[Serusers] Problem with MTU size in SER with MIPv6.
Jose Angel Calvo
jacc15dkz at yahoo.es
Thu Dec 21 10:39:41 CET 2006
Now, i'll explain and show the INVITE causing the crash:
The INVITE packet is fragmented in two frames. The capture is done with the ethereal (wireshark now) and it's the next:
***********************************************************************
No. Time
Source Destination Protocol Info
1 0.000000 2001:720:1500:24:fcfd:ff:fe0d:101
2001:720:1500:1b:20c:76ff:fe6c:4658 IPv6 IPv6 fragment (nxt=UDP
(0x11) off=1408 id=0x5)
Frame 1 (431 bytes on wire, 431 bytes captured)
Arrival Time: Nov 30, 2006 16:40:02.345512000
Time delta from previous packet: 0.000000000 seconds
Time since reference or first frame: 0.000000000 seconds
Frame Number: 1
Packet Length: 431 bytes
Capture Length: 431 bytes
Protocols in frame: sll:ipv6:data
Linux cooked capture
Packet type: Unicast to another host (3)
Link-layer address
type: 1
Link-layer address length: 6
Source: Cisco_17:28:70 (00:d0:06:17:28:70)
Protocol: IPv6 (0x86dd)
Internet Protocol Version 6
Version: 6
Traffic class: 0x00
Flowlabel: 0x00000
Payload length: 375
Next header: IPv6 fragment (0x2c)
Hop limit: 61
Source address: 2001:720:1500:24:fcfd:ff:fe0d:101 (2001:720:1500:24:fcfd:ff:fe0d:101)
Destination address: 2001:720:1500:1b:20c:76ff:fe6c:4658 (2001:720:1500:1b:20c:76ff:fe6c:4658)
Fragmentation Header
Next header: UDP (0x11)
Offset: 1408
More fragments: No
Identification: 0x00000005
Data (367 bytes)
0000 00 03 00 01 00 06 00 d0 06 17 28 70 00 00 86 dd
..........(p....
0010 60 00 00 00 01 77 2c 3d 20 01 07 20 15 00 00 24 `....w,= .. ...$
0020 fc fd 00 ff fe 0d 01 01 20 01 07 20 15 00 00 1b ........ .. ....
0030 02 0c 76 ff fe 6c 46 58 11 00 05 80 00 00 00 05 ..v..lFX........
0040 50 44 41 54 45 0d 0a 52 65 70 6c 61 63 65 73 3a PDATE..Replaces:
0050 20 64 34 63 38 37 63 39 30 32 64 31 62 35 32 62 d4c87c902d1b52b
0060 32 38 36 62 61 64 39 36 66 33 63 62 62 36 31 34 286bad96f3cbb614
0070 34 40 5b 32 30 30 31 3a 37 32 30 3a 31 35 30 30 4@[2001:720:1500
0080 3a 31 61 3a 32 33 30 3a 31 62 66 66 3a 66 65 31 :1a:230:1bff:fe1
0090 30 3a 35 66 62 33 5d 3b 72 65 61 73 6f 6e 3d 53 0:5fb3];reason=S
00a0 49 50 20 72 6f 75 74 65 20 68 61 73 20 63 68 61 IP route has cha
00b0 6e 67 65 64 0d 0a 43 6f 6e 74 65 6e 74 2d
54 79 nged..Content-Ty
00c0 70 65 3a 20 61 70 70 6c 69 63 61 74 69 6f 6e 2f pe: application/
00d0 73 64 70 0d 0a 43 6f 6e 74 65 6e 74 2d 4c 65 6e sdp..Content-Len
00e0 67 74 68 3a 20 31 39 35 0d 0a 0d 0a 76 3d 30 0d gth: 195....v=0.
00f0 0a 6f 3d 69 73 61 62 65 6c 20 30 20 30 20 49 4e .o=isabel 0 0 IN
0100 20 49 50 36 20 5b 32 30 30 31 3a 37 32 30 3a 31 IP6 [2001:720:1
0110 35 30 30 3a 31 61 3a 32 33 30 3a 31 62 66 66 3a 500:1a:230:1bff:
0120 66 65 31 30 3a 35 66 62 33 5d 0d 0a 73 3d 2d 0d fe10:5fb3]..s=-.
