Solved

ebgp multihop thru cisco asa

Posted on 2011-09-18
5
366 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 18

Expert Comment

by:jmeggers
ID: 36560021
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
ID: 36564682
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
ID: 36569545
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
ID: 36594722
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
ID: 36569951
Forgot about the default route. BGP won't establish without an explicit route.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
There’s a movement in Information Technology (IT), and while it’s hard to define, it is gaining momentum. Some call it “stream-lined IT;” others call it “thin-model IT.”
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…

705 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