New subject: [Serusers] Record-Route Questions

20 Nov 2003

Thanks, Jan....

1. When you say the BYE is missing the Route header field of ser, I'm not
sure I follow.
The BYE from our softswitch (packet 17) looks like this..

BYE sip:6037534033@10.16.1.218 SIP/2.0 
Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
CSeq: 53 BYE 
Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
Max-Forwards: 10 
Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   Content-Length: 0 

Is this part not correct?  ==>	Route:
<sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...

-----Original Message-----
From: Jan Janak [mailto:jan@iptel.org]
Sent: Thursday, November 20, 2003 5:16 PM
To: Garey, Tim
Cc: &#39;serusers(a)lists.iptel.org&#39;
Subject: Re: [Serusers] Record-Route Questions

Hello,

there are two problems:

1) BYE sent by the softswitch is missing Route header field of ser.
2) You configuration script should contain t_relay() as the last
   command. Without that it will drop all requests that don't have IP or
   domain of SER server in the Request-URI which probably isn't what you
   want.

BTW: The message below is an excellent problem report ! It contains all
the necesarry information in clear form and it is quite easy to quickly
locate the problem.

   Jan.

On 20-11 16:52, Garey, Tim wrote:
...
  Hello,

 Using ser 0.8.11 with redhat 9. I am not using mysql or authentication.

 The record-route call I'm making almost works, except for SER not passing
 BYE's from our softswitch. I don't see why SER is blocking these. The ACK
 is correctly following the record-route logic, the BYE looks like it is but
...
  SER is
 blocking passage. sip_scenario trace and ser.cfg routing logic are pasted
 here
 but the full sip_scenario file with packet contents are attached as a file. 
...

 I don't see anything wrong with how the record-route and route headers are
 being used.
 Please help!

 Thank you  VERY much !!! This group is terrific.

 Tim

 Attached file has sip_scenario trace

 10.16.1.218 6037534033 is SER registered phone who initiates call
 10.16.1.147 is SER
 172.17.4.102 is our softswitch acting as back2back user agent.
 10.16.1.214 6032251114 is softswitch registered phone answers/terminates
 call.

 10.16.1.218        10.16.1.147        172.17.4.102       10.16.1.214
 |                  |                  |                  |
 <Call><PFrame><Time>
 |                  |                  |                  |
 | F1 INVITE (sdp)  |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 | ant to us 100 F2 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 |                  | F3 INVITE (sdp)  |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |    Trying 100 F4 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |                  | F5 INVITE (sdp)  |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  |                  |   Ringing 180 F6 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |   Ringing 180 F7 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |   Ringing 180 F8 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 |                  |                  |  (sdp) OK 200 F9 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |                  | F10 ACK          |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  | (sdp) OK 200 F11 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 | (sdp) OK 200 F12 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 | F13 ACK          |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 |                  | F14 ACK          |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |                  |          BYE F15 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |                  | F16 200 OK       |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  |          BYE F17 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F18 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F19 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F20 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F21 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F22 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F23 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F24 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 | F25 BYE          |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 |                  | F26 BYE          |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |       OK 200 F27 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |       OK 200 F28 |                  |                  |
 |<----------------<|                  |                  |

 Here is routing logic:

 # main routing logic

 route{

 	# initial sanity checks -- messages with
 	# max_forwards==0, or excessively long requests
 	if (!mf_process_maxfwd_header("10")) {
 		sl_send_reply("483","Too Many Hops");
 		break;
 	};
 	if (len_gt( max_len )) {
 		sl_send_reply("513", "Message too big");
 		break;
 	};

 	if (method=="INVITE") {
 		rewritehostport("172.17.4.102");
 		record_route();
 		t_relay();
 	#	forward (172.17.4.102, 5060);
 	};

 	# we record-route all messages -- to make sure that
 	# subsequent messages will go through our proxy; that's
 	# particularly good if upstream and downstream entities
 	# use different transport protocol
 	#record_route();	