0130 0a 63 3d 49 4e 20 49 50 36 20 32 30 30 31 3a 37 .c=IN IP6 2001:7
0140 32 30 3a 31 35 30 30 3a 31 61 3a 32 33 30 3a 31 20:1500:1a:230:1
0150 62 66 66 3a 66 65 31 30 3a 35 66 62 33 0d 0a 74 bff:fe10:5fb3..t
0160 3d 30 20 30 0d 0a 6d 3d
61 75 64 69 6f 20 32 32 =0 0..m=audio 22
0170 32 32 34 20 52 54 50 2f 41 56 50 20 30 20 33 20 224 RTP/AVP 0 3
0180 34 20 35 20 36 20 38 20 31 35 20 31 38 0d 0a 6d 4 5 6 8 15 18..m
0190 3d 76 69 64 65 6f 20 32 32 32 32 32 20 52 54 50 =video 22222 RTP
01a0 2f 41 56 50 20 32 36 20 33 34 20 33 31 0d 0a /AVP 26 34 31..
No. Time Source Destination Protocol Info
2 0.000117 2001:720:1500:24:fcfd:ff:fe0d:101
2001:720:1500:1b:20c:76ff:fe6c:4658 SIP Request: INVITE
sip:[2001:720:1500:1b:20c:76ff:fe6c:4658]:5060;transport=udp
Frame 2 (1512 bytes on wire, 1512 bytes
captured)
Arrival Time: Nov 30, 2006 16:40:02.345629000
Time delta from previous packet: 0.000117000 seconds
Time since reference or first frame: 0.000117000 seconds
Frame Number: 2
Packet Length: 1512 bytes
Capture Length: 1512 bytes
Protocols in frame: sll:ipv6:ipv6:udp:sip
Linux cooked capture
Packet type: Sent by us (4)
Link-layer address type: 1
Link-layer address length: 6
Source: fe:fd:00:0c:00:01 (fe:fd:00:0c:00:01)
Protocol: IPv6 (0x86dd)
Internet Protocol Version 6
Version: 6
Traffic class: 0x00
Flowlabel: 0x00000
Payload length: 1456
Next header: IPv6 (0x29)
Hop
limit: 64
Source address: 2001:720:1500:1b:fcfd:ff:fe0c:1 (2001:720:1500:1b:fcfd:ff:fe0c:1)
Destination address: 2001:720:1500:24:20c:76ff:fe6c:4658 (2001:720:1500:24:20c:76ff:fe6c:4658)
Internet Protocol Version 6
Version: 6
Traffic class: 0x00
Flowlabel: 0x00000
Payload length: 1416
Next header: IPv6 fragment (0x2c)
Hop limit: 60
Source address: 2001:720:1500:24:fcfd:ff:fe0d:101 (2001:720:1500:24:fcfd:ff:fe0d:101)
Destination address: 2001:720:1500:1b:20c:76ff:fe6c:4658 (2001:720:1500:1b:20c:76ff:fe6c:4658)
Fragmentation Header
Next header: UDP (0x11)
Offset: 0
More fragments: Yes
Identification: 0x00000005
User Datagram Protocol, Src Port: sip (5060), Dst
Port: sip (5060)
Source port: sip (5060)
Destination port: sip (5060)
Length: 1775
Checksum: 0x9301
Session Initiation Protocol
Request-Line: INVITE sip:[2001:720:1500:1b:20c:76ff:fe6c:4658]:5060;transport=udp SIP/2.0
Method: INVITE
Resent Packet: False
Message Header
Record-Route: <sip:[2001:720:1500:24:FCFD:FF:FE0D:101];ftag=12122347;lr=on>
Record-Route: <sip:[2001:720:1500:1B:FCFD:FF:FE0C:103];ftag=12122347;lr=on>
Record-Route: <sip:[2001:720:1500:1A:FCFD:FF:FE0A:103];ftag=12122347;lr=on>
Record-Route:
<sip:[2001:720:1500:19:FCFD:FF:FE0E:101];ftag=12122347;lr=on>
Call-ID: 138104335821ad9b21971c7d6059b6c8@[2001:720:1500:1a:230:1bff:fe10:5fb3]
CSeq: 1 INVITE
From: "ueA" <sip:ueA at domainA.ammi.dit.upm.es>;tag=12122347
SIP Display info: "ueA"
SIP from address: sip:ueA at domainA.ammi.dit.upm.es
SIP tag: 12122347
To: <sip:ueC at domainC.ammi.dit.upm.es>
SIP to address: sip:ueC at domainC.ammi.dit.upm.es
Via: SIP/2.0/UDP
[2001:720:1500:24:FCFD:FF:FE0D:101];branch=z9hG4bK1205.ddbf87e4.0
Via: SIP/2.0/UDP [2001:720:1500:1B:FCFD:FF:FE0C:103];branch=z9hG4bK1205.c8a66626.0
