[Spce-user] call drop immediately

Daniel Grotti dgrotti at sipwise.com
Wed Sep 18 05:00:10 EDT 2013


Theo,

do you have another pcap to send to us ?

Daniel



On 09/17/2013 11:07 PM, Theo wrote:
> Hi
> 
> Those headers are now gone and it would appear the size is comfortably
> below 1500 now.
> 
> 
> On Tue, Sep 17, 2013 at 9:22 PM, Lorenzo Mangani
> <lorenzo.mangani at gmail.com <mailto:lorenzo.mangani at gmail.com>> wrote:
> 
>     Hi Theo,
> 
>     Do the packets still reach the peer with the extra headers or were
>     they removed as intended?
> 
> 
>     Best,
> 
>     Lorenzo Mangani
> 
>     HOMER DEV TEAM
>     QXIP - Capture Engineering
> 
> 
> 
>     On Tue, Sep 17, 2013 at 9:11 PM, Theo <axessofficetheo at gmail.com
>     <mailto:axessofficetheo at gmail.com>> wrote:
> 
>         Hi
> 
>         CSI has nothing on us! I have corrected the sems config - the
>         whitelist is back. Applied. I still have the same problem though...
> 
>         Any more thoughts? 
> 
> 
>         On Tue, Sep 17, 2013 at 3:49 PM, Lorenzo Mangani
>         <lorenzo.mangani at gmail.com <mailto:lorenzo.mangani at gmail.com>>
>         wrote:
> 
>             All,
> 
>             A little update on this interesting rabbit-hole case - the
>             following was the result of a CSI:Style intercontinental
>             investigation with the help of Daniel Grotti from sip:wise.
> 
>             The issue Theo was experiencing was surely caused by MTU
>             fragmentation. The MTU fragmentation was caused by the
>             messages being oversize, but the messages were really
>             oversize because still carrying a few SPCE internal headers,
>             not removed due to a previous customization of the sems
>             config in fact disabling is header filtering completely -
>             just to allow Refer messages to pass. 
>             Quite a backlog story for this case! Now the solution to
>             both old and new issues here is clearly to correct SEMS
>             crippled configuration by defining a "header_filter" mode
>             (whitelist)  and extending the "header_list" parameter list
>             with the whole Refer family of headers (or whatever else
>             needed within reason) and let the B2BUA remove all the
>             remaining internal-only headers from the peering sessions.
>             This should bring the situation back to normal as of packet
>             size without impacting any additional functionality.
> 
>             Theo, let us know if this resolved your case,
> 
>             Best,
> 
>             Lorenzo Mangani
> 
>             HOMER DEV TEAM
>             QXIP - Capture Engineering
> 
> 
> 
>             On Tue, Sep 17, 2013 at 8:13 AM, Theo
>             <axessofficetheo at gmail.com
>             <mailto:axessofficetheo at gmail.com>> wrote:
> 
>                 Hi
> 
>                 I have no solution for my problem. Part of this is kept
>                 in private with Andreas because of the info in the log
>                 files. The issue is bizarre as far as I can judge this.
>                 We have 3 providers. In this case each of those transit
>                 calls from a number of carriers which go through to this
>                 one customer. All works fine. EXCEPT for the transit
>                 from carrier 1, through provider A, who also transit for
>                 other carriers, through the same trunk without issues.
>                 The same carrier also sends calls through another
>                 provider without issues. However, calls from carrier 1
>                 through provider A cut after 5 seconds, about 80% of the
>                 time.
> 
>                 ngrep-sip complains about "SIP/2.0 400 missing CSeq
>                 header field'" - but The carrier, nor the provider, nor
>                 me see anything missing. Ngrep-sip from the point of the
>                 invite. I have decided not to worry about the sensitive
>                 details at this point as I have to get this resolved
>                 urgently. I see nothing missing in the invite. What I do
>                 see is, the second last line, that doesn't make sense.
>                 That should be a full domain, but where does that come
>                 from???
> 
>                 Is this an issue on our box? if so, why only with this
>                 particular upstream carrier through this particular
>                 provider. If not, how do I get the other party to fix it?
