Defining Ip Prefix Lists - Foundry Networks Switch and Router Installation And Configuration Manual

Foundry Switch and Router Installation and Configuration Guide
2. Click on the plus sign next to Configure in the tree view to display the list of configuration options.
3. Click on the plus sign next to IP to display the list of IP configuration options.
4. Select the Community Access List link.
• If the device does not have any community ACLs, the IP Community List panel is displayed, as shown in
the following example.
• If a community ACL is already configured and you are adding a new one, click on the Add Community
Access List link to display the IP Community List panel, as shown in the following example.
NOTE: You cannot modify a community ACL. Instead, you can delete and then re-add the ACL. To delete
an ACL, click on the Delete button to the right of the row describing the ACL, then click on the Add
Community List link.
5. Edit the ACL ID in the ID field, if needed. You can enter a number from 1 – 199.
6. Edit the number in the sequence number in the Sequence field, if you want to override the automatically
generated sequence number. You can configure up to 199 entries in a community list. If you do not specify a
sequence number, the software numbers them in increments of 5, beginning with number 5. The software
interprets the entries in ascending sequence order.
7. Select the action you want the software to perform if a route's community list matches this ACL entry.
8. Select the community type by clicking on the checkbox to the left of the description, or enter the community
numbers in the Community List field.
9. Click the Add button to save the change to the device's running-config file.
10. Repeat steps 6 – 9 for each entry in the ACL. To create another community ACL, go to step 5.
11. Select the Save link at the bottom of the dialog. Select Yes when prompted to save the configuration change
to the startup-config file on the device's flash memory.
NOTE: You cannot apply the community list ACLs to a neighbor using the Web management interface. You
must use the CLI.

Defining IP Prefix Lists

An IP prefix list specifies a list of networks. When you apply an IP prefix list to a neighbor, the Layer 3 Switch
sends or receives only a route whose destination is in the IP prefix list. You can configure up to 100 prefix lists.
The software interprets the prefix lists in order, beginning with the lowest sequence number.
USING THE CLI
To configure an IP prefix list and apply it to a neighbor, enter commands such as the following:
19 - 58 December 2000