Hello,
kamailio adds only outbound address in in a new single Via header, being
required by the next hop to send the reply back o kamailio. However, the
full Via stack has to be sent back in the reply, but the registrar
doesn't do it.
Based on the server header in reply, it is a Cirpack and it
Am Mittwoch, 5. September 2018, 17:43:34 CEST schrieb Karlheinz Knapp:
> we want to use kamailio as a IPv6 to IPv4 proxy.
> IPv4 to IPv4 bridging with NAT works.
>
> If we come from an IPv6 address, the registration packet is send via IPv4
> to the provider.
> He answers with 401 Unauthorized and