> 
>                 Thanks for any input
> 
> 
> 
>                 U 2013/09/17 08:07:20.226723 127.0.0.1:5060
>                 <http://127.0.0.1:5060> -> 127.0.0.1:5062
>                 <http://127.0.0.1:5062>
>                 INVITE sip:127.0.0.1:5080 <http://127.0.0.1:5080> SIP/2.0'
>                 Record-Route:
>                 <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;ngcplb=yes;socket=udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>>'
>                 Record-Route:
>                 <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;ngcplb=yes;socket=udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>>'
>                 Route:
>                 <sip:ngcp-lb at 127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;did=3f2.531;mpd=ii;ice_caller=strip;ice_callee=strip;rtpprx=yes;vsf=V3V3Z0VMeGFUOU1OZkthYTonJjQKayohWlMrByZQLi8IKhkEHQdJAThbDQY->'
>                 Via: SIP/2.0/UDP
>                 127.0.0.1;branch=z9hG4bK7239.6843b44cb370e058f995c996d166891a.0'
>                 Via: SIP/2.0/UDP
>                 92.240.1.12;rport=5060;branch=z9hG4bK7239.908cd0b7.0'
>                 Via: SIP/2.0/UDP
>                 92.240.0.12:5083;branch=z9hG4bK685c.a3419e67.0'
>                 From:  <sip:27214482133 at 92.240.1.12
>                 <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODM'
>                 To:  <sip:27110254990 at 196.41.123.113
>                 <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=62DF6E4A-5237F1970000DBD6-69F4A700'
>                 Call-ID:
>                 hs4_bhs6_bSDg3ivb01-4893e0c5872c548cdb6488e80b76e5db-ctvvfv3'
>                 CSeq: 2 INVITE'
>                 Accept:
>                 application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay'
>                 Contact: <sip:27214482133 at 92.240.0.12:5083;transport=udp>'
>                 MIME-Version: 1.0'
>                 Supported: timer,100rel'
>                 Max-Forwards: 63'
>                 Session-Expires: 1800;refresher=uac'
>                 Allow: ACK, INFO, BYE, CANCEL, INVITE, OPTIONS, NOTIFY,
>                 PRACK, UPDATE'
>                 Content-Type: application/sdp'
>                 Content-Length: 234'
>                 P-NGCP-Src-Ip: 92.240.1.12'
>                 P-NGCP-Src-Port: 5060'
>                 P-NGCP-Src-Proto: udp'
>                 P-NGCP-Src-Af: 4'
>                 P-Sock-Info: udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>'
>                 '
>                 v=0'
>                 o=- 2445083187 307757073 IN IP4 92.240.0.61'
>                 s=-'
>                 c=IN IP4 92.240.0.61'
>                 t=0 0'
>                 m=audio 52438 RTP/AVP 18 101'
>                 a=rtpmap:18 G729/8000'
>                 a=fmtp:18 annexb=no'
>                 a=rtpmap:101 telephone-event/8000'
>                 a=fmtp:101 0-15'
>                 a=sendrecv'
>                 a=ptime:60'
> 
>                 #
>                 U 2013/09/17 08:07:20.226832 127.0.0.1:5062
>                 <http://127.0.0.1:5062> -> 127.0.0.1:5060
>                 <http://127.0.0.1:5060>
>                 SIP/2.0 100 Trying'
>                 Via: SIP/2.0/UDP
>                 127.0.0.1;branch=z9hG4bK7239.6843b44cb370e058f995c996d166891a.0'
>                 Via: SIP/2.0/UDP
>                 92.240.1.12;rport=5060;branch=z9hG4bK7239.908cd0b7.0'
>                 Via: SIP/2.0/UDP
>                 92.240.0.12:5083;branch=z9hG4bK685c.a3419e67.0'
>                 From:  <sip:27214482133 at 92.240.1.12
>                 <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODM'
>                 To:  <sip:27110254990 at 196.41.123.113
>                 <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=62DF6E4A-5237F1970000DBD6-69F4A700'
>                 Call-ID:
>                 hs4_bhs6_bSDg3ivb01-4893e0c5872c548cdb6488e80b76e5db-ctvvfv3'
>                 CSeq: 2 INVITE'
>                 P-Out-Socket: udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>'
>                 Server: Sipwise NGCP Proxy 2.X'
>                 Content-Length: 0'
>                 '
> 
>                 #
>                 U 2013/09/17 08:07:20.227036 196.41.123.113:5060
>                 <http://196.41.123.113:5060> -> 92.240.1.12:5060
>                 <http://92.240.1.12:5060>
>                 SIP/2.0 100 Trying'
>                 Via: SIP/2.0/UDP
>                 92.240.1.12;rport=5060;branch=z9hG4bK7239.908cd0b7.0'
>                 Via: SIP/2.0/UDP
>                 92.240.0.12:5083;branch=z9hG4bK685c.a3419e67.0'
>                 From:  <sip:27214482133 at 92.240.1.12
>                 <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODM'