 	# loose-route processing
 	if (loose_route()) {
 		t_relay();
 		break;
 	};

 	# if the request is for other domain use UsrLoc
 	# (in case, it does not work, use the following command
 	# with proper names and addresses in it)
 	if (uri==myself) {

 		if (method=="REGISTER") {

 # Uncomment this if you want to use digest authentication
 #			if (!www_authorize("iptel.org", "subscriber")) {
 #				www_challenge("iptel.org", "0");
 #				break;
 #			};

 			save("location");
 			break;
 		};

 		# native SIP destinations are handled using our USRLOC DB
 		if (!lookup("location")) {
 			sl_send_reply("404", "Not Found");
 			break;
 		};
 	};
 	# forward to current uri now; use stateful forwarding; that
 	# works reliably even if we forward from TCP to UDP
 	#if (!t_relay()) {
 	#	sl_reply_error();
 	#};

 }

  <<rr9.txt>...

...
  Sip Scenario Trace

 File: rr9.dump
 Generated: Thu Nov 20 16:22:21 2003
 Traced on: Thu Nov 20 16:21:14 2003
 Created by:sip_scenario version=1.1.0 

 10.16.1.218        10.16.1.147        172.17.4.102       10.16.1.214
 |                  |                  |                  |
<Call><PFrame><Time>
...
  |                  |                  |               
  |
 | F1 INVITE (sdp)  |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 | ant to us 100 F2 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 |                  | F3 INVITE (sdp)  |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |    Trying 100 F4 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |                  | F5 INVITE (sdp)  |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  |                  |   Ringing 180 F6 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |   Ringing 180 F7 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |   Ringing 180 F8 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 |                  |                  |  (sdp) OK 200 F9 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |                  | F10 ACK          |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  | (sdp) OK 200 F11 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 | (sdp) OK 200 F12 |                  |                  |
 |<----------------<|                  |                  |
 |                  |                  |                  |
 | F13 ACK          |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 |                  | F14 ACK          |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |                  |          BYE F15 |
 |                  |                  |<----------------<|
 |                  |                  |                  |
 |                  |                  | F16 200 OK       |
 |                  |                  |>---------------->|
 |                  |                  |                  |
 |                  |          BYE F17 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F18 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F19 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F20 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F21 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F22 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F23 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |                  |          BYE F24 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 | F25 BYE          |                  |                  |
 |>---------------->|                  |                  |
 |                  |                  |                  |
 |                  | F26 BYE          |                  |
 |                  |>---------------->|                  |
 |                  |                  |                  |
 |                  |       OK 200 F27 |                  |
 |                  |<----------------<|                  |
 |                  |                  |                  |
 |       OK 200 F28 |                  |                  |
 |<----------------<|                  |                  |

 ============================================================================
====
...

      SIP MESSAGE 1        10.16.1.218:5060() -> 10.16.1.147:5060()
      UDP Frame 1        20/Nov/03 16:21:14.8505 TimeFromPreviousSipFrame=0.0000
TimeFromStart=0.0000 
...
  INVITE sip:6032251114@10.16.1.147:5060 SIP/2.0 
 Via: SIP/2.0/UDP 10.16.1.218:5060 
 To: sip:6032251114@10.16.1.147:5060 
 From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
 Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
 CSeq: 232267826 INVITE 
 Supported: timer 
 Min-SE: 5 
 Content-Type: application/sdp 
 Content-Length: 219 
 Contact: 6037534033 <sip:6037534033@10.16.1.218:5060...

 Supported: replaces 

 v=0 
 o=MxSIP 0 758169102 IN IP4 10.16.1.218 
 s=SIP Call 
 c=IN IP4 10.16.1.218 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 4 100 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 
 a=rtpmap:4 G723/8000 
 a=rtpmap:100 telephone-event/8000 

 ============================================================================
====
...

