Hi all, I hope this is the right place to post this but I could not find a users tcpdump list. I am trying to capture traffic between two hosts at a point where the traffic is encapsulated in MPLS headers. But using the normal 'host x and host x' doesnt seem to work. I am guessing it has something to do with the mpls header on the packets possibly changing the location of the src/dst addresses from the packets header edge? I thought I might be able to work around this by using the snarf options -s0 to grab the whole packet and matching on the host pairs I am looking for but nothing is captured. Anyone have experience with trying to decode these type of packets? Or know if I am headed in the right direction? :-p thanks!

--Scott


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