>                 To:  <sip:27110254990 at 196.41.123.113
>                 <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=62DF6E4A-5237F1970000DBD6-69F4A700'
>                 Call-ID:
>                 hs4_bhs6_bSDg3ivb01-4893e0c5872c548cdb6488e80b76e5db-ctvvfv3'
>                 CSeq: 2 INVITE'
>                 Server: Sipwise NGCP Proxy 2.X'
>                 Content-Length: 0'
>                 '
> 
>                 #
>                 U 2013/09/17 08:07:20.227510 127.0.0.1:5062
>                 <http://127.0.0.1:5062> -> 127.0.0.1:5060
>                 <http://127.0.0.1:5060>
>                 SIP/2.0 400 missing CSeq header field'
>                 Record-Route:
>                 <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>'
>                 Record-Route:
>                 <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;ngcplb=yes;socket=udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>>'
>                 Record-Route:
>                 <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODM;ngcplb=yes;socket=udp:196.41.123.113:5060
>                 <http://196.41.123.113:5060>>'
>                 Via: SIP/2.0/UDP
>                 127.0.0.1;branch=z9hG4bK7239.6843b44cb370e058f995c996d166891a.0'
>                 Via: SIP/2.0/UDP
>                 92.240.1.12;rport=5060;branch=z9hG4bK7239.908cd0b7.0'
>                 Via: SIP/2.0/UDP
>                 92.240.0.12:5083;branch=z9hG4bK685c.a3419e67.0'
>                 From: <sip:27214482133 at maodi.sw1.a]''''S'''
>                 Content-Length: 0'
>                 '
> 
> 
> 
> 
> 
>                 On Fri, Sep 13, 2013 at 4:28 PM, Theo
>                 <axessofficetheo at gmail.com
>                 <mailto:axessofficetheo at gmail.com>> wrote:
> 
>                     I starting to think this is a problem on my box.
>                     However, it ONLY does it with this client and ONLY
>                     from one upstream provider who route calls to us
>                     from various carriers. It only happens with calls
>                     from one carrier. From the sems log I have made the
>                     line below in BOLD. that should read
>                     @maodi.sw1.africanaxess.co.za
>                     <http://maodi.sw1.africanaxess.co.za>. It does on
>                     the first invite. Where does this change into the
>                     mangled part??? And why only on calls through one
>                     provider from one carrier specifically.
> 
> 
> 
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [parse_sip_uri, parse_uri.cpp:332] DEBUG: Converted
>                     URI port (5080) to int (5080)
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [parse_headers, parse_header.cpp:391] DEBUG: Illegal
>                     CR or LF in header name
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [received_msg, trans_layer.cpp:1093] DEBUG:
>                     parse_sip_msg returned -5
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [received_msg, trans_layer.cpp:1099] DEBUG: parsing
>                     error: missing CSeq header field
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [received_msg, trans_layer.cpp:1101] DEBUG: Message
>                     was: "INVITE sip:127.0.0.1:5080
>                     <http://127.0.0.1:5080> SIP/2.0#015#012Record-Route:
>                     <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>#015#012Record-Route:
>                     <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Record-Route:
>                     <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1:5062;branch=z9hG4bKdf2f.16949b1e10816e7aeabf87354bed5bba.0#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1;branch=z9hG4bKdf2f.7bc23c3315f2e5d9705a33335a27931e.0#015#012*Via:
>                     SIP/2.0/UDP
>                     92.240.1.13;rport=5060;branch=z9hG4bKdf2f.584bf716.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.0.12:5081;branch=z9hG4bKbb6b.792a931.0#015#012From:
>                      <sip:27214482133 at maodi.sw1.a]#007#032#006#023S#021#020#012#035#026.co.za
>                     <http://026.co.za>*>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODE#015#012To:
>                      <sip:27110254990 at 196.41.123.113
>                     <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=580524BE-52331AAE00079EFB-69F4A700#015#012Call-ID:
>                     hs4_bhs6_bSDdbf7b01-fb9203bf7ff514193081e8be537bc659-ctvvfv3#015#012CSeq:
>                     2 INVITE#015#012Accept:
>                     application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay#015#012Contact:
>                     <sip:27214482133 at 92.240.0.12:5081;transport=udp>#015#012MIME-Version:
>                     1.0#015#012Supported:
>                     timer,100rel#015#012Max-Forwards:
>                     62#015#012Session-Expires:
>                     1800;refresher=uac#015#012Allow: ACK, INFO, BYE,
>                     CANCEL, INVITE, OPTIONS, NOTIFY, PRACK,
>                     UPDATE#015#012Content-Type:
>                     application/sdp#015#012Content-Length:
>                     254#015#012#015#012v=0#015#012o=- 4048552998
>                     309592175 IN IP4
>                     196.41.123.113#015#012s=-#015#012c=IN IP4
>                     196.41.123.113#015#012t=0 0#015#012m=audio 31636
>                     RTP/AVP 18 101#015#012a=rtpmap:18
>                     G729/8000#015#012a=fmtp:18
>                     annexb=no#015#012a=rtpmap:101
>                     telephone-event/8000#015#012a=fmtp:101
>                     0-15#015#012a=sendrecv#015#012a=ptime:60#015#012a=rtcp:31637#015#012"
>                     Sep 13 16:01:18 sipwise sems[2424]: [#7ffb69f4a700]
>                     [send, transport.cpp:98] DEBUG: send
>                      msg#012--++--#012SIP/2.0 400 missing CSeq header
>                     field#015#012Record-Route:
>                     <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>#015#012Record-Route:
>                     <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Record-Route:
>                     <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1:5062;branch=z9hG4bKdf2f.16949b1e10816e7aeabf87354bed5bba.0#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1;branch=z9hG4bKdf2f.7bc23c3315f2e5d9705a33335a27931e.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.1.13;rport=5060;branch=z9hG4bKdf2f.584bf716.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.0.12:5081;branch=z9hG4bKbb6b.792a931.0#015#012From:
>                     <sip:27214482133 at maodi.sw1.a]#007#032#006#023S#021#020#015#012Content-Length:
>                     0#015#012#015#012--++--
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [run, udp_trsp.cpp:213] DEBUG: vv M [|] u recvd msg
>                     via UDP vv#012--++--#012INVITE sip:127.0.0.1:5080
>                     <http://127.0.0.1:5080> SIP/2.0#015#012Record-Route:
>                     <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>#015#012Record-Route:
>                     <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Record-Route:
>                     <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1:5062;branch=z9hG4bKdf2f.16949b1e10816e7aeabf87354bed5bba.0#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1;branch=z9hG4bKdf2f.7bc23c3315f2e5d9705a33335a27931e.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.1.13;rport=5060;branch=z9hG4bKdf2f.584bf716.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.0.12:5081;branch=z9hG4bKbb6b.792a931.0#015#012From:
>                      <sip:27214482133 at maodi.sw1.a]#007#032#006#023S#021#020#012#035#026.co.za
>                     <http://026.co.za>>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODE#015#012To:
>                      <sip:27110254990 at 196.41.123.113
>                     <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=580524BE-52331AAE00079EFB-69F4A700#015#012Call-ID:
>                     hs4_bhs6_bSDdbf7b01-fb9203bf7ff514193081e8be537bc659-ctvvfv3#015#012CSeq:
>                     2 INVITE#015#012Accept:
>                     application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay#015#012Contact:
>                     <sip:27214482133 at 92.240.0.12:5081;transport=udp>#015#012MIME-Version:
>                     1.0#015#012Supported:
>                     timer,100rel#015#012Max-Forwards:
>                     62#015#012Session-Expires:
>                     1800;refresher=uac#015#012Allow: ACK, INFO, BYE,
>                     CANCEL, INVITE, OPTIONS, NOTIFY, PRACK,
>                     UPDATE#015#012Content-Type:
>                     application/sdp#015#012Content-Length:
>                     254#015#012#015#012v=0#015#012o=- 4048552998
>                     309592175 IN IP4
>                     196.41.123.113#015#012s=-#015#012c=IN IP4
>                     196.41.123.113#015#012t=0 0#015#012m=audio 31636
>                     RTP/AVP 18 101#015#012a=rtpmap:18
>                     G729/8000#015#012a=fmtp:18
>                     annexb=no#015#012a=rtpmap:101
>                     telephone-event/8000#015#012a=fmtp:101
>                     0-15#015#012a=sendrecv#015#012a=ptime:60#015#012a=rtcp:31637#015#012--++--
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [parse_sip_uri, parse_uri.cpp:332] DEBUG: Converted
>                     URI port (5080) to int (5080)
