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Neels Hofmeyr nhofmeyr at sysmocom.deOn Mon, Feb 20, 2017 at 06:28:07PM +0100, Andreas Schultz wrote: > >> +A specific tunnel is only defined by the destination entity. Since the > >> +destination port is constant, only the destination IP and TEID define > >> +a tunnel. The source IP and Port have no meaning for the tunnel. > > > > Are you absolutely sure about this? > > Yes. It took me a while to realize this. The crux is this statement in TS 29.060, > Section 7.3.1: Also sounds right to me. When the tunnel is established, each side of a GTP tunnel stores the other side's IP and TEID; port number is constant (unfortunately, which is one of the ideas/reasons behind gtphub). ~N -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: <http://lists.osmocom.org/pipermail/osmocom-net-gprs/attachments/20170221/80593bd3/attachment.bin>