Via: SIP/2.0/UDP [2001:720:1500:1B:FCFD:FF:FE0C:102];branch=z9hG4bK1205.1cb3a0b4.0
Via: SIP/2.0/UDP [2001:720:1500:1A:FCFD:FF:FE0A:103];branch=z9hG4bK1205.44344f04.0
Via: SIP/2.0/UDP [2001:720:1500:19:FCFD:FF:FE0E:101];branch=z9hG4bK1205.a44e3b34.0
Via: SIP/2.0/UDP [2001:720:1500:1a:230:1bff:fe10:5fb3]:61052;branch=z9hG4bK40e1844512a234e326ef8222f8b204fb
Max-Forwards: 12
Contact: "ueA"
<sip:[2001:720:1500:1a:230:1bff:fe10:5fb3]:61052;transport=udp>
Contact Binding: "ueA" <sip:[2001:720:1500:1a:230:1bff:fe10:5fb3]:61052;transport=udp>
URI: "ueA" <sip:[2001:720:1500:1a:230:1bff:fe10:5fb3]:61052;transport=udp>
SIP Display info: "ueA"
SIP contact address: sip:[2001:720:1500:1a:230:1bff:fe10:5fb3]:61052
P-Preferred-Identity: "ueA" <sip:ueA at domainA.ammi.dit.upm.es>;tag=12122347
Privacy: none
P-Access-Network-Info: 3GPP-UTRAN-TDD;utran-cell-id-3gpp=181086
Allow: INVITE,ACK,CANCEL,BYE,PRACK,U
0000 00 04 00 01 00 06 fe fd 00 0c 00 01 00 00 86 dd ................
0010 60 00 00 00 05 b0 29 40 20 01 07 20 15 00 00 1b `.....)@ .. ....
0020 fc fd 00 ff fe 0c 00 01 20 01 07 20 15 00 00 24 ........ .. ...$
0030 02 0c 76 ff fe 6c 46 58 60 00 00 00 05 88 2c 3c ..v..lFX`.....,<
0040 20 01 07 20 15 00 00 24 fc fd 00 ff fe 0d 01 01 .. ...$........
0050 20 01 07 20 15 00 00 1b 02 0c 76 ff fe 6c 46 58 .. ......v..lFX
0060 11 00 00 01 00 00 00 05 13 c4 13 c4 06 ef 93 01 ................
0070 49 4e 56 49 54 45 20 73 69 70 3a 5b 32 30 30 31 INVITE sip:[2001
0080 3a 37 32 30 3a 31 35 30 30 3a 31 62 3a 32 30 63
:720:1500:1b:20c
0090 3a 37 36 66 66 3a 66 65 36 63 3a 34 36 35 38 5d :76ff:fe6c:4658]
00a0 3a 35 30 36 30 3b 74 72 61 6e 73 70 6f 72 74 3d :5060;transport=
00b0 75 64 70 20 53 49 50 2f 32 2e 30 0d 0a 52 65 63 udp SIP/2.0..Rec
00c0 6f 72 64 2d 52 6f 75 74 65 3a 20 3c 73 69 70 3a ord-Route: <sip:
00d0 5b 32 30 30 31 3a 37 32 30 3a 31 35 30 30 3a 32 [2001:720:1500:2
00e0 34 3a 46 43 46 44 3a 46 46 3a 46 45 30 44 3a 31 4:FCFD:FF:FE0D:1
00f0 30 31 5d 3b 66 74 61 67 3d 31 32 31 32 32 33 34 01];ftag=1212234
0100 37 3b 6c 72 3d 6f 6e 3e 0d 0a 52 65 63 6f 72 64 7;lr=on>..Record
0110 2d 52 6f 75 74 65 3a 20 3c 73 69 70 3a 5b 32 30 -Route: <sip:[20
0120 30 31 3a 37 32 30 3a 31 35 30 30 3a 31 42 3a 46 01:720:1500:1B:F
0130 43 46 44 3a 46 46 3a 46 45 30 43 3a
31 30 33 5d CFD:FF:FE0C:103]
0140 3b 66 74 61 67 3d 31 32 31 32 32 33 34 37 3b 6c ;ftag=12122347;l
0150 72 3d 6f 6e 3e 0d 0a 52 65 63 6f 72 64 2d 52 6f r=on>..Record-Ro
0160 75 74 65 3a 20 3c 73 69 70 3a 5b 32 30 30 31 3a ute: <sip:[2001:
0170 37 32 30 3a 31 35 30 30 3a 31 41 3a 46 43 46 44 720:1500:1A:FCFD
0180 3a 46 46 3a 46 45 30 41 3a 31 30 33 5d 3b 66 74 :FF:FE0A:103];ft
0190 61 67 3d 31 32 31 32 32 33 34 37 3b 6c 72 3d 6f ag=12122347;lr=o
01a0 6e 3e 0d 0a 52 65 63 6f 72 64 2d 52 6f 75 74 65 n>..Record-Route
01b0 3a 20 3c 73 69 70 3a 5b 32 30 30 31 3a 37 32 30 : <sip:[2001:720
01c0 3a 31 35 30 30 3a 31 39 3a 46 43 46 44 3a 46 46 :1500:19:FCFD:FF
01d0 3a 46 45 30 45 3a 31 30 31 5d 3b 66 74 61 67 3d :FE0E:101];ftag=
01e0 31 32 31
32 32 33 34 37 3b 6c 72 3d 6f 6e 3e 0d 12122347;lr=on>.
