnet mask to be used for the network, DHCP server address, router address, and DNS server addresses on the network. With these addresses, the DHCP client can configure the network software on the device and fully integrate the hardware into the network.
You might think that allocating an address from a DHCP client by a DHCP server would be the end of the process. However, the situation is a little more complicated because the Protocol takes into account the possibility that multiple DHCP servers may be running on the same network. …
If there is more than one DHCP server on the network, the Discovery message that is sent to all devices on the network will be accepted by all DHCP servers. Each of them will send back an offer, so the client will receive multiple addresses. The client chooses one of these addresses, which is usually the first one it receives, and then sends back a request message confirming the use of that address.
At this point, the client has the IP address of the server that sent the selected offer message. However, the Request message is not addressed directly to this server. This is because all servers that send “Offer” messages need to receive a “Request” message containing the selected IP address.
The server that allocated the selected IP address receives a request message and records that the proposed address is currently in use. Other servers that submitted suggestions also receive this request message , find out that their addresses were not selected and leave those addresses available for the next Discovery message to be broadcast on the network. The protocol refers to the structure of the request message as DHCPREQUEST.
The final step in the DHCP initialization process is a DHCP acknowledgment message sent by the server that provided the selected IP address. This message is defined in the protocol as DHCPACK. None of the other DHCP servers on the network send this message back.
Curiously, even if the client claims to be using the offered IP address, the DHCPACK is not sent directly to that address, but is sent again to all devices on the network.
DHCP client functions
The DHCP client does not get an IP address all the time. The lease time of the allocation depends on the network policy, and different lease terms may be set for different types of equipment. If the lease expires, the DHCP client must apply to renew it.
The update process is exactly the same as the initial discovery process, except this time the client has an address where it can contact the server that allocated that address. So, instead of sending a Discover message, the client can contact the DHCP server directly . The client can request the same IP address, or the network policy can dictate that each update should be performed with a replacement IP address.
Two additional message types in the DHCP definition are intended for use by the client: the DHCPINFORM message and the DHCPRELEASE option.
The DHCPOFFER message consists of several option fields in the packet structure. However, the server rarely uses all of this and does not matter to any. A specific client program may need specific information to properly configure its device on the network. If this important information is missing from the DHCP offer message, it may send a Report message asking for details. If this information is available, it will be sent by the server in the form of another offer message with mandatory filling of the parameter fields. … An example of the use of DHCP Inform is that the browser often uses this message as a way to obtain Web proxy settings through automatic Web proxy detection routines.
On Windows Server 2003, DHCP servers use the Inform message type to detect rogue DHCP servers.
The release message is sent by the client to end the lease on the IP address before the specified period expires. This type of message is not essential in protocol operations because regular lease termination ahead of schedule usually occurs when the user turns off the device. There are no procedures to delay the shutdown process to allow the DHCP client to send a release message. In this case, the IP address remains allocated to this client until its lease expires, even if the device is not active during this period.
DHCP is only concerned with the allocation of available IP addresses. It does not support communication with network nodes. The IP address is assumed to be in use for the duration of its lease, and therefore it does not verify that the device to which the IP address is allocated is still active on the network . If the network configuration is changed, the DHCP manager does not make any efforts to redistribute addresses. These restrictions explain why DHCP is typically implemented as part of a suite of network addressing protocols called DDI, which is explained below ..
DHCP server functions
Dynamic Host Configuration Protocol includes three methods for allocating addresses to a server. These:
Here is more detailed information on each of these modes of operation.
This is the standard distribution method used by DHCP and follows the procedures outlined above. The server is configured with a range of IP addresses known as scope in DHCP terminology. This range may not be contiguous, so it is possible to declare exceptions within an address scope. Exceptions can also be defined as a range.
In this case, the server maintains a list of previous IP address assignments for the MAC addresses of devices on the network. When a new request comes from one of these addresses, the server will allocate the same address again. With automatic allocation, the address is assigned not only to the device, and therefore there may be cases when the previously used address has already been allocated elsewhere, and the server will send a different address to this device.
In this option, the DHCP server reserves an IP address so that it can only be assigned to a specific MAC address. This means that each device receives the same address every time it connects to the network. You can mix manual allocation with dynamic or automatic allocation. If the device’s MAC address is not on the reservation list, you must use one of two other methodologies to allocate the address. This system is also known as static allocation, static DHCP, fixed address allocation, address reservation, DHCP reservation, IP address reservation, and MAC / IP address binding.