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [parse_headers, parse_header.cpp:391] DEBUG: Illegal
>                     CR or LF in header name
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [received_msg, trans_layer.cpp:1093] DEBUG:
>                     parse_sip_msg returned -5
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [received_msg, trans_layer.cpp:1099] DEBUG: parsing
>                     error: missing CSeq header field
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [received_msg, trans_layer.cpp:1101] DEBUG: Message
>                     was: "INVITE sip:127.0.0.1:5080
>                     <http://127.0.0.1:5080> SIP/2.0#015#012Record-Route:
>                     <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>#015#012Record-Route:
>                     <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Record-Route:
>                     <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEyOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                     <http://196.41.123.113:5060>>#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1:5062;branch=z9hG4bKdf2f.16949b1e10816e7aeabf87354bed5bba.0#015#012Via:
>                     SIP/2.0/UDP
>                     127.0.0.1;branch=z9hG4bKdf2f.7bc23c3315f2e5d9705a33335a27931e.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.1.13;rport=5060;branch=z9hG4bKdf2f.584bf716.0#015#012Via:
>                     SIP/2.0/UDP
>                     92.240.0.12:5081;branch=z9hG4bKbb6b.792a931.0#015#012From:
>                      <sip:27214482133 at maodi.sw1.a]#007#032#006#023S#021#020#012#035#026.co.za
>                     <http://026.co.za>>;tag=KmsqOjkyLjI0MC4wLjEyOjUwODE#015#012To:
>                      <sip:27110254990 at 196.41.123.113
>                     <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=580524BE-52331AAE00079EFB-69F4A700#015#012Call-ID:
>                     hs4_bhs6_bSDdbf7b01-fb9203bf7ff514193081e8be537bc659-ctvvfv3#015#012CSeq:
>                     2 INVITE#015#012Accept:
>                     application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay#015#012Contact:
>                     <sip:27214482133 at 92.240.0.12:5081;transport=udp>#015#012MIME-Version:
>                     1.0#015#012Supported:
>                     timer,100rel#015#012Max-Forwards:
>                     62#015#012Session-Expires:
>                     1800;refresher=uac#015#012Allow: ACK, INFO, BYE,
>                     CANCEL, INVITE, OPTIONS, NOTIFY, PRACK,
>                     UPDATE#015#012Content-Type:
>                     application/sdp#015#012Content-Length:
>                     254#015#012#015#012v=0#015#012o=- 4048552998
>                     309592175 IN IP4
>                     196.41.123.113#015#012s=-#015#012c=IN IP4
>                     196.41.123.113#015#012t=0 0#015#012m=audio 31636
>                     RTP/AVP 18 101#015#012a=rtpmap:18
>                     G729/8000#015#012a=fmtp:18
>                     annexb=no#015#012a=rtpmap:101
>                     telephone-event/8000#015#012a=fmtp:101
>                     0-15#015#012a=sendrecv#015#012a=ptime:60#015#012a=rtcp:31637#015#012"
>                     Sep 13 16:01:19 sipwise sems[2424]: [#7ffb69e49700]
>                     [send, transport.cpp:98] DEBUG: send
>                      msg#012--++--#012SIP/2
> 
> 
>                     On Fri, Sep 13, 2013 at 1:00 PM, Theo
>                     <axessofficetheo at gmail.com
>                     <mailto:axessofficetheo at gmail.com>> wrote:
> 
>                         Hi Andreas,
> 
>                         Apologies for keeping this off list - once I've
>                         figured out the problem and if worth it for
>                         other people I will post the correct solution
>                         here. I have in the meantime figured out WHY the
>                         call is dropping, and you were spot on with the
>                         missing CSeq header field. This is a snippet of
>                         a dropped call and clearly we are sending back
>                         the SIP/2.0 400 missing CSeq header field'. What
>                         I just cannot figure out is, WHAT is missing
>                         exactly. The upstream guys are saying "nothing
>                         is missing". 
> 
>                         I do see From:
>                         <sip:27214482133 at maodi.sw1.a]''''S''' which is
>                         worrying. this should be
>                         maodi.sw1.africanaxess.co.za
>                         <http://maodi.sw1.africanaxess.co.za> which is
>                         the domain associated with this customer.
