Comprehensive analysis of the practical application of small enterprise broadband Routers

With the development of China's routing industry, broadband routers in small enterprises are increasingly favored by enterprise users, and their market needs are gradually increasing. At the same time, their performance has also been recognized by many users. Although the features of low-end broadband routers cannot be compared with those of high-end products, small enterprises with low requirements can already meet their needs. Although small-sized enterprise broadband routers are small, they are also full of dirty data. Some functions are suitable for small-sized enterprises.

NAT

NATNetwork Address Translation) that is, network Address Translation. This routing technology is mainly used in the network to solve the shortage of public IP addresses, the principle of NAT is to convert an internal private network address to a valid public network address to allow access to the Internet. NAT translation technology, in fact, is the most basic and core technology of broadband routers for small enterprises. The principle of Internet sharing is NAT translation technology, all broadband routers use this basic technology. Because it separates Intranet and Internet, the Internet does not know the distribution of private IP addresses in the Intranet, so it cannot be accessed directly, because some manufacturers will publicize that their products have firewall functions, but this is not true.

Virtual Server

If you want to provide services to users on the Internet, you must have your own server. Such as Web server and FTP server. Once a Broadband Router is used, NAT sets up a barrier between the Internet and the Intranet, blocking Internet users from accessing internal servers. A Virtual Server opens a tunnel through port ing in a small enterprise Broadband Router and forwards the packets to the server to be accessed. Remote users access normal servers. To provide the above services, you must have a public IP address or a vro embedded DDNS function.

DMZ host

DMZ is called a "non-military zone ". To solve the problem that the external network cannot access the internal network server after the firewall is installed, it sets up a buffer zone between the non-secure zone and the security zone, which is located in a small network area between the Intranet and the Internet, some public servers can be placed here, such as enterprise Web servers and FTP servers. DMZ is mainly used to reduce the risks caused by the provision of services to untrusted customers. DMZ can separate public hosts from local network facilities.

DDNS Functions

DDNS is a dynamic Domain Name Service. It can map the dynamic IP addresses obtained by PPPoE to a fixed domain name resolution server, bind the IP address to the fixed domain name, and complete the domain name resolution task. DDNS can help you build a virtual host and publish information with your own domain name, so that others can access your server through the domain name.

DHCP server

Dynamic Host Configuration Protocol (DHCP) is a protocol that dynamically assigns and configures IP addresses to clients on TCP/IP networks. DHCP works in the customer/Server mode. In this mode, the small enterprise Broadband Router, known as the DHCP server, is responsible for transmitting network configuration parameters and allocating IP addresses to clients with the desired IP addresses. The DHCP server manages the IP addresses used for Dynamic Allocation in the network in a unified manner, which not only solves the address conflict problem, but also frees the network administrator from the burden of manually setting and allocating IP addresses.

MAC clone

What if a telecom operator limits Internet sharing and binds a MAC address? In this case, if a small enterprise Broadband Router provides MAC cloning, you only need to use the MAC address cloning function of the router to clone the MAC of a PC to the WAN port of the router, you can skip sharing, hey :).

UPnP Technology

UPnP universal plug-and-play) technology expands plug-and-play, which simplifies the networking process of smart devices in the home or enterprise. After devices that use UPnP technology are physically connected to the network, they can automatically connect to each other through the network, and the connection process does not require user participation in UPnP technology, because it does not rely on specific device drivers, but uses standard protocols, data that complies with UPnP standards can pass smoothly.