[Blink] Blink registered with gizmo; no incoming calls, packet trace

Dean Willis dean.willis at softarmor.com
Thu Apr 29 19:02:06 CEST 2010


Well, I think I've figured out what's going on.


I set up Blink to register with only my gizmo account, from a mac  
behind a NAT.

It registered, with a Contact: using a random string and my NATted IP  
address.

I called it.

An INVITE shows up at Blink, with the  Request URI having the random  
string from my REGISTER, but with the host part being my public address.

Blink sent a 404.



No.     Time        Source                Destination            
Protocol Info
      48 8.664846    192.168.2.115         198.65.166.131         
SIP      Request: REGISTER sip:proxy01.sipphone.com

Frame 48 (551 bytes on wire, 551 bytes captured)
     Arrival Time: Apr 29, 2010 11:48:38.053333000
     [Time delta from previous captured frame: 0.005819000 seconds]
     [Time delta from previous displayed frame: 5.476108000 seconds]
     [Time since reference or first frame: 8.664846000 seconds]
     Frame Number: 48
     Frame Length: 551 bytes
     Capture Length: 551 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: AppleCom_40:09:d4 (00:17:f2:40:09:d4), Dst: Cisco- 
Li_31:45:26 (00:12:17:31:45:26)
     Destination: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 192.168.2.115 (192.168.2.115), Dst:  
198.65.166.131 (198.65.166.131)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 537
     Identification: 0x58de (22750)
     Flags: 0x00
         0.. = Reserved bit: Not Set
         .0. = Don't fragment: Not Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 64
     Protocol: UDP (0x11)
     Header checksum: 0xf015 [correct]
         [Good: True]
         [Bad : False]
     Source: 192.168.2.115 (192.168.2.115)
     Destination: 198.65.166.131 (198.65.166.131)
User Datagram Protocol, Src Port: 51026 (51026), Dst Port: sip (5060)
     Source port: 51026 (51026)
     Destination port: sip (5060)
     Length: 517
     Checksum: 0x1f3f [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: REGISTER sip:proxy01.sipphone.com SIP/2.0
         Method: REGISTER
         Request-URI: sip:proxy01.sipphone.com
             Request-URI Host Part: proxy01.sipphone.com
         [Resent Packet: False]
     Message Header
         Via: SIP/2.0/UDP  
192.168.2.115 
:51026;rport;branch=z9hG4bKPj3oY4Llk6ZK1KFDQ13FSsnRWjY991pB4C
             Transport: UDP
             Sent-by Address: 192.168.2.115
             Sent-by port: 51026
             RPort: rport
             Branch: z9hG4bKPj3oY4Llk6ZK1KFDQ13FSsnRWjY991pB4C
         Max-Forwards: 70
         From: "Dean Willis" <sip: 
17476756358 at proxy01.sipphone.com>;tag=0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
             SIP Display info: "Dean Willis"
             SIP from address: sip:17476756358 at proxy01.sipphone.com
                 SIP from address User Part: 17476756358
                 SIP from address Host Part: proxy01.sipphone.com
             SIP tag: 0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
         To: "Dean Willis" <sip:17476756358 at proxy01.sipphone.com>
             SIP Display info: "Dean Willis"
             SIP to address: sip:17476756358 at proxy01.sipphone.com
                 SIP to address User Part: 17476756358
                 SIP to address Host Part: proxy01.sipphone.com
         Contact: <sip:rgcxbewv at 192.168.2.115:51026>
             Contact Binding: <sip:rgcxbewv at 192.168.2.115:51026>
                 URI: <sip:rgcxbewv at 192.168.2.115:51026>
                     SIP contact address: sip:rgcxbewv at 192.168.2.115:51026
         Call-ID: dRASeyW7ovM9OZRPqSVWk0boil013rir
         CSeq: 1 REGISTER
             Sequence Number: 1
             Method: REGISTER
         Route: <sip:198.65.166.131;lr>
         Expires: 600
         User-Agent: blink-0.18.1
         Content-Length:  0

No.     Time        Source                Destination            
Protocol Info
      49 8.760264    198.65.166.131        192.168.2.115          
SIP      Status: 401 Unauthorized    (0 bindings)

