/mcpSPA112 firmware versions 1.2.1(004) and newer April 5 th 2013 Check for updates at: https://supportforums.cisco.com/docs/DOC-31744 Internet Protocol Version 4, Src: 10.99.31.140 (10.99.31.140), Dst: 10.99.31.132 (10.99.31.132) Transmission Control Protocol, Src Port: sip (5060), Dst Port: 5077 (5077), Seq: 1, Ack: 582, Len: 283 Session Initiation Protocol (100) Status-Line: SIP/2.0 100 Trying Message Header Via: SIP/2.0/TCP 10.99.31.132:5077;branch=z9hG4bK-564954c4 From: sip:1022@10.99.31.140;tag=212cfce5c8d03e9o0 To: sip:1022@10.99.31.140 Date: Fri, 05 Apr 2013 19:36:51 GMT Call-ID: f81e24aa-db5053bf@10.99.31.132 CSeq: 26543 REGISTER Content-Length: 0 No. Time ToD Source Destination Protocol Length Info 328 69.457 14:36:55.519 10.99.31.140 10.99.31.132 SIP 472 Status: 401 Unauthorized (0 bindings) | Frame 328: 472 bytes on wire (3776 bits), 472 bytes captured (3776 bits) on interface 0 Ethernet II, Src: WistronI_11:22:33 (f0:de:f1:11:22:33), Dst: Cisco_5c:0e:9a (cc:ef:48:5c:0e:9a) Internet Protocol Version 4, Src: 10.99.31.140 (10.99.31.140), Dst: 10.99.31.132 (10.99.31.132) Transmission Control Protocol, Src Port: sip (5060), Dst Port: 5077 (5077), Seq: 284, Ack: 582, Len: 406 Session Initiation Protocol (401) Status-Line: SIP/2.0 401 Unauthorized Message Header Via: SIP/2.0/TCP 10.99.31.132:5077;branch=z9hG4bK-564954c4 From: sip:1022@10.99.31.140;tag=212cfce5c8d03e9o0 To: sip:1022@10.99.31.140;tag=2075367907 Date: Fri, 05 Apr 2013 19:36:51 GMT Call-ID: f81e24aa-db5053bf@10.99.31.132 CSeq: 26543 REGISTER WWW-Authenticate: Digest realm="ccmsipline", nonce="iVST/8LeNp0TaD2e7s00mp9kyP7k7/w9", algorithm=MD5 Content-Length: 0 No. Time ToD Source Destination Protocol Length Info 329 69.458 14:36:55.520 10.99.31.132 10.99.31.140 SIP 647 Request: REGISTER sip:10.99.31.140 | Frame 329: 647 bytes on wire (5176 bits), 647 bytes captured (5176 bits) on interface 0 Ethernet II, Src: Cisco_5c:0e:9a (cc:ef:48:5c:0e:9a), Dst: WistronI_11:22:33 (f0:de:f1:11:22:33) Internet Protocol Version 4, Src: 10.99.31.132 (10.99.31.132), Dst: 10.99.31.140 (10.99.31.140) Transmission Control Protocol, Src Port: 5077 (5077), Dst Port: sip (5060), Seq: 582, Ack: 1, Len: 581 Session Initiation Protocol (REGISTER) Request-Line: REGISTER sip:10.99.31.140 SIP/2.0 Message Header Via: SIP/2.0/TCP 10.99.31.132:5077;branch=z9hG4bK-564954c4 From: sip:1022@10.99.31.140;tag=212cfce5c8d03e9o0 To: sip:1022@10.99.31.140 Call-ID: f81e24aa-db5053bf@10.99.31.132 CSeq: 26543 REGISTER Max-Forwards: 70 Contact: sip:1022@10.99.31.132:5077;transport=tcp;expires=3600 P-Station-Name: ;mac=ccef485c0e9a; sn=CBT154305BS User-Agent: Cisco/SPA112-1.3.1(003)