[c-nsp] gre tunnels

[Josh Duffek]

Wait a sec.  Do you have ip connectivity between the two endpoints?
>From the tunnel source can you ping the tunnel dest?  Is that what you
are saying or something else?

Can you post your (edited) tunnel interface config?

If you do have ip connectivity between the two debug tunnel would be of
interest.  If not figure out the routing problem first.

Thanks,

josh duffek    network engineer
consultantjd16 at ridemetro.org

> -----Original Message-----
> From: Kern, Tom [mailto:tkern at CHARMER.COM]
> Sent: Friday, February 25, 2005 12:40 PM
> To: Josh Duffek; Cisco (E-mail)
> Subject: RE: [c-nsp] gre tunnels
> 
> first, sorry for posting twice.
> 
> second, i can't even ping the source end of the tunnel at the source
> router.
> 
> thanks for the doc.
> 
> 
> 
> Josh Duffek wrote:
> > 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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