> 
>                         U 2013/09/13 11:58:07.520589 92.240.1.12:5060
>                         <http://92.240.1.12:5060> -> 196.41.123.113:5060
>                         <http://196.41.123.113:5060>
> 
>                         INVITE sip:ngcp-lb at 196.41.123.113
>                         <mailto:sip%3Angcp-lb at 196.41.123.113>;ngcpct=c2lwOjEyNy4wLjAuMTo1MDgw
>                         SIP/2.0'
> 
>                         Route: <sip:ngcp-lb at 196.41.123.113
>                         <mailto:sip%3Angcp-lb at 196.41.123.113>;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>,
>                         <sip:ngcp-lb at 127.0.0.1
>                         <mailto:sip%3Angcp-lb at 127.0.0.1>;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>,
>                         <sip:ngcp-lb at 127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;did=63b.e412;mpd=ii;ice_caller=strip;ice_callee=strip;rtpprx=yes;vsf=V3V3Z0VMeGFUOU1OZkthYTonJjQKayohWlMrByZQLi8IKhkEHQdJAThbDQY->'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.1.12;branch=z9hG4bKa6b5.0d018653.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.0.13:5081;branch=z9hG4bKf784.ce567e76.0'
> 
>                         From:  <sip:27214482133 at 92.240.1.12
>                         <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEzOjUwODE'
> 
>                         To:  <sip:27110254990 at 196.41.123.113
>                         <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=3D4A701D-5232E1AF0004AA9D-69F4A700'
> 
>                         Call-ID:
>                         hs4_bhs6_bSDtqpbc01-50b38cb585afe88c67431dd52af8b9dd-ctvvfv3'
> 
>                         CSeq: 2 INVITE'
> 
>                         Accept:
>                         application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay'
> 
>                         Contact:
>                         <sip:27214482133 at 92.240.0.13:5081;transport=udp>'
> 
>                         MIME-Version: 1.0'
> 
>                         Supported: timer,100rel'
> 
>                         Max-Forwards: 64'
> 
>                         Session-Expires: 1800;refresher=uac'
> 
>                         Allow: ACK, INFO, BYE, CANCEL, INVITE, OPTIONS,
>                         NOTIFY, PRACK, UPDATE'
> 
>                         Content-Type: application/sdp'
> 
>                         Content-Length: 235'
> 
>                         '
> 
>                         v=0'
> 
>                         o=- 3522956930 <tel:3522956930> 307888210 IN IP4
>                         92.240.0.62'
> 
>                         s=-'
> 
>                         c=IN IP4 92.240.0.62'
> 
>                         t=0 0'
> 
>                         m=audio 51314 RTP/AVP 18 101'
> 
>                         a=rtpmap:18 G729/8000'
> 
>                         a=fmtp:18 ann
> 
>                         #
> 
>                         U 2013/09/13 11:58:07.520787 127.0.0.1:5060
>                         <http://127.0.0.1:5060> -> 127.0.0.1:5062
>                         <http://127.0.0.1:5062>
> 
>                         INVITE sip:127.0.0.1:5080
>                         <http://127.0.0.1:5080> SIP/2.0'
> 
>                         Record-Route:
>                         <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>'
> 
>                         Record-Route:
>                         <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>'
> 
>                         Route:
>                         <sip:ngcp-lb at 127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;did=63b.e412;mpd=ii;ice_caller=strip;ice_callee=strip;rtpprx=yes;vsf=V3V3Z0VMeGFUOU1OZkthYTonJjQKayohWlMrByZQLi8IKhkEHQdJAThbDQY->'
> 
>                         Via: SIP/2.0/UDP
>                         127.0.0.1;branch=z9hG4bKa6b5.242fbc2bf219d6f43d00babcdc3c29f3.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.1.12;rport=5060;branch=z9hG4bKa6b5.0d018653.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.0.13:5081;branch=z9hG4bKf784.ce567e76.0'
> 
>                         From:  <sip:27214482133 at 92.240.1.12
>                         <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEzOjUwODE'
> 
>                         To:  <sip:27110254990 at 196.41.123.113
>                         <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=3D4A701D-5232E1AF0004AA9D-69F4A700'
> 
>                         Call-ID:
>                         hs4_bhs6_bSDtqpbc01-50b38cb585afe88c67431dd52af8b9dd-ctvvfv3'
> 
>                         CSeq: 2 INVITE'
> 
>                         Accept:
>                         application/sdp,application/isup,multipart/mixed,application/vnd.siemens.key-event,application/vnd.siemens.surpass,application/dtmf-relay'
> 
>                         Contact:
>                         <sip:27214482133 at 92.240.0.13:5081;transport=udp>'
> 
>                         MIME-Version: 1.0'
> 
>                         Supported: timer,100rel'
> 
>                         Max-Forwards: 63'
> 
>                         Session-Expires: 1800;refresher=uac'
> 
>                         Allow: ACK, INFO, BYE, CANCEL, INVITE, OPTIONS,
>                         NOTIFY, PRACK, UPDATE'
> 
>                         Content-Type: application/sdp'
