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User who did this - Hugh Waite (hugh.waite)
Attached to Project - sip-router
Summary - Incorrect outbound interface used in Via and Record-Route
Task Type - Bug Report
Category - Core
Status - Unconfirmed
Assigned To -
Operating System - All
Severity - Medium
Priority - Normal
Reported Version - 3.3
Due in Version - Undecided
Due Date - Undecided
Details - I am using the recent advertised_address feature of kamailio 3.3 to bridge
signalling across different network interfaces.
I have these lines in my config (in this order; eth0 and eth1 respectively):
listen 192.168.0.61 advertise 192.168.0.75:5060
listen 192.168.10.61 advertise 192.168.10.75:5060
When a call comes in on .10.61 and is sent on .0.61 (eth1 -> eth0) a double
record-route is inserted and the correct advertised addresses are used (.10.75 and .0.75).
This is correct and a BYE sent from the called client works.
When a call comes in on .0.61 and is sent to .10.61 (eth0 -> eth1) only one
record-route header is inserted which contains .0.75 (eth0). This prevents the called
client from sending within-dialog requests because the first route header is on the wrong
network. The Via also contains the .0.75 address.
Even stranger, if I swap the two 'listen' lines in my config, kamailio inserts a
double rr header with both advertised addresses even when sending requests from eth0 to
eth0, also causing within dialog requests to fail.
Does kamailio always pick the first interface for the outbound rr?
I have tried to work around this by using
set_advertised_address("192.168.10.75") is various places, but this seems to
only affects the Via header.
One or more files have been attached.
More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=241
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