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How Do You Show a GRE Tunnel

We are running IPSec inside of a GRE tunnel.  The question was brought to me as to how to actually show the GRE tunnel itself.  I know that I can do a show crypto isakmp sa and it will show the IPSec.  I know that I can show int tunnel0 and it will show me the status of the tunnel interface.  How do I do GRE specifically?

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Re: How Do You Show a GRE Tunnel

dhopper82 wrote:

We are running IPSec inside of a GRE tunnel.  The question was brought to me as to how to actually show the GRE tunnel itself.  I know that I can do a show crypto isakmp sa and it will show the IPSec.  I know that I can show int tunnel0 and it will show me the status of the tunnel interface.  How do I do GRE specifically?

Not sure exactly what you mean. "sh crypto isakmp sa" shows the IPSEC tunnel, it doesn't show you the actual data but gives you statistics on traffic transmitted.  "sh int tunnel0" shows you the GRE tunnel, again it doesn't show you actual data but it does show you statistics on traffic transmitted.

Jon

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