Frame 49 (592 bytes on wire, 592 bytes captured)
     Arrival Time: Apr 29, 2010 11:48:38.148751000
     [Time delta from previous captured frame: 0.095418000 seconds]
     [Time delta from previous displayed frame: 0.095418000 seconds]
     [Time since reference or first frame: 8.760264000 seconds]
     Frame Number: 49
     Frame Length: 592 bytes
     Capture Length: 592 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 198.65.166.131 (198.65.166.131), Dst:  
192.168.2.115 (192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 578
     Identification: 0x3509 (13577)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 46
     Protocol: UDP (0x11)
     Header checksum: 0xe5c1 [correct]
         [Good: True]
         [Bad : False]
     Source: 198.65.166.131 (198.65.166.131)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 51026 (51026)
     Source port: sip (5060)
     Destination port: 51026 (51026)
     Length: 558
     Checksum: 0x9ee0 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Status-Line: SIP/2.0 401 Unauthorized
         Status-Code: 401
         [Resent Packet: False]
         [Request Frame: 48]
         [Response Time (ms): 95]
     Message Header
         Via: SIP/2.0/UDP  
192.168.2.115 
: 
51026 
;rport 
= 
51026 
;branch=z9hG4bKPj3oY4Llk6ZK1KFDQ13FSsnRWjY991pB4C;received=66.25.30.183
             Transport: UDP
             Sent-by Address: 192.168.2.115
             Sent-by port: 51026
             RPort: 51026
             Branch: z9hG4bKPj3oY4Llk6ZK1KFDQ13FSsnRWjY991pB4C
             Received: 66.25.30.183
         From: "Dean Willis" <sip: 
17476756358 at proxy01.sipphone.com>;tag=0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
             SIP Display info: "Dean Willis"
             SIP from address: sip:17476756358 at proxy01.sipphone.com
                 SIP from address User Part: 17476756358
                 SIP from address Host Part: proxy01.sipphone.com
             SIP tag: 0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
         To: "Dean Willis" <sip: 
17476756358 
@proxy01.sipphone.com>;tag=92390300a369f0d75803e369c733575e.baa5
             SIP Display info: "Dean Willis"
             SIP to address: sip:17476756358 at proxy01.sipphone.com
                 SIP to address User Part: 17476756358
                 SIP to address Host Part: proxy01.sipphone.com
             SIP tag: 92390300a369f0d75803e369c733575e.baa5
         Call-ID: dRASeyW7ovM9OZRPqSVWk0boil013rir
         CSeq: 1 REGISTER
             Sequence Number: 1
             Method: REGISTER
         P-Behind-NAT: Yes
             [Expert Info (Note/Undecoded): Unrecognised SIP header (P- 
Behind-NAT)]
                 [Message: Unrecognised SIP header (P-Behind-NAT)]
                 [Severity level: Note]
                 [Group: Undecoded]
         WWW-Authenticate: Digest realm="proxy01.sipphone.com",  
nonce="4bd9b991a9786dd6ef27ed0a181afb8c97a5cac2"
             Authentication Scheme: Digest
             Realm: "proxy01.sipphone.com"
             Nonce Value: "4bd9b991a9786dd6ef27ed0a181afb8c97a5cac2"
         Content-Length: 0

No.     Time        Source                Destination            
Protocol Info
      50 8.760810    192.168.2.115         198.65.166.131         
SIP      Request: REGISTER sip:proxy01.sipphone.com

