[Spce-user] "400 Bad Request" from SEMS

[Carsten Bock]

Hi Andreas,

thanks for the hint, it works, great!

Carsten

2011/5/14 Andreas Granig <agranig at sipwise.com>:
> Hi Carsten,
>
> This is actually a known and fixed issue, and I wanted to push it to the
> public repo for anyone to upgrade next week (beside some more Sems
> authentication fixes).
>
> It's because Sems uses P-D-Uri as outbound proxy, so it should actually
> be set to the load-balancer (sip:127.0.0.1:5060) instead of the Sipgate
> Uri. In your case, it tries to send it directly to Sipgate instead of
> going via the lb, but it can't since it binds to localhost only.
>
> You can manually work around this issue in the meanwhile by setting the
> above Uri hard-coded in
> /etc/ngcp-config/templates/etc/sems/etc/ngcp.sbcprofile.conf.tt2 (iirc)
> in your outbound_proxy line, then execute "ngcpcfg apply".
>
> Andreas
>
> On 05/14/2011 10:37 AM, Carsten Bock wrote:
>> Hi,
>>
>> i've defined the following rule for my outbound gateway:
>>
>>> Outbound Rewrite Rules for Callee
>>> Match Pattern: ^49([1-9][0-9]+)$
>>> Replacement Pattern: 0\1
>>
>> Just for testing and showing SPCE to other people, i use Sipgate as a
>> termination, so i need to rewrite the Request URI.
>>
>> From the Signalling between Kamailio and SEMS, this looks fine:
>>
>> U 2011/05/13 23:04:16.777525 127.0.0.1:5062 -> 127.0.0.1:5080
>> INVITE sip:b2b-0179332021244 at 217.10.79.9:5060 SIP/2.0.
>> Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=552500b2;did=a3b.dc169f91;vsf=YXE0Rmw1HxgCPzJHcy0bXlE3Wwxsd1FoVAw1>.
>> Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=552500b2;nat=yes>.
>> Record-Route: <sip:46.252.21.133;r2=on;lr=on;ftag=552500b2;nat=yes>.
>> Call-ID: e80385e11f0368c6879ad059e9b036dd at 0:0:0:0:0:0:0:0.
>> CSeq: 2 INVITE.
>> From: "494010003" <sip:1234 at sipgate.de>;tag=552500b2.
>> To: <sip:0179332021244 at sip.ng-voice.com>.
>> Max-Forwards: 68.
>> Contact: "laptop"
>> <sip:laptop at 89.204.137.72:52642;transport=udp;registering_acc=sip_ng-voice_com>.
>> User-Agent: Jitsi1.0-beta1-nightly.build.3467Linux.
>> Content-Type: application/sdp.
>> Via: SIP/2.0/UDP
>> 127.0.0.1:5062;branch=z9hG4bKe6b3.868b5de4bfcbb1bffdf894e5fecd1336.0.
>> Via: SIP/2.0/UDP 127.0.0.1;rport=5060;branch=z9hG4bKe6b3.aca5aa26.0.
>> Via: SIP/2.0/UDP
>> 192.168.1.100:5060;rport=52642;received=89.204.137.72;branch=z9hG4bK-333635-a78044d8e518e84604006f4879038fe2.
>> Content-Length: 894.
>> P-App-Param: u=1234;d=sipgate.de;p=xxx.
>> P-Asserted-Identity: <sip:494010003 at sip.ng-voice.com>.
>> P-R-Uri: sip:0179332021244 at 217.10.79.9:5060
>> P-D-Uri: sip:49179332021244 at 217.10.79.9:5060
>>
>> But SEMS replies with an "400 Bad Request":
>>
>> U 2011/05/13 23:04:16.778291 127.0.0.1:5080 -> 127.0.0.1:5062
>> SIP/2.0 400 Bad Request.
>> Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=552500b2;did=a3b.dc169f91;vsf=YXE0Rmw1HxgCPzJHcy0bXlE3Wwxsd1FoVAw1>.
>> Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=552500b2;nat=yes>.
>> Record-Route: <sip:46.252.21.133;r2=on;lr=on;ftag=552500b2;nat=yes>.
>> Call-ID: e80385e11f0368c6879ad059e9b036dd at 0:0:0:0:0:0:0:0.
>> CSeq: 2 INVITE.
>> From: "494010003" <sip:1234 at sipgate.de>;tag=552500b2.
>> To: <sip:0179332021244 at sip.ng-voice.com>;tag=3B6DADA6-4DCD9CD0000BDE2B-8F5F5700.
>> Via: SIP/2.0/UDP
>> 127.0.0.1:5062;branch=z9hG4bKe6b3.868b5de4bfcbb1bffdf894e5fecd1336.0;received=127.0.0.1.
>> Via: SIP/2.0/UDP 127.0.0.1;rport=5060;branch=z9hG4bKe6b3.aca5aa26.0.
>> Via: SIP/2.0/UDP
>> 192.168.1.100:5060;rport=52642;received=89.204.137.72;branch=z9hG4bK-333635-a78044d8e518e84604006f4879038fe2.
>> Content-Length: 0.
>>
>> From the SEMS-Log:
>>
>> May 13 23:04:16 (none) sems[2162]: [#7fd58fcfc700] [send,
>> transport.cpp:113] ERROR: sendto: Invalid argument
>> May 13 23:04:16 (none) sems[2162]: [#7fd58fcfc700] [send_request,
>> trans_layer.cpp:897] ERROR: Error from transport layer
>> May 13 23:04:16 (none) sems[2162]: [#7fd58f7f7700] [handleSipMsg,
>> AmSipDispatcher.cpp:81] WARNING: received ACK for non-existing dialog
>> (callid=e80385e11f0368c6879ad059e9b036dd at 0:0:0:0:0:0:0:0;remote_tag=552500b2;local_tag=3B6DADA6-4DCD9CD0000BDE2B-8F5F5700)
>>
>> If i remove this rule, it works.
>> Probably only a tiny issue....
>>
>>
>
>
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-- 
Carsten Bock
http://www.ng-voice.com
mailto:carsten at ng-voice.com

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