Other DHCP Hosts
Large networks are often subnetted to prevent delays caused by too many devices trying to access the transmission medium. In these cases, the network can still only work with one DHCP server, but it requires a relay device on each subnet.
The packet structure of all types of DHCP messages includes a field called GIADDR that is populated by the relay. This is the relay’s own address, so when a message received by the relay from the client is forwarded to the DHCP server, the server knows where to send the response and what address range to use to allocate the address on that relay. subnet.
When the relay agent communicates with the DHCP server, both devices use UDP port 67.
DHCP security weaknesses
DHCP uses the User Datagram Protocol. It is a connectionless communication system, so it does not include encryption. Since almost all types of messages in the protocol are designed to be broadcast in every network mode, snoopers can gain a lot of control over network operations and create a devastating violation by simply gaining access to the network and listening to DHCP broadcasts.
This is why DHCP is rarely used in isolation. There are a number of coordination issues to consider when allocating IP addresses. … These addresses must also be referenced by the DNS server. There is a possibility that an attacker could inject a virtual spoofed DNS or DHCP server into the network. Network security and address validity are ensured by the IP address manager. It is a key element in the DDI suite of solutions.
DNS, DHCP, IPAM – together they form what we often call DDI. They all work together to manage, assign and resolve IP addresses and form an important part of any network.Read on as we explain what each of these components are, what they are used for, and why you need them.
Today we’ll start our journey by discussing IP addresses, what they are and why we use them Guest wifi solutions . Then we will introduce the DHCP system, how it works and what are its various components. After that, we will discuss the interaction between DNS and DHCP and why it is so important. And we’ll end this crash course by explaining what DDI is and why it’s so important Wifi6 wireless solutions.
IP addresses are at the very center of the Internet. They uniquely identify each device connected to the network. An important distinction needs to be made between public IP addresses and private IP addresses. The first are those used on devices connected to the public Internet. For example, a web server often has a public IP address. Outdoor wifi solutions The Internet router installed by your ISP in your home also has a public IP address. On the other hand, private IP addresses are the ones we use on home and corporate networks. They must also be unique, but only within a specific network.
Back in the history of the Internet, when the IP protocol was defined, each connected device was manually configured with a separate IP address. We called it static or fixed IP addressing. This was cumbersome but ok as the number of connected hosts was low. As networks (both public and private) grew, it became more difficult to manually configure IP addresses as the process was error prone and often resulted in duplicate IP addresses on the network. It took until the early 1990s before a durable solution was introduced in the form of DHCP. Wifi solution
The Dynamic Host Configuration Protocol – or DHCP as we commonly call it – was invented to dynamically assign IP addresses and provide connectivity to connected hosts.DHCP eliminates the need to manually configure IP addresses. Hotel wifi solution DHCP not only configures IP addresses, it can configure most of the network parameters of the connected host, such as IP address, subnet mask, name servers, WIND server (s) in Windows environment, and a few other parameters. All parameters are dynamically configured every time the host is started on the network. How it works
No matter what the exact parameters are configured by DHCP, the process for configuring a host is always the same. This is a four-step process called DORA, which stands for Discovery, Request, Offer, and Acknowledgment. Guest-wifi solutions This is what happens when the host starts.
During the discovery phase, the host sends out a broadcast message – this is a message that will be accepted by any host connected to the network called DHCPDISCOVERY. The message must be forwarded because the host does not know the DHCP server address at this time.
In the second step, the server responds with a DHCP offer. The offer contains all the configuration parameters for the host’s network interface. Now, this is where things get a little tricky. Since there can be multiple DHCP servers on the network, a host can receive multiple offers. When this happens, the host will simply pick one of the suggestions and move on to the next step. Which one should you choose? Usually he chooses the first offer he receives.
In the next step, the host sends a DHCP request. It includes the offer that he chooses and will instruct the server whose offer he chose to continue, informing other servers that sent offers that they had rejected and that they can release the offered IP addresses Cloud managed wifi solutions .
In the final step, the server sends a DHCP acknowledgment to the host, confirming that it has correctly reserved the proposed IP address for that host.
DHCP client component
DHCP configuration information obtained by the client and used to configure the network interface is not valid forever. In fact, it is leased rather than assigned by a DHCP server. And this lease is about to expire.
