[c-nsp] gre tunnels

[Josh Duffek]

This will probably help:
http://www.cisco.com/warp/public/707/multiroute.html
(just disregard the crypto stuff unless you want a VPN)

If you cannot ping the remote end of the tunnel then forget about eigrp
for a bit.  Let's say one end of the connection is 1.1.1.1 and the other
is 1.1.1.2.  I would do something like this:

Config t
Service timestamp debug datetime msec
!unless you already have better
do sh access list !look for a number starting with 101 that isnt used
!let's say 150 isnt in use:
access-list 150 permit icmp host 1.1.1.1 host 1.1.1.2
access-list 150 permit icmp host 1.1.1.2 host 1.1.1.1
end
term mon
debug ip pack 150 detail
debug tun
ping 1.1.1.whatever the other side is.

Thanks,

josh duffek    network engineer
consultantjd16 at ridemetro.org

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Kern, Tom
> Sent: Friday, February 25, 2005 12:32 PM
> To: Cisco (E-mail); Cisco List 2 (E-mail)
> Subject: [c-nsp] gre tunnels
> 
> hi, i'm trying to forward eigrp traffic thru a gre tunnel between 2
> routers. does anyone know of a good doc for that.
> 
> also, when i created tunnel, i can't ping the tunnel address from
either
> router.
> anyway to troubleshoot this?
> thanks
> 
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