      SIP MESSAGE 2        10.16.1.147:5060() -> 10.16.1.218:5060()
      UDP Frame 2        20/Nov/03 16:21:14.8518 TimeFromPreviousSipFrame=0.0013
TimeFromStart=0.0013 
...
  SIP/2.0 100 trying -- your call is important to us 
 Via: SIP/2.0/UDP 10.16.1.218:5060 
 To: sip:6032251114@10.16.1.147:5060 
 From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
 Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
 CSeq: 232267826 INVITE 
 Server: Sip EXpress router (0.8.11 (i386/linux)) 
 Content-Length: 0 
 Warning: 392 10.16.1.147:5060 "Noisy feedback tells:  pid=32161
req_src_ip=10.16.1.218 req_src_port=5060
in_uri=sip:6032251114@10.16.1.147:5060 out_uri=sip:6032251114@172.17.4.102
via_cnt==1" 
...

 ============================================================================
====
...

      SIP MESSAGE 3        10.16.1.147:5060() -> 172.17.4.102:5060()
      UDP Frame 3        20/Nov/03 16:21:14.8525 TimeFromPreviousSipFrame=0.0007
TimeFromStart=0.0020 
...
  INVITE sip:6032251114@172.17.4.102 SIP/2.0 
 Max-Forwards: 10 
 Record-Route: <sip:6032251114@10.16.1.147;ftag=5c948a53eb3c31b;lr...
    Via: SIP/2.0/UDP
10.16.1.147;branch=z9hG4bK369d.3afcc964.0 
 Via: SIP/2.0/UDP 10.16.1.218:5060 
 To: sip:6032251114@10.16.1.147:5060 
 From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
 Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
 CSeq: 232267826 INVITE 
 Supported: timer 
 Min-SE: 5 
 Content-Type: application/sdp 
 Content-Length: 219 
 Contact: 6037534033 <sip:6037534033@10.16.1.218:5060...

 Supported: replaces 

 v=0 
 o=MxSIP 0 758169102 IN IP4 10.16.1.218 
 s=SIP Call 
 c=IN IP4 10.16.1.218 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 4 100 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 
 a=rtpmap:4 G723/8000 
 a=rtpmap:100 telephone-event/8000 

 ============================================================================
====
...

      SIP MESSAGE 4        172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 4        20/Nov/03 16:21:14.8606 TimeFromPreviousSipFrame=0.0081
TimeFromStart=0.0101 
> SIP/2.0 100 Trying 
> Via: SIP/2.0/UDP 10.16.1.147;branch=z9hG4bK369d.3afcc964.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > CSeq: 232267826 INVITE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
...

 ============================================================================
====
...

      SIP MESSAGE 5        172.17.4.102:5060() -> 10.16.1.214:5060()
      UDP Frame 5        20/Nov/03 16:21:14.8667 TimeFromPreviousSipFrame=0.0062
TimeFromStart=0.0162 
...
  INVITE sip:6032251114@10.16.1.214 SIP/2.0 
 From: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
...
  To: <sip:6032251114@10.16.1.214;user=phone...
    Via: SIP/2.0/UDP
172.17.4.102:5060;branch=z9hG4bKSNCLLC1069790993 
 CSeq: 52 INVITE 
 Contact: sip:6037534033@172.17.4.102:5060 
 Call-ID: 0023639601-0837240850979601-11 
 Max-Forwards: 70 
 Supported: 100rel 
 Allow: REGISTER, INVITE, ACK, BYE, CANCEL, NOTIFY, REFER 
 Content-Type: application/sdp 
 Content-Length: 156 

 v=0 
 o=MxSIP 0 758169102 IN IP4 10.16.1.218 
 s=SIP Call 
 c=IN IP4 10.16.1.218 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 

 ============================================================================
====
...

      SIP MESSAGE 6        10.16.1.214:5060() -> 172.17.4.102:5060()
      UDP Frame 6        20/Nov/03 16:21:15.2762 TimeFromPreviousSipFrame=0.4095
TimeFromStart=0.4257 
...
  SIP/2.0 180 Ringing 
 Call-ID: 0023639601-0837240850979601-11 
 CSeq: 52 INVITE 
 From: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
> To: <sip:6032251114@10.16.1.214;user=phone>;tag=c895ca6b2e9dc6f 
> Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1069790993 
> Content-Length: 0 
> Contact: 6032251114 <sip:6032251114@10.16.1.214:5060...

