22 May
2011
22 May
'11
3:59 p.m.
Hi Andrew,
On 05/22/2011 03:40 PM, Andrew Pogrebennyk wrote:
AFAIK kamailio rr module adds 2 RR headers (one with
the inbound address
and one with the outbound address) when your transaction comes with one
interface/port and leaves via another.
In EC2 the receive socket is the same as send socket and I've had no
luck trying to get kamailio insert advertised address as inbound RR and
then the outbound RR, by calling record_route_preset() several times in
a row too. This is a problem if lb is in front of another proxy.
In the final SPCE v2.2 (to be released next week) we do it manually
using insert_hf(). It's ugly, but it works. Note that this is not there
yet in v2.2-rc1. Anyways, it looks like this (using template-toolkit,
for those who don't know the SPCE):
[% IF networking.aaddress %]
insert_hf("Record-Route: <sip:[% networking.aaddress %]:[%
kamailio.lb.port %];lr;r2=on>,<sip:[% networking.iaddress %]:[%
kamailio.lb.port %];lr;r2=on>\r\n");
[% ELSE %]
record_route();
[% END %]
You need to check the direction of the message also to put the addresses
into the right order.
In the latest Kamailio trunk, RR module supports adding two
Record-Routes using record_route_preset(), see
http://kamailio.org/docs/modules/devel/modules_k/rr.html#id2784744 .
Andreas