> 
>                         Content-Length: 235'
> 
>                         P-NGCP-Src-Ip: 92.240.1.12'
> 
>                         P-NGCP-Src-Port: 5060'
> 
>                         P-NGCP-Src-Proto: udp'
> 
>                         P-NGCP-Src-Af: 4'
> 
>                         P-Sock-Info: udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>'
> 
>                         '
> 
>                         v=0'
> 
>                         o=- 3522956930 <tel:3522956930> 307888210 IN IP4
>                         92.240.0.62'
> 
>                         s=-'
> 
>                         c=IN IP4 92.240.0.62'
> 
>                         t=0 0'
> 
>                         m=audio 51314 RTP/AVP 18 101'
> 
>                         a=rtpmap:18 G729/8000'
> 
>                         a=fmtp:18 annexb=no'
> 
>                         a=rtpmap:101 telephone-event/8000'
> 
>                         a=fmtp:101 0-15'
> 
>                         a=sendrecv'
> 
>                         a=pmft: T38'
> 
> 
>                         #
> 
>                         U 2013/09/13 11:58:07.520906 127.0.0.1:5062
>                         <http://127.0.0.1:5062> -> 127.0.0.1:5060
>                         <http://127.0.0.1:5060>
> 
>                         SIP/2.0 100 Trying'
> 
>                         Via: SIP/2.0/UDP
>                         127.0.0.1;branch=z9hG4bKa6b5.242fbc2bf219d6f43d00babcdc3c29f3.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.1.12;rport=5060;branch=z9hG4bKa6b5.0d018653.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.0.13:5081;branch=z9hG4bKf784.ce567e76.0'
> 
>                         From:  <sip:27214482133 at 92.240.1.12
>                         <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEzOjUwODE'
> 
>                         To:  <sip:27110254990 at 196.41.123.113
>                         <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=3D4A701D-5232E1AF0004AA9D-69F4A700'
> 
>                         Call-ID:
>                         hs4_bhs6_bSDtqpbc01-50b38cb585afe88c67431dd52af8b9dd-ctvvfv3'
> 
>                         CSeq: 2 INVITE'
> 
>                         P-Out-Socket: udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>'
> 
>                         Server: Sipwise NGCP Proxy 2.X'
> 
>                         Content-Length: 0'
> 
>                         '
> 
> 
>                         #
> 
>                         U 2013/09/13 11:58:07.521217 196.41.123.113:5060
>                         <http://196.41.123.113:5060> -> 92.240.1.12:5060
>                         <http://92.240.1.12:5060>
> 
>                         SIP/2.0 100 Trying'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.1.12;rport=5060;branch=z9hG4bKa6b5.0d018653.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.0.13:5081;branch=z9hG4bKf784.ce567e76.0'
> 
>                         From:  <sip:27214482133 at 92.240.1.12
>                         <mailto:sip%3A27214482133 at 92.240.1.12>;user=phone>;tag=KmsqOjkyLjI0MC4wLjEzOjUwODE'
> 
>                         To:  <sip:27110254990 at 196.41.123.113
>                         <mailto:sip%3A27110254990 at 196.41.123.113>;user=phone>;tag=3D4A701D-5232E1AF0004AA9D-69F4A700'
> 
>                         Call-ID:
>                         hs4_bhs6_bSDtqpbc01-50b38cb585afe88c67431dd52af8b9dd-ctvvfv3'
> 
>                         CSeq: 2 INVITE'
> 
>                         Server: Sipwise NGCP Proxy 2.X'
> 
>                         Content-Length: 0'
> 
>                         '
> 
> 
>                         #
> 
>                         U 2013/09/13 11:58:07.521712 127.0.0.1:5062
>                         <http://127.0.0.1:5062> -> 127.0.0.1:5060
>                         <http://127.0.0.1:5060>
> 
>                         SIP/2.0 400 missing CSeq header field'
> 
>                         Record-Route:
>                         <sip:127.0.0.1:5062;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;rtpprx=yes;ice_callee=strip;ice_caller=strip;mpd=ii>'
> 
>                         Record-Route:
>                         <sip:127.0.0.1;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>'
> 
>                         Record-Route:
>                         <sip:196.41.123.113;r2=on;lr=on;ftag=KmsqOjkyLjI0MC4wLjEzOjUwODE;ngcplb=yes;socket=udp:196.41.123.113:5060
>                         <http://196.41.123.113:5060>>'
> 
>                         Via: SIP/2.0/UDP
>                         127.0.0.1;branch=z9hG4bKa6b5.242fbc2bf219d6f43d00babcdc3c29f3.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.1.12;rport=5060;branch=z9hG4bKa6b5.0d018653.0'
> 
>                         Via: SIP/2.0/UDP
>                         92.240.0.13:5081;branch=z9hG4bKf784.ce567e76.0'
> 
>                         From: <sip:27214482133 at maodi.sw1.a]''''S'''
> 
>                         Content-Length: 0'
> 
>                         '
> 
> 
> 
>                         On Tue, Sep 10, 2013 at 2:43 PM, Theo
>                         <axessofficetheo at gmail.com
>                         <mailto:axessofficetheo at gmail.com>> wrote:
> 
>                             Hi
> 
>                             Any idea why the tcpdump get mangled when
>                             saving to a file?