...

 ============================================================================
====
...

      SIP MESSAGE 7        172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 7        20/Nov/03 16:21:15.2838 TimeFromPreviousSipFrame=0.0076
TimeFromStart=0.4333 
> SIP/2.0 180 Ringing 
> Via: SIP/2.0/UDP 10.16.1.147;branch=z9hG4bK369d.3afcc964.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > CSeq: 232267826 INVITE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Contact: sip:6037534033@172.17.4.102:5060 
...

 ============================================================================
====
...

      SIP MESSAGE 8        10.16.1.147:5060() -> 10.16.1.218:5060()
      UDP Frame 8        20/Nov/03 16:21:15.2847 TimeFromPreviousSipFrame=0.0009
TimeFromStart=0.4342 
> SIP/2.0 180 Ringing 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > CSeq: 232267826 INVITE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Contact: sip:6037534033@172.17.4.102:5060 
...

 ============================================================================
====
...

      SIP MESSAGE 9        10.16.1.214:5060() -> 172.17.4.102:5060()
      UDP Frame 9        20/Nov/03 16:21:18.2880 TimeFromPreviousSipFrame=3.0033
TimeFromStart=3.4375 
...
  SIP/2.0 200 OK 
 Call-ID: 0023639601-0837240850979601-11 
 CSeq: 52 INVITE 
 From: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
...
  To:
<sip:6032251114@10.16.1.214;user=phone>;tag=c895ca6b2e9dc6f 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1069790993 
 Content-Length: 157 
 Content-Type: application/sdp 
 Supported: replaces 
 Contact: 6032251114 <sip:6032251114@10.16.1.214:5060...

 v=0 
 o=MxSIP 0 2025162741 IN IP4 10.16.1.214 
 s=SIP Call 
 c=IN IP4 10.16.1.214 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 

 ============================================================================
====
...

      SIP MESSAGE 10       172.17.4.102:5060() -> 10.16.1.214:5060()
      UDP Frame 10       20/Nov/03 16:21:18.2935 TimeFromPreviousSipFrame=0.0055
TimeFromStart=3.4430 
...
  ACK sip:6032251114@10.16.1.214:5060 SIP/2.0 
 From: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
> To: <sip:6032251114@10.16.1.214;user=phone>;tag=c895ca6b2e9dc6f 
> Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1069790993 
> Max-Forwards: 70 
> CSeq: 52 ACK 
> Call-ID: 0023639601-0837240850979601-11 
> Contact: sip:6037534033@172.17.4.102:5060 
> Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 11       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 11       20/Nov/03 16:21:18.2989 TimeFromPreviousSipFrame=0.0053
TimeFromStart=3.4484 
...
  SIP/2.0 200 OK 
 Via: SIP/2.0/UDP 10.16.1.147;branch=z9hG4bK369d.3afcc964.0 
 Via: SIP/2.0/UDP 10.16.1.218:5060 
 From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
 To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
 Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
    CSeq: 232267826 INVITE 
 Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
 Contact: sip:6037534033@172.17.4.102:5060 
 Allow: REGISTER, INVITE, ACK, BYE, CANCEL, NOTIFY, REFER 
 Content-Type: application/sdp 
 Content-Length: 157 

 v=0 
 o=MxSIP 0 2025162741 IN IP4 10.16.1.214 
 s=SIP Call 
 c=IN IP4 10.16.1.214 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 

 ============================================================================
====
...

