Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Need to limit traffic from one router to travel over another

I have a router in a remote city that has a Frame Relay connection to the entire corporate network. The remote city is adding another circuit that connects to a frame network of a partner company. The remote users have to access both systems, but traffic from the second frame cannot go to the main frame relay system. Can anyone offer some suggestions?

1 REPLY

Re: Need to limit traffic from one router to travel over another

Hi,

Use access-lists to deny the other companys subnet (frame address) from going out the other frame interface on that router and permit just you're networks. Also, if you're using a routing protocol use filters (distribute-lists, route-maps, etc) to deny the route updates from going across that other frame interface and vice-versa if needed. If you're using IGRP/EIGRP, OSPF, etc you can use a seperate process/AS # for that interface so the routing protocols are completely seperate. If you're redistributing between routing protocols then use distribute-lists, route-maps to filter whats needed.

You also may want to disable CDP going toward them, and use some of the Firewall features depending on what your needs.

Regards, Erick

84
Views
0
Helpful
1
Replies