The RIP Circuit Filter Table window displays the following parameters:
Type — Defines whether the current filter entry works on traffic coming into or out of the device.
Network Address — The network pattern to affect the filter entry. The network pattern works in conjunction with the network mask to define the filter entry.
Network Mask — Type in the letters F, 8, C, E, and 0 as many times as desired to indicate which part of the network pattern is important. The mask must be continuous from left to right. 00000000 means all addresses, ffffffff means one address (no address range). A combination of f 0 indicates a specific range. This combination must have f on the left side, 0 on the right side, and a single F, 8, C, or E, or 0 between them.
For example, if the network pattern is set to 12345678, set the network mask to ffff0000 to indicate that only the first four numbers of the network pattern are checked, and the remaining numbers are irrelevant. In this example, only RIP messages with the numbers 1234 as their first four digits are affected.
Action — Defines whether the indicated packets are forwarded (permit) or blocked (denied) when the current filter entry conditions are met. This parameter can be used to fine-tune other filter entries. For example, a filter entry can be set to block all RIP messages with a network pattern starting with 123, and set another filter entry to permit all RIP messages with a network pattern starting with 1234. As a result, all RIP messages with a network pattern starting with 123 that do not have 4 as the fourth digit are blocked.
To add a RIP Circuit Filter:
Click . The RIP Circuit Filter Insert window is displayed.
Complete the table entry fields and click . The RIP Circuit Filter window is displayed.
Click . When the Status field displays “Finished!”, the entry is confirmed as created.
To edit an RIP Circuit Filter:
Click . The RIP Circuit Filter Edit window is displayed.
Edit the required table entry fields and click . The RIP Circuit Filter window is displayed.
Click . When the Status field displays “Finished!”, the fields are confirmed as modified.
To delete an RIP Circuit Filter:
Select the entry to delete.
Click .
Click . When the Status field displays “Finished!”, the entry is confirmed as deleted.