Frame 50 (754 bytes on wire, 754 bytes captured)
     Arrival Time: Apr 29, 2010 11:48:38.149297000
     [Time delta from previous captured frame: 0.000546000 seconds]
     [Time delta from previous displayed frame: 0.000546000 seconds]
     [Time since reference or first frame: 8.760810000 seconds]
     Frame Number: 50
     Frame Length: 754 bytes
     Capture Length: 754 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: AppleCom_40:09:d4 (00:17:f2:40:09:d4), Dst: Cisco- 
Li_31:45:26 (00:12:17:31:45:26)
     Destination: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 192.168.2.115 (192.168.2.115), Dst:  
198.65.166.131 (198.65.166.131)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 740
     Identification: 0xdc93 (56467)
     Flags: 0x00
         0.. = Reserved bit: Not Set
         .0. = Don't fragment: Not Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 64
     Protocol: UDP (0x11)
     Header checksum: 0x6b95 [correct]
         [Good: True]
         [Bad : False]
     Source: 192.168.2.115 (192.168.2.115)
     Destination: 198.65.166.131 (198.65.166.131)
User Datagram Protocol, Src Port: 51026 (51026), Dst Port: sip (5060)
     Source port: 51026 (51026)
     Destination port: sip (5060)
     Length: 720
     Checksum: 0x9934 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: REGISTER sip:proxy01.sipphone.com SIP/2.0
         Method: REGISTER
         Request-URI: sip:proxy01.sipphone.com
             Request-URI Host Part: proxy01.sipphone.com
         [Resent Packet: False]
     Message Header
         Via: SIP/2.0/UDP  
192.168.2.115 
:51026;rport;branch=z9hG4bKPjG6sjjEIhrkOHhrRHyPsQNVgzXfT8Rbrj
             Transport: UDP
             Sent-by Address: 192.168.2.115
             Sent-by port: 51026
             RPort: rport
             Branch: z9hG4bKPjG6sjjEIhrkOHhrRHyPsQNVgzXfT8Rbrj
         Max-Forwards: 70
         From: "Dean Willis" <sip: 
17476756358 at proxy01.sipphone.com>;tag=0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
             SIP Display info: "Dean Willis"
             SIP from address: sip:17476756358 at proxy01.sipphone.com
                 SIP from address User Part: 17476756358
                 SIP from address Host Part: proxy01.sipphone.com
             SIP tag: 0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
         To: "Dean Willis" <sip:17476756358 at proxy01.sipphone.com>
             SIP Display info: "Dean Willis"
             SIP to address: sip:17476756358 at proxy01.sipphone.com
                 SIP to address User Part: 17476756358
                 SIP to address Host Part: proxy01.sipphone.com
         Contact: <sip:rgcxbewv at 192.168.2.115:51026>
             Contact Binding: <sip:rgcxbewv at 192.168.2.115:51026>
                 URI: <sip:rgcxbewv at 192.168.2.115:51026>
                     SIP contact address: sip:rgcxbewv at 192.168.2.115:51026
         Call-ID: dRASeyW7ovM9OZRPqSVWk0boil013rir
         CSeq: 2 REGISTER
             Sequence Number: 2
             Method: REGISTER
         Route: <sip:198.65.166.131;lr>
         Expires: 600
         User-Agent: blink-0.18.1
         Authorization: Digest username="17476756358",  
realm="proxy01.sipphone.com",  
nonce="4bd9b991a9786dd6ef27ed0a181afb8c97a5cac2", uri="sip:proxy01.sipphone.com 
", response="e955caba06956306805e51a655a1fcf3"
             Authentication Scheme: Digest
             Username: "17476756358"
             Realm: "proxy01.sipphone.com"
             Nonce Value: "4bd9b991a9786dd6ef27ed0a181afb8c97a5cac2"
             Authentication URI: "sip:proxy01.sipphone.com"
             Digest Authentication Response:  
"e955caba06956306805e51a655a1fcf3"
         Content-Length:  0

No.     Time        Source                Destination            
Protocol Info
      51 8.862039    198.65.166.131        192.168.2.115          
SIP      Status: 200 OK    (2 bindings)

