Vro features in different network environments (1)

In network environment applications in various industries and fields, routers are one of the most important devices in network applications as devices for interconnection between different networks and multiple subnets.

The principle of a vro is also easy to understand. It is used to connect multiple logically separated networks. The so-called logical network represents a separate network or a subnet. When data is transmitted from one subnet to another, it can be done through a router. Therefore, a router can determine the network address and select the path. It can establish flexible connections in Multi-network interconnection environments, A vro can connect to different subnets using different data groups and media access methods. The vro only accepts information from the source station or other routers and belongs to an interconnected device at the network layer.

Based on the different functions of routers in network applications in different fields, I will introduce them one by one to give readers a deeper understanding of routers in different fields.

Vrouters in different network application environments

Home Network Application Environment

The current Broadband Router requires only one external IP address to connect multiple computers in the home to the high-speed Internet, saving time and money. It is no longer as complicated as having a computer configured as a proxy server sharing. Currently, vrouters generally have built-in full-duplex 4-port 10/100 M switches. When there are less than 4 computers, they can directly connect to four devices to share the Internet, making it easy to build a home network.

For average home users, the network speed and performance requirements are not too harsh, and other aspects such as special functions do not have too high requirements, common low-price broadband routers on the market are enough to meet the needs of this group. For high-end home users, they choose high-price broadband routers with certain special features, but the basic performance and principle of the routers are the same. If you have mobile Internet access requirements, you can select a Wireless Broadband Router.

Next let's take a look at the basic common functions of the general home Broadband Router:

1. Data Channel functions and control functions:

This is a router with two typical functions. The data tunnel functions include forwarding decision, backplane forwarding, and output link scheduling, which are generally completed by specific hardware. The control functions are generally implemented by software, it includes information exchange with neighboring routers, system configuration, and system management. When purchasing a home router, based on the same price, the large functional indicators are of course our selection objects.

2. firewall functions:

Network security is currently the most important concern. The firewall built in the router can provide basic firewall functions. It can shield the IP addresses of internal networks and freely set IP addresses and filter communication ports, it can prevent hacker attacks and virus intrusion. Users can have a secure network environment without having to install other virus protection devices. 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 router, you can set different filtering rules to filter all abnormal information packets from the Internet, so that internal network users can access the Internet with peace of mind, this is one of the most important functions of a home router.

3. Virtual Dialing:

There are two ways to connect ADSL to the INTERNET: Virtual dialing and leased line access. Users using virtual dial-up methods use dial-up programs similar to MODEM and ISDN, which is similar to the original method in terms of usage habits. users using leased line access can access the INTERNET as long as they start up. The so-called virtual dialing means that the user name and password (the same as the original MODEM and ISDN access) need to be entered when using ADSL to access the INTERNET, but the ADSL connection is not a specific access number such as 16900, instead, a dedicated dialup program is used to establish a connection with a specific network server. This function ensures the security of users' Internet access and makes rational use of network resources.

4. DHCP functions:

DHCP (Dynamic Host Allocation Protocol) is a standard TCP/IP protocol that simplifies the allocation and management of Host IP addresses. It can avoid errors caused by manual IP addresses and subnet masks, it also avoids address conflicts caused by assigning an IP address to multiple workstations and is a safe and reliable setting.

5. Website Filtering:

With this function, you can monitor and record Website access on the entire network, and manage computers in the network through permission groups. Each user has their own permissions, thus, the scope of the website browsing by members in the network is determined. websites that are not allowed to access will be blocked and a clean network environment will be provided for you.

6. web Interface Management:

Most home users lack relevant network expertise and may have difficulties in configuration or maintenance. Web interface management makes operations easier, and the router maintenance interface in Chinese is more user-friendly.

7. Internet access permission restrictions:

In the current home network, in order to limit the children's Internet access time and improper network applications, You need to restrict the access permission of the children's dedicated computers, when purchasing a vro, you need to check whether the selected vro has this flexible configuration function (that is, the corresponding proxy service ).