Measure the test taker's knowledge about system tools in network router settings.

We are very interested in understanding network router settings. Before giving you a detailed description of how to set up a vro, let's first understand the security configurations and system tools related to it.

1. Security Configuration

1. firewall configuration. This interface controls the enabling of the overall functions of the router firewall and sets the network router. And sub-item functions: Enable and filter rules for IP address filtering, domain name filtering, and MAC address filtering. The subsequent Security Configuration takes effect only after the firewall's general switch is enabled. When the firewall is enabled, the network speed may be affected. If you do not use this function frequently, we recommend that you disable it.

2. IP address filtering: IP address filtering can be used to reject or allow communications between computers and the Internet in the LAN. You can deny or allow specific port numbers or all port numbers of specific IP addresses. You can add new entries to add new filter rules or modify or delete preset rules. Example 1: If you want to prohibit computers with the IP address 192.168.1.7 from sending and receiving emails, and computers with the IP address 192.168.1.8 from accessing websites with the IP address 202.96.134.12, do not restrict other computers in the LAN, in this case, you can follow the steps below to configure:

Step 1: Enable the firewall General switch. Step 2: Enable "ip address filtering" and configure "Default filtering rules" to "allow vro to be used for network router settings for data packets that do not comply with the configured IP address filtering rules. Step 3: click Add new entry, and then add filter entries as required. In this example, the configuration of disabling email sending by the computer 192.168.1.7 is disabled. After the configuration is complete, click the Save button. Step 4: Go back to Step 3 and configure Filter Entries: Disable computers with the IP address 192.168.1.7 from receiving emails on the LAN. Disable computers with the IP address 192.168.1.8 from accessing websites with the IP address 202.96.134.12. In example 1, a total of three IP address filtering rules need to be configured, which correspond to the three filtering entries in the above list in sequence.

3. domain Name Filtering: domain name filtering can prevent all computers in the LAN from accessing specific domain names on the Wan (such as the Internet). Example 1: if you want to prohibit computers in the LAN from accessing "www.yahoo.com.cn", "sina.com", and all. net, you can follow the steps below to configure the site:

Step 1: Enable the firewall General switch and enable "Domain Name filtering ". Step 2: click Add new entry and configure the entry information. In this example, the website www.yahoo.com.cn is denied access. After the configuration is complete, click the Save button. Step 3: Go back to step 2 and configure Filter Entries: Disable access to "sina.com" and all sites ending with ". net. In example 1, a total of three domain name filtering rules need to be configured, which correspond to the three filtering entries in the above list in sequence.

4. MAC address filtering is the key to vro configuration. the MAC address filtering function allows or denies computers in the LAN from accessing the WAN through MAC addresses, effectively controlling the Internet access permissions of users in the LAN. Example 1: If you do not want computers with the MAC address 00-E0-4C-00-07-BE and 00-E0-4C-00-07-5E in the LAN to access the Internet, but want other computers in the LAN to access the Internet, you can configure the MAC address filtering table as follows:

Step 1: Enable the firewall General switch. Step 2: Enable "MAC address filtering" on the firewall configuration interface, and set "default filter rule" to "Disable enabled MAC addresses in the configured MAC address list from accessing the Internet, allow other MAC addresses to access the Internet ". Step 3: click Add new entry and configure the entry information. In this example, the computer with the MAC address 00-E0-4C-00-07-BE cannot access the Internet. After the configuration is complete, click Save. Step 4: Go back to Step 3 and configure Filter Entries again: Disable computers with the MAC address 00-E0-4C-00-07-5E from accessing the Internet. In example 1, a total of two domain name filtering rules must be configured, which correspond to the two filtering entries in the previous example list in sequence.

5. remote WEB management. The remote WEB management function allows you to set network routers from the WAN through a Web browser. This feature allows you to perform management tasks from a remote host. WEB Management port: The WEB Management port used to access the Broadband Router. Remote WEB management IP Address: the IP address of the computer that can access the vro to perform remote WEB management.

6. ping the WAN port. You can configure to ignore the Ping command from the WAN port. In this way, the computer in the WAN cannot Ping the local router. After the changes are completed, click Save.

Ii. routing functions

Static Routing is a special route. You must have a certain understanding of the network principle and IP address rules when debugging Static Routing. It is used to specify that data packets arriving at a specific address must be sent from the specified gateway exit. This function does not have much practical significance for common users. We recommend that you do not modify this option if you do not have special requirements to avoid improper Internet access.

Iii. System Tools

System Tools include software upgrade, factory configuration restoration, vro restart, logon password modification, and system logs. In many cases, it is recommended that the Administrator modify the logon username and password to prevent unauthorized users from logging on to the vro at will. Restarting a vro can help you manually restart the vro. After modifying some functions, you must restart the vro.

Iv. Summary

After reading the above explanation, I wonder if you can have a deeper understanding of the network router settings. These functions are of great help to applications in complex environments and users with special needs. When you need to use a function module, you can refer to this article to execute the configuration. Some vrouters of different models may have different functional modules on the configuration interface, but their essentials and principles are basically the same. netxia only lists some of the commonly used functions for implementation, if you encounter a feature that is not described in this article, you can refer to the vro manual or guide. I hope this article will make it more flexible and convenient for you to use vrouters.