Hi Andreas,
my kernel coding skills are getting a bit rusty (no pun intended), and
I'll think others on this list are more capable to do so. But let me at
least provide feedback from the "3GPP / GTP side":
On Mon, Jan 30, 2017 at 05:37:08PM +0100, Andreas Schultz wrote:
Having both GTPv0-U and GTPv1-U is not always
desirable.
Fallback from GTPv1-U to GTPv0-U was depreciated from 3GPP
Rel-8 onwards. Post Rel-8 implementation are discuraged
from listening on the v0 port (see 3GPP TS 29.281, Sect. 1).
I confirm this and I think the related change should be applied.
A future change will completely decouple the sockets
from the
network device. Till then, at least one of the sockets needs to
be specified (either v0 or v1), the other is optional.
Makes sense.
--
- Harald Welte <laforge(a)netfilter.org>
http://netfilter.org/
============================================================================
"Fragmentation is like classful addressing -- an interesting early
architectural error that shows how much experimentation was going
on while IP was being designed." -- Paul Vixie