Dropping packet from invalid source address

Peter Lithner plithner at yahoo.com
Thu Oct 6 08:56:01 UTC 2016

But even if I capture with "-i any" i see only 4 GTP packets: The ECHO Req/Resp and the PDP-C create Req/Resp. The are no GTP encapsulated ICMP/payload messages. 

I have attached a cap with an example of this.
Also, like I mentioned, nothing happens if I pause the ggsn with ctrl-z. The ping should have been interrupted by this, I think...

Not sure what to make of this. It seems I can't get GTP-U to work at all.
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