[SR-Users] double_rr issues

[Roman Dissauer]

Hi,

/* uncomment and configure the following line if you want Kamailio to
 * bind on a specific interface/port/proto (default bind on all available) */
# listen=udp:10.0.0.10:5060
mhomed=1

even this config is the same. I do not bind on specific interface since doc says that if there is no listen, kamailio will bind on all interfaces…
strange thing… if I explicitly set listeners for tcp and udp on all IP addresses it works!

I have a dozen kamailios out there, all in mhomed=1 config. On every single one double_rr works without setting any listen parameters, only on this particular one machine in a separate datacenter it didn’t work.

Thanks for the hint!
Roman

> Am 27.02.2019 um 22:24 schrieb Alex Balashov <abalashov at evaristesys.com>:
> 
> Does Kamailio have listeners (listen= on both interfaces)? What is the value of the ‘mhomed’ setting?
> 
> These nuances surely differ between the two hosts.
> 
> —
> Sent from mobile, with due apologies for brevity and errors.
> 
>> On Feb 27, 2019, at 4:14 PM, Roman Dissauer <roman at dissauer.net> wrote:
>> 
>> I’m experiencing issues with kamailio 5.1 in multihomed config:
>> 
>> two machines, latest debian stretch, latest kamailio 5.1, exactly same config (verified with diff)
>> both machines have an internal and an external network interface. Only thing different is that they are in different datacenters.
>> 
>> on one machine everything works perfect, on outgoning calls rr parameters are added perfectly right:
>> Record-Route: <sip:yy.yy.yy.yy;transport=tcp;r2=on;lr;nat=yes>
>> Record-Route: <sip:xx.xx.xx.xx;transport=tcp;r2=on;lr;nat=yes>
>> 
>> where yy.yy.yy.yy is the external ip and xx.xx.xx.xx is the internal IP
>> 
>> on the other machine I only get:
>> Record-Route: <sip:xx.xx.xx.xx;transport=tcp;lr;nat=yes>
>> 
>> even if I set enable_double_rr to 2 I get:
>> Record-Route: <sip:xx.xx.xx.xx;transport=tcp;r2=on;lr;nat=yes>
>> Record-Route: <sip:xx.xx.xx.xx;transport=tcp;r2=on;lr;nat=yes>
>> 
>> I already checked with traceroute that the routing to the destination IP Adresses are going through the external interface.
>> 
>> maybe someone has a hint for me.
>> 
>> Thank you all in advance!
>> Roman
>> 
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