[SR-Users] fix_nated_contact and IPv6

[Sebastian Damm]

Hi,

I'm trying to set up a Kamailio (4.1.3) server which converts between IPv6
and IPv4. Everything looks pretty good. Now I have a test client which
sends packets via IPv6, but in contact header, SDP etc. there are still
IPv4 addresses. (This comes from some converting from v4 to v6 earlier.)
Thus, Kamailio tries to do a fix_nated_contact(). But after fixing, the
Contact URI is wrong.

Example:
inbound
Contact: <sip:bob at 192.168.8.132>

outbound
Contact: <sip:bob at 1234:1234:0:1234:0:0:0:2>

The correct way of transforming the Contact URI would be:
Contact: <sip:bob@[1234:1234:0:1234:0:0:0:2]>

This incorrect Contact URI doesn't hurt first, but when the called party
wants to hang up the call, it addresses the URI from Contact header, and
Kamailio can't parse the Request URI:


Jan 22 12:03:48 router /usr/sbin/kamailio[21309]: ERROR: pv
[pv_core.c:304]: pv_get_ruri_attr(): failed to parse the R-URI
Jan 22 12:03:48 router /usr/sbin/kamailio[21309]: ERROR: rr [loose.c:934]:
loose_route(): failed to parse Request URI
Jan 22 12:03:48 router /usr/sbin/kamailio[21309]: ERROR: domain
[domain.c:140]: is_uri_host_local(): error while parsing R-URI


Is this a bug in the nathelper module? Was it never meant to handle IPv6
addresses? Or do I understand something wrong?

Best Regards,
Sebastian
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20150122/648c7a81/attachment.html>