      SIP MESSAGE 12       10.16.1.147:5060() -> 10.16.1.218:5060()
      UDP Frame 12       20/Nov/03 16:21:18.3000 TimeFromPreviousSipFrame=0.0012
TimeFromStart=3.4495 
...
  SIP/2.0 200 OK 
 Via: SIP/2.0/UDP 10.16.1.218:5060 
 From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
 To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
 Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
    CSeq: 232267826 INVITE 
 Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
 Contact: sip:6037534033@172.17.4.102:5060 
 Allow: REGISTER, INVITE, ACK, BYE, CANCEL, NOTIFY, REFER 
 Content-Type: application/sdp 
 Content-Length: 157 

 v=0 
 o=MxSIP 0 2025162741 IN IP4 10.16.1.214 
 s=SIP Call 
 c=IN IP4 10.16.1.214 
 t=0 0 
 m=audio 5010 RTP/AVP 0 8 
 a=rtpmap:0 PCMU/8000 
 a=rtpmap:8 PCMA/8000 

 ============================================================================
====
...

      SIP MESSAGE 13       10.16.1.218:5060() -> 10.16.1.147:5060()
      UDP Frame 13       20/Nov/03 16:21:18.6079 TimeFromPreviousSipFrame=0.3079
TimeFromStart=3.7574 
> ACK sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr SIP/2.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> To: sip:6032251114@10.16.1.147:5060;tag=1069363200-4210481069784248-11 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> CSeq: 232267826 ACK 
> Route: <sip:6037534033@172.17.4.102:5060...

> Content-Length: 0 
> Contact: 6037534033 <sip:6037534033@10.16.1.218:5060...

...

 ============================================================================
====
...

      SIP MESSAGE 14       10.16.1.147:5060() -> 172.17.4.102:5060()
      UDP Frame 14       20/Nov/03 16:21:18.6087 TimeFromPreviousSipFrame=0.0008
TimeFromStart=3.7582 
> ACK sip:6037534033@172.17.4.102:5060 SIP/2.0 
> Max-Forwards: 10 
> Via: SIP/2.0/UDP 10.16.1.147;branch=0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> To: sip:6032251114@10.16.1.147:5060;tag=1069363200-4210481069784248-11 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> CSeq: 232267826 ACK 
> Content-Length: 0 
> Contact: 6037534033 <sip:6037534033@10.16.1.218:5060...

...

 ============================================================================
====
...

      SIP MESSAGE 15       10.16.1.214:5060() -> 172.17.4.102:5060()
      UDP Frame 17       20/Nov/03 16:21:32.0864 TimeFromPreviousSipFrame=13.4777
TimeFromStart=17.2359 
...
  BYE sip:6037534033@172.17.4.102:5060 SIP/2.0 
 Via: SIP/2.0/UDP 10.16.1.214:5060 
 To: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
> From: <sip:6032251114@10.16.1.214;user=phone>;tag=c895ca6b2e9dc6f 
> Call-ID: 0023639601-0837240850979601-11 
> CSeq: 369997713 BYE 
> Supported: timer 
> Content-Length: 0 
> Supported: replaces 
...

 ============================================================================
====
...

      SIP MESSAGE 16       172.17.4.102:5060() -> 10.16.1.214:5060()
      UDP Frame 18       20/Nov/03 16:21:32.0922 TimeFromPreviousSipFrame=0.0058
TimeFromStart=17.2417 
...
  SIP/2.0 200 OK 
 Via: SIP/2.0/UDP 10.16.1.214:5060 
 From: <sip:6032251114@10.16.1.214;user=phone>;tag=c895ca6b2e9dc6f 
 To: "6037534033"
<sip:6037534033@172.17.4.102>;tag=1069363200-4276561069790856-11 
> CSeq: 369997713 BYE 
> Call-ID: 0023639601-0837240850979601-11 
...

 ============================================================================
====
...