Frame 51 (582 bytes on wire, 582 bytes captured)
     Arrival Time: Apr 29, 2010 11:48:38.250526000
     [Time delta from previous captured frame: 0.101229000 seconds]
     [Time delta from previous displayed frame: 0.101229000 seconds]
     [Time since reference or first frame: 8.862039000 seconds]
     Frame Number: 51
     Frame Length: 582 bytes
     Capture Length: 582 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 198.65.166.131 (198.65.166.131), Dst:  
192.168.2.115 (192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 568
     Identification: 0x353b (13627)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 46
     Protocol: UDP (0x11)
     Header checksum: 0xe599 [correct]
         [Good: True]
         [Bad : False]
     Source: 198.65.166.131 (198.65.166.131)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 51026 (51026)
     Source port: sip (5060)
     Destination port: 51026 (51026)
     Length: 548
     Checksum: 0x28d3 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Status-Line: SIP/2.0 200 OK
         Status-Code: 200
         [Resent Packet: False]
         [Request Frame: 50]
         [Response Time (ms): 101]
     Message Header
         Via: SIP/2.0/UDP  
192.168.2.115 
: 
51026 
;rport 
= 
51026 
;branch=z9hG4bKPjG6sjjEIhrkOHhrRHyPsQNVgzXfT8Rbrj;received=66.25.30.183
             Transport: UDP
             Sent-by Address: 192.168.2.115
             Sent-by port: 51026
             RPort: 51026
             Branch: z9hG4bKPjG6sjjEIhrkOHhrRHyPsQNVgzXfT8Rbrj
             Received: 66.25.30.183
         From: "Dean Willis" <sip: 
17476756358 at proxy01.sipphone.com>;tag=0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
             SIP Display info: "Dean Willis"
             SIP from address: sip:17476756358 at proxy01.sipphone.com
                 SIP from address User Part: 17476756358
                 SIP from address Host Part: proxy01.sipphone.com
             SIP tag: 0V2eKvCxvGCuwpGd3oKsBoD-d-H3hZSO
         To: "Dean Willis" <sip: 
17476756358 at proxy01.sipphone.com>;tag=92390300a369f0d75803e369c733575e. 
1dce
             SIP Display info: "Dean Willis"
             SIP to address: sip:17476756358 at proxy01.sipphone.com
                 SIP to address User Part: 17476756358
                 SIP to address Host Part: proxy01.sipphone.com
             SIP tag: 92390300a369f0d75803e369c733575e.1dce
         Call-ID: dRASeyW7ovM9OZRPqSVWk0boil013rir
         CSeq: 2 REGISTER
             Sequence Number: 2
             Method: REGISTER
         P-Behind-NAT: Yes
             [Expert Info (Note/Undecoded): Unrecognised SIP header (P- 
Behind-NAT)]
                 [Message: Unrecognised SIP header (P-Behind-NAT)]
                 [Severity level: Note]
                 [Group: Undecoded]
         Contact: <sip:deanwillis at 66.25.30.183:5060>;expires=1644, <sip:rgcxbewv at 66.25.30.183:51026 
 >;expires=600
             Contact Binding:  
<sip:deanwillis at 66.25.30.183:5060>;expires=1644
                 URI: <sip:deanwillis at 66.25.30.183:5060>
                     SIP contact address: sip:deanwillis at 66.25.30.183:5060
             Contact Binding:  
<sip:rgcxbewv at 66.25.30.183:51026>;expires=600
                 URI: <sip:rgcxbewv at 66.25.30.183:51026>
                     SIP contact address:  
sip:rgcxbewv at 66.25.30.183:51026
         Content-Length: 0

No.     Time        Source                Destination            
Protocol Info
      56 12.591752   85.17.186.7           192.168.2.115          
SIP      Request: NOTIFY sip:66.25.30.183:50954

Frame 56 (301 bytes on wire, 301 bytes captured)
     Arrival Time: Apr 29, 2010 11:48:41.980239000
     [Time delta from previous captured frame: 0.883011000 seconds]
     [Time delta from previous displayed frame: 3.729713000 seconds]
     [Time since reference or first frame: 12.591752000 seconds]
     Frame Number: 56
     Frame Length: 301 bytes
     Capture Length: 301 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 85.17.186.7 (85.17.186.7), Dst: 192.168.2.115  
(192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 287
     Identification: 0x0000 (0)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 42
     Protocol: UDP (0x11)
     Header checksum: 0x7d9a [correct]
         [Good: True]
         [Bad : False]
     Source: 85.17.186.7 (85.17.186.7)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 50954 (50954)
     Source port: sip (5060)
     Destination port: 50954 (50954)
     Length: 267
     Checksum: 0xfdfe [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: NOTIFY sip:66.25.30.183:50954 SIP/2.0
         Method: NOTIFY
         Request-URI: sip:66.25.30.183:50954
             Request-URI Host Part: 66.25.30.183
             Request-URI Host Port: 50954
         [Resent Packet: False]
     Message Header
         Via: SIP/2.0/UDP 85.17.186.7:5060;branch=0
             Transport: UDP
             Sent-by Address: 85.17.186.7
             Sent-by port: 5060
             Branch: 0
         From: sip:keepalive at 85.17.186.7;tag=7f7eef1a
             SIP from address: sip:keepalive at 85.17.186.7
                 SIP from address User Part: keepalive
                 SIP from address Host Part: 85.17.186.7
             SIP tag: 7f7eef1a
         To: sip:66.25.30.183:50954
             SIP to address: sip:66.25.30.183:50954
                 SIP to address Host Part: 66.25.30.183
                 SIP to address Host Port: 50954
         Call-ID: 560b03ab-2d3bdda4-1c035 at 85.17.186.7
         CSeq: 1 NOTIFY
             Sequence Number: 1
             Method: NOTIFY
         Event: keep-alive
         Content-Length: 0

