Re: Using Tunnels with iBGP

From: James (james@towardex.com)
Date: Fri Aug 06 2004 - 11:14:21 GMT-3


On Fri, Aug 06, 2004 at 09:57:29AM -0400, ccie2be wrote:
> Hey Sam,
>
> It seems like you understand the issue here, but you didn't mention how I
> can verify if packets between the peers are using the tunnel rather than
> just the IGP.

debug ip packets on the tunnel or:

Put an ACL on the physical interface that tunnel transits through:
  acc 101 den tc an eq 179 an
  acc 101 den tc an an eq 179
  acc 101 per ip an an

Now, wait a bit, up to the maximum hold-down timer configured (Cisco default
is 180 seconds). Then...
If your bgp session is still alive, congratulations, its going over tunnel! :)

Hope this helps..
-J

-- 
James Jun                                            TowardEX Technologies, Inc.
Technical Lead                        Network Design, Consulting, IT Outsourcing
james@towardex.com                  Boston-based Colocation & Bandwidth Services
cell: 1(978)-394-2867           web: http://www.towardex.com , noc: www.twdx.net


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