> 
>                             ?E???#@??){q)?3???i?SIP/2.0 200 OK
> 
>                             for example? when watching it in real-time
>                             it looks fine
> 
> 
>                             On Tue, Sep 10, 2013 at 1:33 PM, Theo
>                             <axessofficetheo at gmail.com
>                             <mailto:axessofficetheo at gmail.com>> wrote:
> 
>                                 Hi
> 
>                                 Homer is on my list of things :-)
>                                 Lorenzo has been telling how great it is.
> 
>                                 I didn't see that in the log, but mainly
>                                 because of ignorance. For example, I
>                                 have no idea what a CSeq header field
>                                 is, but straight after this mail i will
>                                 consult my friend google on that one. I
>                                 will run the tcpdump and wait for more
>                                 examples.
> 
>                                 And speed up my homer box I guess.
> 
> 
>                                 On Tue, Sep 10, 2013 at 1:03 PM, Andreas
>                                 Granig <agranig at sipwise.com
>                                 <mailto:agranig at sipwise.com>> wrote:
> 
>                                     Hi,
> 
>                                     Did you recognize the "SIP/2.0 400
>                                     missing CSeq header field" in the
>                                     sems log? Seems like there is quite
>                                     a lot broken with the clients
>                                     involved here.
> 
>                                     I think the only way to pin it down
>                                     exactly is to do something like
> 
>                                             tcpdump -i any -s 0 -w
>                                     /path/to/trace.pcap host xxx.xxx.xxx.xxx
> 
>                                     where xxx.xxx.xxx.xxx is this
>                                     asterisk box to get a clear overview
>                                     of what's going on. Another (better)
>                                     way to troubleshoot this stuff post
>                                     mortem is to install Homer, so
>                                     you're able to analyze call flows
>                                     which happened in the past.
> 
>                                     Andreas
> 
> 
>                                     On 09/10/2013 12:54 PM, Andreas
>                                     Granig wrote:
> 
>                                         Hi,
> 
>                                         On 09/10/2013 12:42 PM, Theo wrote:
> 
>                                             Sep 10 11:16:06 sipwise
>                                             /usr/sbin/kamailio[1971]:
>                                             INFO: <script>: New
>                                             request - M=BYE
>                                             R=sip:ngcp-lb at 196.41.123.113
>                                             <mailto:sip%3Angcp-lb at 196.41.123.113>
>                                             <mailto:sip%3Angcp-lb at 196.41.__123.113
>                                             <mailto:sip%253Angcp-lb at 196.41.123.113>>
>                                             F=sip:27219763939 at 92.240.1.12 <mailto:sip%3A27219763939 at 92.240.1.12>
>                                             <mailto:sip%3A27219763939 at 92.__240.1.12
>                                             <mailto:sip%253A27219763939 at 92.240.1.12>>
>                                             T=sip:27214235154 at 196.41.123.__113
>                                             <mailto:sip%3A27214235154 at 196.41.123.113>
>                                             <mailto:sip%3A27214235154 at 196.__41.123.113
>                                             <mailto:sip%253A27214235154 at 196.41.123.113>>
>                                             IP=udp:92.240.1.12:5060
>                                             <http://92.240.1.12:5060>
>                                             <http://92.240.1.12:5060>
>                                             ID=hs4_bhs6_bSDh3kvb01-__12c39d503671664b04bbf109d85784__78-ctvvfv3
> 
>                                             In this case, which party
>                                             tore the call down?
> 
> 
>                                         In this case, the IP 92.240.1.12
>                                         sent the BYE (look for IP=xxxx)
>                                         in the
>                                         log line.
> 
>                                         I think you're actually running
>                                         into an end-to-end media negotiation
>                                         issue. Caller sends SDP offer,
>                                         the callee sends the answer, and the
>                                         caller is not happy with it and
>                                         sends the BYE. Just a wild
>                                         guess, need
>                                         to check the logs in detail.
> 
>                                         Andreas
> 
> 
> 
> 
> 
> 
> 
>                 _______________________________________________
>                 Spce-user mailing list
>                 Spce-user at lists.sipwise.com
>                 <mailto:Spce-user at lists.sipwise.com>
>                 http://lists.sipwise.com/listinfo/spce-user
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
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> 




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