Hi Gang

I have come across an strange issue.

To make rtpengine use the same IP protocol as signaling I examine:

ip_type($nh(d))

Now I have encountered a very strange case involving Kamailio with topos and Asterisk.

Initial INVITE was performed via IP6 from Asterisk to Kamailio.

Then two Re-Invites were performed Kamailio => Asterisk to refresh the session.

The first one happened via IPv6 and the $nh(d) ip_type was IPv6 as rtpengine got hinted to use IPv6

On the second one, something went wrong:

According to what Kamailio sent to Homer via siptrace module, the Invite was sent to the IPv6 address of the Asterisk machine.

rtpengine got hinted IP4, so $nh(d) must have contained an ipv4 address! But the R-URI (provided by topos) contains the IPv6 address of the Asterisk machine.

The HEP capture on Asterisk did not record that Re-Invite sent from Kamailio. Neiter via IPv4 nor via IPv6.

Has anyone else seen such issues?

At which level does the siptrace module work? Is it capturing 'on wire' or is it capturing what kamailio believes it is sending which might be altered when sent out on the wire?

Mit freundlichen Grüssen

-Benoît Panizzon-