No.     Time        Source                Destination            
Protocol Info
     112 45.850801   198.65.166.131        192.168.2.115         SIP/ 
SDP  Request: INVITE sip:rgcxbewv at 66.25.30.183:51026, with session  
description

Frame 112 (1056 bytes on wire, 1056 bytes captured)
     Arrival Time: Apr 29, 2010 11:49:15.239288000
     [Time delta from previous captured frame: 1.818593000 seconds]
     [Time delta from previous displayed frame: 33.259049000 seconds]
     [Time since reference or first frame: 45.850801000 seconds]
     Frame Number: 112
     Frame Length: 1056 bytes
     Capture Length: 1056 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip:sdp]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 198.65.166.131 (198.65.166.131), Dst:  
192.168.2.115 (192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 1042
     Identification: 0xabea (44010)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 46
     Protocol: UDP (0x11)
     Header checksum: 0x6d10 [correct]
         [Good: True]
         [Bad : False]
     Source: 198.65.166.131 (198.65.166.131)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 51026 (51026)
     Source port: sip (5060)
     Destination port: 51026 (51026)
     Length: 1022
     Checksum: 0x73e6 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: INVITE sip:rgcxbewv at 66.25.30.183:51026 SIP/2.0
         Method: INVITE
         Request-URI: sip:rgcxbewv at 66.25.30.183:51026
             Request-URI User Part: rgcxbewv
             Request-URI Host Part: 66.25.30.183
             Request-URI Host Port: 51026
         [Resent Packet: False]
     Message Header
         Record-Route: <sip:198.65.166.131;lr;ftag=as733b07c5>
         Via: SIP/2.0/UDP 198.65.166.131;branch=z9hG4bKbbe5.98f7ef92.1
             Transport: UDP
             Sent-by Address: 198.65.166.131
             Branch: z9hG4bKbbe5.98f7ef92.1
         Via: SIP/2.0/UDP  
198.65.166.172:5060;branch=z9hG4bK569fbe0a;rport=5060
             Transport: UDP
             Sent-by Address: 198.65.166.172
             Sent-by port: 5060
             Branch: z9hG4bK569fbe0a
             RPort: 5060
         From: "+12142821376" <sip: 
+12142821376 at 198.65.166.172>;tag=as733b07c5
             SIP Display info: "+12142821376"
             SIP from address: sip:+12142821376 at 198.65.166.172
                 SIP from address User Part: +12142821376
                 SIP from address Host Part: 198.65.166.172
             SIP tag: as733b07c5
         To: <sip:12145041987 at 198.65.166.131>
             SIP to address: sip:12145041987 at 198.65.166.131
                 SIP to address User Part: 12145041987
                 SIP to address Host Part: 198.65.166.131
         Contact: <sip:+12142821376 at 198.65.166.172>
             Contact Binding: <sip:+12142821376 at 198.65.166.172>
                 URI: <sip:+12142821376 at 198.65.166.172>
                     SIP contact address: sip: 
+12142821376 at 198.65.166.172
         Call-ID: 3d8c99342dd613734522c6056c9a2e08 at 198.65.166.172
         CSeq: 102 INVITE
             Sequence Number: 102
             Method: INVITE
         User-Agent: SIPCallProxy1
         Max-Forwards: 69
         Date: Thu, 29 Apr 2010 16:49:14 GMT
         Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE,  
NOTIFY
         Content-Type: application/sdp
         Content-Length: 317
         RemoteIP: 198.65.166.172
             [Expert Info (Note/Undecoded): Unrecognised SIP header  
(RemoteIP)]
                 [Message: Unrecognised SIP header (RemoteIP)]
                 [Severity level: Note]
                 [Group: Undecoded]
     Message Body
         Session Description Protocol
             Session Description Protocol Version (v): 0
             Owner/Creator, Session Id (o): root 12308 12308 IN IP4  
198.65.166.172
                 Owner Username: root
                 Session ID: 12308
                 Session Version: 12308
                 Owner Network Type: IN
                 Owner Address Type: IP4
                 Owner Address: 198.65.166.172
             Session Name (s): session
             Connection Information (c): IN IP4 198.65.166.172
                 Connection Network Type: IN
                 Connection Address Type: IP4
                 Connection Address: 198.65.166.172
             Time Description, active time (t): 0 0
                 Session Start Time: 0
                 Session Stop Time: 0
             Media Description, name and address (m): audio 13864 RTP/ 
AVP 18 97 0 8 101
                 Media Type: audio
                 Media Port: 13864
                 Media Protocol: RTP/AVP
                 Media Format: ITU-T G.729
                 Media Format: DynamicRTP-Type-97
                 Media Format: ITU-T G.711 PCMU
                 Media Format: ITU-T G.711 PCMA
                 Media Format: DynamicRTP-Type-101
             Media Attribute (a): rtpmap:18 G729/8000
                 Media Attribute Fieldname: rtpmap
                 Media Format: 18
                 MIME Type: G729
                 Sample Rate: 8000
             Media Attribute (a): fmtp:18 annexb=no
                 Media Attribute Fieldname: fmtp
                 Media Format: 18 [G729]
                 Media format specific parameters: annexb=no
             Media Attribute (a): rtpmap:97 iLBC/8000
                 Media Attribute Fieldname: rtpmap
                 Media Format: 97
                 MIME Type: iLBC
                 Sample Rate: 8000
             Media Attribute (a): rtpmap:0 PCMU/8000
                 Media Attribute Fieldname: rtpmap
                 Media Format: 0
                 MIME Type: PCMU
                 Sample Rate: 8000
             Media Attribute (a): rtpmap:8 PCMA/8000
                 Media Attribute Fieldname: rtpmap
                 Media Format: 8
                 MIME Type: PCMA
                 Sample Rate: 8000
             Media Attribute (a): rtpmap:101 telephone-event/8000
                 Media Attribute Fieldname: rtpmap
                 Media Format: 101
                 MIME Type: telephone-event
                 Sample Rate: 8000
             Media Attribute (a): fmtp:101 0-16
                 Media Attribute Fieldname: fmtp
                 Media Format: 101 [telephone-event]
                 Media format specific parameters: 0-16
             Media Attribute (a): silenceSupp:off - - - -
                 Media Attribute Fieldname: silenceSupp
                 Media Attribute Value: off - - - -