It is one of the most important tasks of the DHCP client to ensure that the interface configuration remains valid. It does this by periodically trying to renew the lease before it expires. The update process uses the same DORA sequence. The only difference is that during the discovery phase, the client requests the same IP address it already has.
Another important function of a DHCP client is the release mechanism. Whenever the client no longer requires its IP address, as it might when it terminates, it will notify the DHCP server to release the IP address so that it can be reused by the server.
DHCP Server Component
As far as a DHCP server is concerned, its main job is to send configuration information to any host that asks for it, and for it to send unique parameters to each individual host. IP addresses can be assigned by a DHCP server in one of three ways: dynamic, automatic, or static.
Dynamic allocation assigns a new IP address to each IP address. Automatic allocation is similar, except that the server will keep track of which IP address has been assigned to each host and will try to assign the same address to it the next time it connects.
Finally, with manual allocation, the administrator must manually associate a specific host identified by its MAC address with a specific IP address. This is also called DHCP reservation because it reserves a specific address for a specific host.
Interaction between DHCP and DNS
Domain Name Service – or DNS – is used to map host names to IP addresses. On a private network that uses DHCP dynamic allocation, there is often some integration between DNS and DHCP. This way, DNS always knows the current IP address of each host.
This is why many DHCP servers also include a DNS server. This applies, for example, to the Microsoft DHCP server, which is fully integrated with the DNS server.
The Comes DDI
DDI is an acronym for DHCP, DNS and IPAM, or IP Address Management. We haven’t discussed the latter yet. IPAM refers to any software used to manage IP addresses. Such systems can typically be used to manage both DHCP assigned addresses and statically assigned addresses that are manually configured on hosts.
With the tight integration that is required between the three, it is quite normal that many vendors have three products built on top of each other, or that they offer all three products separately.
In 2020, the world will spend $ 124 billion on the smart city industry. Citizens can already receive documents, make appointments with doctors and pay fines online.
In the future, a lot in smart cities will happen automatically: the application of the polyclinic based on the data from the fitness bracelet will register for a medical examination, and the city services will clear the trash can according to the data from the sensors. Artificial intelligence will identify people with weapons in the crowd, and the fire brigade will go to the scene before the call of eyewitnesses – on a signal from video cameras.
Wi-Fi is an integral part of the digital infrastructure that is being deployed in major cities around the world. Most often, its development is hampered by the lack of investment and the unpreparedness of cities for technological changes.
Tourists and startups choose Wi-Fi
The rise of Wi-Fi could turn cities into technology hubs – fast public internet is attracting young entrepreneurs. Wi-Fi also affects tourist activity. The quality of public Wi-Fi is one of the main factors in the satisfaction of tourists. For these reasons, in Taiwan, two years after the launch of free Wi-Fi for citizens, guests of the island were given free access to the public network.
Some countries use free Wi-Fi as one of the gentrification tools. Together with other measures – the creation of public spaces, subsidies for small businesses – this helps to increase the attractiveness of the sleeping areas.
Now the city authorities and businesses are investing in it, which makes money on advertising in the networks. But in the future, operators of “home” Wi-Fi may join the creation of public networks. Companies are implementing projects in which city residents provide a small portion of their home Wi-Fi power to urban networks, and users switch between these points, moving between houses.
By the way, US residents with free access to such points for 60 days to help people stay connected during the coronavirus pandemic.
Wi-Fi manages road traffic and utilities
Wi-Fi allows you to plan urban infrastructure based on anonymized aggregated data. Like many Internet resources, the network can predictably determine the user’s approximate age, gender, and interests. And if in the district, for example, there are many young people with children, the authorities can plan the construction of new kindergartens.
One of the main areas that Wi-Fi can transform is transportation. Networked video cameras, touch sensors, smart toll terminals and other gadgets help analyze public transport traffic and suggest new interchanges, adjust the number of buses, move stops, etc.
In Singapore, Wi-Fi is available almost everywhere. It is he who is used by city services to manage the life of the city. To control traffic on the roads, an intelligent transportation system operates here , which relies not only on a network of gadgets installed on the roads, but also on sensors, cameras and GPS devices that are in taxis.
Moreover, the system makes it possible to adapt the urban environment for people with disabilities – for example, it automatically identifies them at crossings and increases the green light time.
Wi-Fi is also powered by other services that enable cities to collect big data, reduce costs and improve service efficiency – smart parking and smart lighting, smart video surveillance, and automatic water and power supplies.
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