Sounds like a bug.
Anyway, as fix_nated_contact is not standard conform, it is better to
use handle_ruri_alias() and add_contact_alias() (see the Kamailio
default config file). Maybe they handle also IPv6 correct.
regards
Klaus
On 22.01.2015 16:26, Sebastian Damm wrote:
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@192.168.8.132 <mailto:sip%3Abob@192.168.8.132>>
outbound
Contact: <sip:bob@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
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