No.     Time        Source                Destination            
Protocol Info
     113 45.859271   192.168.2.115         198.65.166.131         
SIP      Status: 404 Not Found

Frame 113 (545 bytes on wire, 545 bytes captured)
     Arrival Time: Apr 29, 2010 11:49:15.247758000
     [Time delta from previous captured frame: 0.008470000 seconds]
     [Time delta from previous displayed frame: 0.008470000 seconds]
     [Time since reference or first frame: 45.859271000 seconds]
     Frame Number: 113
     Frame Length: 545 bytes
     Capture Length: 545 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: AppleCom_40:09:d4 (00:17:f2:40:09:d4), Dst: Cisco- 
Li_31:45:26 (00:12:17:31:45:26)
     Destination: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 192.168.2.115 (192.168.2.115), Dst:  
198.65.166.131 (198.65.166.131)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 531
     Identification: 0xb9c2 (47554)
     Flags: 0x00
         0.. = Reserved bit: Not Set
         .0. = Don't fragment: Not Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 64
     Protocol: UDP (0x11)
     Header checksum: 0x8f37 [correct]
         [Good: True]
         [Bad : False]
     Source: 192.168.2.115 (192.168.2.115)
     Destination: 198.65.166.131 (198.65.166.131)
User Datagram Protocol, Src Port: 51026 (51026), Dst Port: sip (5060)
     Source port: 51026 (51026)
     Destination port: sip (5060)
     Length: 511
     Checksum: 0x8f14 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Status-Line: SIP/2.0 404 Not Found
         Status-Code: 404
         [Resent Packet: False]
         [Request Frame: 112]
         [Response Time (ms): 8]
     Message Header
         Via: SIP/2.0/UDP  
198.65.166.131;received=198.65.166.131;branch=z9hG4bKbbe5.98f7ef92.1
             Transport: UDP
             Sent-by Address: 198.65.166.131
             Received: 198.65.166.131
             Branch: z9hG4bKbbe5.98f7ef92.1
         Via: SIP/2.0/UDP  
198.65.166.172:5060;rport=5060;branch=z9hG4bK569fbe0a
             Transport: UDP
             Sent-by Address: 198.65.166.172
             Sent-by port: 5060
             RPort: 5060
             Branch: z9hG4bK569fbe0a
         Record-Route: <sip:198.65.166.131;lr;ftag=as733b07c5>
         Call-ID: 3d8c99342dd613734522c6056c9a2e08 at 198.65.166.172
         From: "+12142821376" <sip: 
+12142821376 at 198.65.166.172>;tag=as733b07c5
             SIP Display info: "+12142821376"
             SIP from address: sip:+12142821376 at 198.65.166.172
                 SIP from address User Part: +12142821376
                 SIP from address Host Part: 198.65.166.172
             SIP tag: as733b07c5
         To: <sip: 
12145041987 at 198.65.166.131>;tag=VR685tbeJV2M8Witcy0bgekXGyDXzclU
             SIP to address: sip:12145041987 at 198.65.166.131
                 SIP to address User Part: 12145041987
                 SIP to address Host Part: 198.65.166.131
             SIP tag: VR685tbeJV2M8Witcy0bgekXGyDXzclU
         CSeq: 102 INVITE
             Sequence Number: 102
             Method: INVITE
         Server: blink-0.18.1
         Content-Length:  0

No.     Time        Source                Destination            
Protocol Info
     114 45.955540   198.65.166.131        192.168.2.115          
SIP      Request: ACK sip:rgcxbewv at 66.25.30.183:51026

Frame 114 (390 bytes on wire, 390 bytes captured)
     Arrival Time: Apr 29, 2010 11:49:15.344027000
     [Time delta from previous captured frame: 0.096269000 seconds]
     [Time delta from previous displayed frame: 0.096269000 seconds]
     [Time since reference or first frame: 45.955540000 seconds]
     Frame Number: 114
     Frame Length: 390 bytes
     Capture Length: 390 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 198.65.166.131 (198.65.166.131), Dst:  
192.168.2.115 (192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
         0000 00.. = Differentiated Services Codepoint: Default (0x00)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 376
     Identification: 0xac44 (44100)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 46
     Protocol: UDP (0x11)
     Header checksum: 0x6f50 [correct]
         [Good: True]
         [Bad : False]
     Source: 198.65.166.131 (198.65.166.131)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 51026 (51026)
     Source port: sip (5060)
     Destination port: 51026 (51026)
     Length: 356
     Checksum: 0xcca6 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: ACK sip:rgcxbewv at 66.25.30.183:51026 SIP/2.0
         Method: ACK
         Request-URI: sip:rgcxbewv at 66.25.30.183:51026
             Request-URI User Part: rgcxbewv
             Request-URI Host Part: 66.25.30.183
             Request-URI Host Port: 51026
         [Resent Packet: False]
         [Request Frame: 112]
         [Response Time (ms): 104]
     Message Header
         Via: SIP/2.0/UDP 198.65.166.131;branch=z9hG4bKbbe5.98f7ef92.1
             Transport: UDP
             Sent-by Address: 198.65.166.131
             Branch: z9hG4bKbbe5.98f7ef92.1
         From: "+12142821376" <sip: 
+12142821376 at 198.65.166.172>;tag=as733b07c5
             SIP Display info: "+12142821376"
             SIP from address: sip:+12142821376 at 198.65.166.172
                 SIP from address User Part: +12142821376
                 SIP from address Host Part: 198.65.166.172
             SIP tag: as733b07c5
         Call-ID: 3d8c99342dd613734522c6056c9a2e08 at 198.65.166.172
         To: <sip: 
12145041987 at 198.65.166.131>;tag=VR685tbeJV2M8Witcy0bgekXGyDXzclU
             SIP to address: sip:12145041987 at 198.65.166.131
                 SIP to address User Part: 12145041987
                 SIP to address Host Part: 198.65.166.131
             SIP tag: VR685tbeJV2M8Witcy0bgekXGyDXzclU
         CSeq: 102 ACK
             Sequence Number: 102
             Method: ACK
         Content-Length: 0

