Hmm... this is strange, because the 3GPP specs (3GPP TS 29.060 V8.5.0, Section 10) states "UDP/IP is the only path protocol defined to transfer GTP messages in the version 1 of GTP. [...] The UDP Destination Port number for GTP-C request messages is 2123. It is the registered port number for GTP-C. The UDP Destination Port number for GTP-U request messages is 2152. It is the registered port number for GTP-U." Which one is more credible?
Regards,
Rayne
--- On Wed, 4/8/09, Anders Broman <anders.broman@xxxxxxxxxxxx> wrote:
> From: Anders Broman <anders.broman@xxxxxxxxxxxx>
> Subject: Re: [Wireshark-dev] Using port numbers to determine next dissector
> To: "Developer support list for Wireshark" <wireshark-dev@xxxxxxxxxxxxx>
> Date: Wednesday, April 8, 2009, 8:26 AM
> Hi,
> http://www.iana.org/assignments/port-numbers
> Lists:
> gtp-control 2123/tcp GTP-Control Plane (3GPP)
> gtp-control 2123/udp GTP-Control Plane (3GPP)
> gtp-user 2152/tcp GTP-User Plane (3GPP)
> gtp-user 2152/udp GTP-User Plane (3GPP)
>
> So the dissector looks OK.
> Regards
> Anders