[SR-Users] Determining if request is from a local domain

[Shane Harrison]

Hi all,

Solved! 

As is often the case, after working all morning on the problem, after posting I discovered my error.  I noticed that I hadn't included in my post the "alias=" command.  It was indeed in my script but I had used aws-rcsstg.voip.systems instead of aws-rcsstg.vvoip.systems !

I don't know how many times I have stared at that but I guess you often see what you want to see......

Apologies for wasting your time.

Kind regards
Shane

> -----Original Message-----
> From: Shane Harrison
> Sent: Wednesday, 13 July 2016 2:48 p.m.
> To: 'sr-users at lists.sip-router.org'
> Subject: Determining if request is from a local domain
> 
> Hi all,
> 
> From previous posts my understanding is that RURI's are matched against
> reverse DNS lookup of listen addresses and aliases set via the "alias="
> parameter in the config file (assuming the domain module isn't being used).
> However I am having difficulty in getting this to work. From looking at the
> code and the log file, it appears to me as if the alias isn't making it into the list
> of hosts that is checked against for some reason.
> 
>  Kamailio proxy is behind a loadbalancer (Kamailio dispatcher) and proxy is
> trying to relay the request because it doesn't recognise it as a local domain.
> Any thoughts on where my error is would be appreciated.
> 
> Relevant CFG file section - note that
> RCS_LB_PUBLIC_IP:RCS_LB_PUBLIC_PORT  is 52.64.xxx.221 :5061
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~~~~~~~
> auto_aliases=yes
> 
> # aliases and listening settings for sipproxy alias="aws-rcsstg.voip.systems"
> listen=tcp:10.4.1.62:5060 advertise
> RCS_LB_PUBLIC_IP:RCS_LB_PUBLIC_PORT
> 
> 
> My request is a REGISTER as follows:
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> received message
> REGISTER call-id b2ed2fdd at 192.168.148.30 received from 10.4.1.62 raw msg
> REGISTER sip:aws-rcsstg.vvoip.systems;transport=tls SIP/2.0
> Via: SIP/2.0/TCP
> 52.64.xxx.221:5060;branch=z9hG4bKa691.5fd57c2a783d3a5d7f6f80fcd0c815d
> 6.0;i=d91
> Via: SIP/2.0/TLS
> 192.168.148.30:5061;received=203.171.46.54;rport=64515;branch=z9hG4bK68
> b886fd00518;keep
> From: <sip:+6421608919 at aws-
> rcsstg.vvoip.systems;transport=tls>;tag=4af7e7d8
> To: <sip:+6421608919 at aws-rcsstg.vvoip.systems;transport=tls>
> Call-ID: b2ed2fdd at 192.168.148.30
> CSeq: 1995005270 REGISTER
> Max-Forwards: 69
> Contact:
> <sip:+6421608919 at 203.171.46.54:64515;transport=tls>;expires=240;+sip.inst
> ance="<urn:uuid:23624e3d-c98e-3b76-9acb-5499202e2f8d>";reg-
> id=1;+g.3gpp.iari-ref="urn%3Aurn-7%3A3gpp-
> application.ims.iari.rcs.sm";+g.oma.sip-im;+g.3gpp.iari-ref="urn%3Aurn-
> 7%3A3gpp-application.ims.iari.gsma-is";+g.3gpp.cs-voice;+g.3gpp.iari-
> ref="urn%3Aurn-7%3A3gpp-application.ims.iari.gsma-vs";+g.3gpp.iari-
> ref="urn%3Aurn-7%3A3gpp-application.ims.iari.rcse.sp";+g.3gpp.icsi-
> ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel";video
> User-Agent: FlowTalk-WindowsCommunicator_5.x
> P-Access-Network-Info: IEEE-802.3
> Allow:
> INVITE,ACK,BYE,CANCEL,REFER,NOTIFY,OPTIONS,PRACK,UPDATE,INFO,MESS
> AGE,SUBSCRIBE,PUBLISH
> Allow-Events: refer, presence
> Supported: 100rel, replaces, timer, gruu, join, histinfo, path
> Date: Wed, 13 Jul 2016 00:27:39 GMT
> Content-Length: 0
> Path:
> <sip:52.64.xxx.221:5060;transport=tcp;lr;received=sip:203.171.46.54:64515%3
> Btransport%3Dtls>
> 
> 
> Relevant section of the log where if( !uri == me ) is tested:
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Jul 13 03:18:06 aws-rcsstg-sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]:
> ERROR: *** cfgtrace:request_route=[SIPOUT]
> c=[//etc/kamailio/kamailio.cfg] l=1052 a=16 n=if Jul 13 03:18:06 aws-rcsstg-
> sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core>
> [socket_info.c:583]: grep_sock_info(): grep_sock_info - checking if host==us:
> 24==9 && [aws-rcsstg.vvoip.systems] == [10.4.1.62] Jul 13 03:18:06 aws-
> rcsstg-sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core>
> [socket_info.c:587]: grep_sock_info(): grep_sock_info - checking if port 5060
> (advertise 5061) matches port 5061 Jul 13 03:18:06 aws-rcsstg-sip-proxy-i-
> b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core> [socket_info.c:603]:
> grep_sock_info(): grep_sock_info - checking advertise if host==us: 24==13
> && [aws-rcsstg.vvoip.systems] == [52.64.xxx.221] Jul 13 03:18:06 aws-rcsstg-
> sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core>
> [forward.c:448]: check_self(): check_self: host != me
> 
> 
> Kind regards
> 
> Shane Harrison
> Senior Software Engineer
> 
> Imagination Technologies NZ Limited
> Level 2
> 1 Market Grove
> Lower Hutt, 5010
> New Zealand
> 
> PO Box 30-449
> Lower Hutt, 5040
> New Zealand
> 
> Phone: +64 4 890-3681 ext 3361
>