Details about home router Functions

The communications department allows each Broadband User to use two computers to share the Internet. This user needs to install a Broadband Router. Then, what kinds of routers should be purchased to make it more appropriate?

Many of the current Broadband Router functions are indeed very practical for home users and can improve the performance of many network applications. Next we will talk about the functions of home routers. By the way, we will tell you which functions are more practical and of little significance:

DHCP function:

This function is one of the essential basic functions. It is implemented through a server in a network to provide the corresponding network configuration service, you can provide temporary IP addresses, default gateways, DNS servers, and other network configurations for network terminal devices. This feature is generally enabled by default. If not, you are advised to open it on the management interface, in this way, the computer connected to the vro can access the Internet using the automatically obtained IP settings in network settings, which is very convenient. Of course, DHCP technology also has its disadvantages:

Random IP Address: users' IP addresses are randomly allocated with uncertainty.

Access permission change: if a user's access permission is divided based on an IP address, the access permission varies with the IP address.

Inaccessible: IP addresses obtained through DHCP are uncertain, making it difficult for users to be accessed.

Application continuity: If you use networks continuously between WLAN networks in different network segments, changing the IP address will interrupt the application.

Poor security: external network users pose security threats to the network itself

UPNP function:

Universal plug-and-play (UPnP) is a common architecture for peer-to-peer network connection between PC machines and smart devices (or instruments), especially in the home. Based on Internet standards and technologies (such as TCP/IP, HTTP, and XML), UPnP enables devices to automatically connect to and work with each other to enable the network (especially the home network) it is possible for more people.

The UPnP is widely used because it targets home networks, nearby networks, and networks in small businesses and residential buildings. Under the management of network control devices, it supports data communication between any two devices. UPnP does not depend on a specific operating system, programming language, or physical media.

This is not easy to understand, because it requires additional NAT and programming knowledge to be clearly explained, so we can simply understand it in this way, UPNP allows Intranet users to implement the following applications:

Multi-player online games (such as World of Warcraft and other multiplayer Combat Games)

Network peer connection (for example, P2P transmission such as BT download)

Real-time communication (such as MSN voice and file transmission)

Remote Assistance (one of Windows XP functions)

Firewall function:

I believe this function is not unfamiliar to everyone. In fact, the firewall function of home routers is relatively simple. It can only mask internal network IP addresses, freely set IP addresses, and filter communication ports. In addition, the filtering rules of household servers are only some basic data packet rejection rules, and cannot achieve good protection effect. However, they can still cope with General cyberattacks.

Currently, vro firewall functions include anti-IP address filtering, URL filtering, MAC address filtering, binding IP addresses to MAC addresses, anti-Black capabilities, and security logs. With the built-in firewall function of the vro, you can set different filtering rules to filter abnormal information packets from the Internet.

In addition, if the vro enables the firewall function or the firewall's filtering rules are too strict, some normal network applications may encounter errors, however, you can enable the firewall in most cases.

Summary 1:

The above three are relatively practical functions, especially UPNP. Now the latest generation of home routers in various major factories have basically provided support. If the package does not indicate support for UPNP, it may be a product of the previous generation. We do not recommend that you purchase it.

Nic MAC address ing:

This function seems useless, but some college network friends may know that the school of internal network management is relatively strict, use MAC-IP binding method for restrictions, so in this case, the router cannot directly use the campus network. To enable the MAC address ing function of the NIC, map the MAC address of the bound Nic to the WAN port of the router, let the monitoring system identify this vro as a bound Nic, and then you can use the vro normally.

Website Filtering:

This function allows users to enter some site URLs that are forbidden to access. If an intranet user attempts to access these addresses, the router rejects the requests. This feature prevents children from browsing unhealthy or insecure websites.

Conclusion 2:

These two functions are not supported by each home router, but sometimes they are quite practical.

Internet access permission restriction:

This feature is often used by enterprises and Internet cafe routers, but now it has already appeared on some brands of home routers. It allows the Administrator to set which IP addresses can have network access permissions.

Traffic management and monitoring functions:

Previously, this function was also a basic function of Internet cafe routers. It allows administrators to set how routers limit the bandwidth occupied by each user and at what time they are available to users, some can also list the real-time traffic curves of all current users.

Print Server function:

In fact, this function integrates the printing server on the router, and shares a printer with all users in the LAN through a dedicated printing server chip and a USB interface, the router will assign an IP address to the printer connected to the USB interface, and other LAN users can directly use the network printer through this IP address.

This function is generally provided by office routers. Because it requires chips, the cost is relatively high. routers that support the printing server function are several hundred more expensive than other similar products.

Summary 3:

These functions are not practical for home users. They can be said to be transplanted from other professional-purpose routers, especially the printing server function, which will greatly increase the price of routers, it is really not very economical. If SOHO users use it, they can.

Virtual Dialing:

This function is necessary for a Broadband Router. Otherwise, the router cannot be called a Broadband Router, because ADSL Broadband itself requires virtual dialing. After the virtual dialing is set, after a vro is started or restarted, the user-entered account and password will be used for dialing. That is to say, as long as the vro is in the active state, it will remain online, monthly subscription users can use the virtual dial-up function to save the trouble of dialing each time they access the internet. If they are not monthly subscription users, the vro will remain online all the year round after the virtual dial-up is set, which is dangerous, the monthly network fee will increase by a large amount. If it is residential broadband, it is a type of LAN, which automatically obtains IP addresses without virtual dialing.

Web Interface Management:

The current home routers are all web interface management, which is very convenient to use, just like accessing the Internet at ordinary times.

Conclusion 4:

These two functions are the most essential of A Broadband Router, as long as they are supported by a Broadband Router.

Summary:

In fact, a vro is equivalent to a small computer with CPU and memory, and its own operating system and program code. well-written systems and programs can greatly improve the stability and execution efficiency of the vro. When developing these software, a router manufacturer often deletes and modifies the enterprise router software system with the same CPU to reduce development costs, we have observed several brands of home broadband routers and low-end Enterprise broadband routers. Their software versions are basically the same, generally only the last small bit, this is probably why such a home Broadband Router has enterprise-level router functions. Of course, some functions are not very likely to be used by home users, such as DMZ, DDNS, and virtual servers. The system kernel of enterprise-level routers is good, stable, and highly efficient, it is also very good for Migration for users, but you can simply turn off some seemingly redundant features.