[SR-Users] Strange auth_challenge behaivor on 407

[Yuriy Gorlichenko]

Hi
I'm using version: kamailio 5.1.2

I have strange issue with auth_challenge

kamialio works as NAT handler. When Register comes kamailio handles nat and
save original ip:port at the received field in location table

I found that when local port in contact is different than external port
reply 407 on INVITE comes to externalip (from received) : internalport(from
contact)
And never reaches destination

for exmaple
Register comes from
192.168.1.10:50555

Kamailio saves at the Received
12.1.1.12:1030

but when invite comes form 12.1.1.12:1030 kamailio sends reply to
12.1.1.12:50555

i don't think that this is an issue in kamailio source code but i can find
where i can configure it
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20180326/ef098b29/attachment.html>