[c-nsp] IP GRE tunnel up/down

Peter Rathlev peter at rathlev.dk
Wed Jul 13 12:37:00 EDT 2011


On Wed, 2011-07-13 at 11:19 -0400, Drew Weaver wrote:
> Pretty much no matter what I do the interface status is always:
> 
> Tunnel1 is up, line protocol is down
> 
> I've read that tunnels should be up/up unless you are using keepalives
> and it detects a failure.

Is the destination reachable? I.e. what does "show ip route <destination
IP address>" tell you? An unreachable destination would result in
up/down.

What platform/software are you using? And what's the complete output of
"show interface Tunnel1"?

-- 
Peter




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