Router configuration interface filter in WINDOWS

Previous Article: routing interfaces and filters

RoutingConfiguration InterfaceFilterThe steps are as follows:

1) Expand "route and remote access", expand the server, expand "IP Route Selection", expand "General", and select to addFilterInterface, right-click, and select "properties ". As shown in Figure 5-14.

Figure 5-14 add a filter

2) on the "General" tab, click "input filter", select "accept all packets except the following conditions", and click "add ".

3) if you select "discard all packets except for the following conditions", only packets meeting the conditions will be received.

Enter the source address, destination network address, or IP address and subnet mask of a computer. Select the protocol to be filtered, and click Add, as shown in Figure 5-15.

Figure 5-15 add an input filter

The meanings in the "protocol" list in Figure 5-15 are as follows:

The TCP option is used to specify a source TCP port and a destination TCP port. You can specify either or both of them. If no port is specified, the default value 0 is used, that is, any port.

TCP established) contains only special packets, which are part of the established TCP connection pair.

The UDP option is used to specify a source UDP port and a destination UDP port. You can specify either or both of them. If no port is specified, the default value 0 is used, that is, any port.

The ICMP option is used to specify the ICMP code or ICMP type. If it is not specified, the default value 255 is used, that is, any port and any code.

Use any IP protocol.

Other protocols can be specified.

The steps for configuring the interface filter in routing implementation in WINDOWS are described. I hope you have mastered the steps. For more information about the implementation of WINDOWS routing, see the previous articles.

1. Static router for routing in WINDOWS
2. Dynamic Routing Protocol for routing in WINDOWS
3. The concept of routing in WINDOWS
4. Routing interfaces and filters implemented in WINDOWS
5. Router enabling in WINDOWS
6. Configuration of static routes in WINDOWS