[PATCH net-next v3 1/8] gtp: add documentation
nhofmeyr at sysmocom.de
Tue Feb 21 01:12:45 UTC 2017
On 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).
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