IP Security is applied to IP packets as they are sent and received. Packets are matched against filters when being sent (outbound) to see if they should be secured, blocked, or passed through in cleartext. Packets are also matched when received (inbound) to see if they should have been secured, should be blocked, or should be permitted into the system.
- In the IP Filter List dialog box, click Add.
- In the Name field, enter Partner Filter.
- Ensure the Use Add Wizard check box is selected, and then click Add.
The IP Filter Wizard appears.
- Click Next.
- Ensure the Mirrored. Match packets with the exact opposite source and destination addresses check box is selected, and then click Next.
In the Source address drop-down menu, select My IP Address, and then click Next.
The source address (My IP Address) is the IP address of the computer you are currently working from. In this procedure, ComputerA is designated as the source computer.
- In the Destination address drop-down menu, select A Specific IP Address or Subnet.
In the IP Address or Subnet field, enter your ComputerB IP Address, and then click Next.
The destination address (ComputerB IP Address) is the IP address of the destination computer. In this procedure, ComputerB is designated as the destination computer.
- In the Select a protocol type drop-down menu, select Any, and then click Next.
- Ensure the Edit Properties check box is not selected (this is the default setting), and then click Finish.
- Click OK.
The IP Filter Wizard closes and returns you to the Security Rule Wizard.
- To configure the authentication method, proceed to the next topic.