Solved

ebgp multihop thru cisco asa

Posted on 2011-09-18
5
361 Views
Last Modified: 2012-05-12
I am trying to peer two routers vie ebgp multihop.  each peer router is being a cisco asa firewall. The peer routers can ping each other and I have allowed tcp 179 on both ASA's but I still don't have a successful neighborship?  Am I missing something?

0
Comment
Question by:FREDARCE
  • 3
  • 2
5 Comments
 
LVL 18

Expert Comment

by:jmeggers
Comment Utility
TCP /179 is correct.  Only thing I can think of is be careful of NATing and what address is being used to establish the peer relationship.  You might do some debugs on the routers to identify what BGP is trying to do, and you might also look at the ASA logs to identify what traffic is being blocked.
0
 

Author Comment

by:FREDARCE
Comment Utility
I am using any nat on either ASA.  changed logging to debug but don't see anything in the logs.  I would at least expect to see deny attempts made on tcp/179.  how can I ensure that the peer routers are at least trying to establish a neighborship?

0
 

Accepted Solution

by:
FREDARCE earned 0 total points
Comment Utility
turns out my problem was I was relying on a default route for return traffic on each of the neighbor routers and what I needed to do was add a specific static route instead.  Once I added the static route bgp neighborship came up.
0
 

Author Closing Comment

by:FREDARCE
Comment Utility
turns out my problem was I was relying on a default route for return traffic on each of the neighbor routers and what I needed to do was add a specific static route instead.  Once I added the static route bgp neighborship came up.
0
 
LVL 18

Expert Comment

by:jmeggers
Comment Utility
Forgot about the default route. BGP won't establish without an explicit route.
0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

Suggested Solutions

Security is one of the biggest concerns when moving and migrating your data from your on-premise location to the Public Cloud.  Where is your data? Who can access it? Will it be safe from accidental deletion?  All of these questions and more are imp…
Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

728 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now