      SIP MESSAGE 17       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 19       20/Nov/03 16:21:32.0926 TimeFromPreviousSipFrame=0.0004
TimeFromStart=17.2420 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 18       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 20       20/Nov/03 16:21:32.5992 TimeFromPreviousSipFrame=0.5067
TimeFromStart=17.7487 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 19       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 21       20/Nov/03 16:21:33.6090 TimeFromPreviousSipFrame=1.0098
TimeFromStart=18.7585 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 20       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 22       20/Nov/03 16:21:35.6190 TimeFromPreviousSipFrame=2.0100
TimeFromStart=20.7685 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 21       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 23       20/Nov/03 16:21:39.6292 TimeFromPreviousSipFrame=4.0102
TimeFromStart=24.7787 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 22       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 24       20/Nov/03 16:21:43.6395 TimeFromPreviousSipFrame=4.0104
TimeFromStart=28.7890 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 23       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 25       20/Nov/03 16:21:47.6496 TimeFromPreviousSipFrame=4.0101
TimeFromStart=32.7991 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 24       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 26       20/Nov/03 16:21:51.6595 TimeFromPreviousSipFrame=4.0099
TimeFromStart=36.8090 
...
  BYE sip:6037534033@10.16.1.218 SIP/2.0 
 Via: SIP/2.0/UDP 172.17.4.102:5060;branch=z9hG4bKSNCLLC1070017565 
 From: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> To: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> CSeq: 53 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> Max-Forwards: 10 
> Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > Content-Length: 0 
...

 ============================================================================
====
...

      SIP MESSAGE 25       10.16.1.218:5060() -> 10.16.1.147:5060()
      UDP Frame 27       20/Nov/03 16:21:54.2541 TimeFromPreviousSipFrame=2.5946
TimeFromStart=39.4036 
> BYE sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr SIP/2.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> To: sip:6032251114@10.16.1.147:5060;tag=1069363200-4210481069784248-11 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> CSeq: 232267827 BYE 
> Route: <sip:6037534033@172.17.4.102:5060...

> Supported: timer 
> Content-Length: 0 
> Supported: replaces 
...

 ============================================================================
====
...

      SIP MESSAGE 26       10.16.1.147:5060() -> 172.17.4.102:5060()
      UDP Frame 28       20/Nov/03 16:21:54.2551 TimeFromPreviousSipFrame=0.0009
TimeFromStart=39.4046 
> BYE sip:6037534033@172.17.4.102:5060 SIP/2.0 
> Max-Forwards: 10 
> Via: SIP/2.0/UDP 10.16.1.147;branch=z9hG4bK469d.a48a52a6.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> To: sip:6032251114@10.16.1.147:5060;tag=1069363200-4210481069784248-11 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
> CSeq: 232267827 BYE 
> Supported: timer 
> Content-Length: 0 
> Supported: replaces 
...

 ============================================================================
====
...

      SIP MESSAGE 27       172.17.4.102:5060() -> 10.16.1.147:5060()
      UDP Frame 29       20/Nov/03 16:21:54.2611 TimeFromPreviousSipFrame=0.0061
TimeFromStart=39.4106 
> SIP/2.0 200 OK 
> Via: SIP/2.0/UDP 10.16.1.147;branch=z9hG4bK469d.a48a52a6.0 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > CSeq: 232267827 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
...

 ============================================================================
====
...

      SIP MESSAGE 28       10.16.1.147:5060() -> 10.16.1.218:5060()
      UDP Frame 30       20/Nov/03 16:21:54.2617 TimeFromPreviousSipFrame=0.0005
TimeFromStart=39.4111 
> SIP/2.0 200 OK 
> Via: SIP/2.0/UDP 10.16.1.218:5060 
> From: 6037534033 <sip:6037534033@10.16.1.147:5060>;tag=5c948a53eb3c31b 
> To: <sip:6032251114@10.16.1.147:5060>;tag=1069363200-4210481069784248-11 
> Record-Route: <sip:6032251114@10.16.1.147:5060;ftag=5c948a53eb3c31b;lr...
   > CSeq: 232267827 BYE 
> Call-ID: e543c536ae93df9befd8b930046bbda3(a)10.16.1.147 
...

 ============================================================================
====
...

 List of reasons 6 traced packets out of 34 in scenario were not included. 28
included.
...
  [6]    Arp Packets
 ============================================================================
====
...

...
  _______________________________________________
 Serusers mailing list
 serusers(a)lists.iptel.org
 http://lists.iptel.org/mailman/listinfo/serusers 

RE: [Serusers] Record-Route Questions