No.     Time        Source                Destination            
Protocol Info
     117 53.188762   81.23.228.129         192.168.2.115          
SIP      Request: NOTIFY sip:66.25.30.183:50954

Frame 117 (307 bytes on wire, 307 bytes captured)
     Arrival Time: Apr 29, 2010 11:49:22.577249000
     [Time delta from previous captured frame: 2.496564000 seconds]
     [Time delta from previous displayed frame: 7.233222000 seconds]
     [Time since reference or first frame: 53.188762000 seconds]
     Frame Number: 117
     Frame Length: 307 bytes
     Capture Length: 307 bytes
     [Frame is marked: False]
     [Protocols in frame: eth:ip:udp:sip]
     [Coloring Rule Name: UDP]
     [Coloring Rule String: udp]
Ethernet II, Src: Cisco-Li_31:45:26 (00:12:17:31:45:26), Dst:  
AppleCom_40:09:d4 (00:17:f2:40:09:d4)
     Destination: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         Address: AppleCom_40:09:d4 (00:17:f2:40:09:d4)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Source: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         Address: Cisco-Li_31:45:26 (00:12:17:31:45:26)
         .... ...0 .... .... .... .... = IG bit: Individual address  
(unicast)
         .... ..0. .... .... .... .... = LG bit: Globally unique  
address (factory default)
     Type: IP (0x0800)
Internet Protocol, Src: 81.23.228.129 (81.23.228.129), Dst:  
192.168.2.115 (192.168.2.115)
     Version: 4
     Header length: 20 bytes
     Differentiated Services Field: 0x08 (DSCP 0x02: Unknown DSCP;  
ECN: 0x00)
         0000 10.. = Differentiated Services Codepoint: Unknown (0x02)
         .... ..0. = ECN-Capable Transport (ECT): 0
         .... ...0 = ECN-CE: 0
     Total Length: 293
     Identification: 0x0000 (0)
     Flags: 0x02 (Don't Fragment)
         0.. = Reserved bit: Not Set
         .1. = Don't fragment: Set
         ..0 = More fragments: Not Set
     Fragment offset: 0
     Time to live: 44
     Protocol: UDP (0x11)
     Header checksum: 0x550c [correct]
         [Good: True]
         [Bad : False]
     Source: 81.23.228.129 (81.23.228.129)
     Destination: 192.168.2.115 (192.168.2.115)
User Datagram Protocol, Src Port: sip (5060), Dst Port: 50954 (50954)
     Source port: sip (5060)
     Destination port: 50954 (50954)
     Length: 273
     Checksum: 0x54a5 [correct]
         [Good Checksum: True]
         [Bad Checksum: False]
Session Initiation Protocol
     Request-Line: NOTIFY sip:66.25.30.183:50954 SIP/2.0
         Method: NOTIFY
         Request-URI: sip:66.25.30.183:50954
             Request-URI Host Part: 66.25.30.183
             Request-URI Host Port: 50954
         [Resent Packet: False]
     Message Header
         Via: SIP/2.0/UDP 81.23.228.129:5060;branch=0
             Transport: UDP
             Sent-by Address: 81.23.228.129
             Sent-by port: 5060
             Branch: 0
         From: sip:keepalive at 81.23.228.129;tag=3d432781
             SIP from address: sip:keepalive at 81.23.228.129
                 SIP from address User Part: keepalive
                 SIP from address Host Part: 81.23.228.129
             SIP tag: 3d432781
         To: sip:66.25.30.183:50954
             SIP to address: sip:66.25.30.183:50954
                 SIP to address Host Part: 66.25.30.183
                 SIP to address Host Port: 50954
         Call-ID: 6302e87c-39897273-403a3 at 81.23.228.129
         CSeq: 1 NOTIFY
             Sequence Number: 1
             Method: NOTIFY
         Event: keep-alive
         Content-Length: 0




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