01f0 0a 43 61 6c 6c 2d 49 44 3a 20 31 33 38 31 30 34 .Call-ID: 138104
0200 33 33 35 38 32 31 61 64 39 62 32 31 39 37 31 63 335821ad9b21971c
0210 37 64 36 30 35 39 62 36 63 38 40 5b 32 30 30 31 7d6059b6c8@[2001
0220 3a 37 32 30 3a 31 35 30 30 3a 31 61 3a 32 33 30 :720:1500:1a:230
0230 3a 31 62 66 66 3a 66 65 31 30 3a 35 66 62 33 5d :1bff:fe10:5fb3]
0240 0d 0a 43 53 65 71 3a 20 31 20 49 4e 56 49 54 45 ..CSeq: 1 INVITE
0250 0d 0a 46 72 6f 6d 3a 20 22 75 65 41 22 20 3c 73 ..From: "ueA" <s
0260 69 70 3a 75 65 41 40 64 6f 6d 61 69 6e 41 2e 61 ip:ueA at domainA.a
0270 6d 6d 69 2e 64 69 74 2e 75 70 6d 2e 65 73 3e 3b mmi.dit.upm.es>;
0280 74 61 67 3d 31 32 31 32 32 33 34 37 0d 0a 54 6f
tag=12122347..To
0290 3a 20 3c 73 69 70 3a 75 65 43 40 64 6f 6d 61 69 : <sip:ueC at domai
02a0 6e 43 2e 61 6d 6d 69 2e 64 69 74 2e 75 70 6d 2e nC.ammi.dit.upm.
02b0 65 73 3e 0d 0a 56 69 61 3a 20 53 49 50 2f 32 2e es>..Via: SIP/2.
02c0 30 2f 55 44 50 20 5b 32 30 30 31 3a 37 32 30 3a 0/UDP [2001:720:
02d0 31 35 30 30 3a 32 34 3a 46 43 46 44 3a 46 46 3a 1500:24:FCFD:FF:
02e0 46 45 30 44 3a 31 30 31 5d 3b 62 72 61 6e 63 68 FE0D:101];branch
02f0 3d 7a 39 68 47 34 62 4b 31 32 30 35 2e 64 64 62 =z9hG4bK1205.ddb
0300 66 38 37 65 34 2e 30 0d 0a 56 69 61 3a 20 53 49 f87e4.0..Via: SI
0310 50 2f 32 2e 30 2f 55 44 50 20 5b 32 30 30 31 3a P/2.0/UDP [2001:
0320 37 32 30 3a 31 35 30 30 3a 31 42 3a 46 43 46 44 720:1500:1B:FCFD
0330 3a 46 46 3a 46 45 30 43 3a 31 30 33 5d
3b 62 72 :FF:FE0C:103];br
0340 61 6e 63 68 3d 7a 39 68 47 34 62 4b 31 32 30 35 anch=z9hG4bK1205
0350 2e 63 38 61 36 36 36 32 36 2e 30 0d 0a 56 69 61 .c8a66626.0..Via
0360 3a 20 53 49 50 2f 32 2e 30 2f 55 44 50 20 5b 32 : SIP/2.0/UDP [2
0370 30 30 31 3a 37 32 30 3a 31 35 30 30 3a 31 42 3a 001:720:1500:1B:
0380 46 43 46 44 3a 46 46 3a 46 45 30 43 3a 31 30 32 FCFD:FF:FE0C:102
0390 5d 3b 62 72 61 6e 63 68 3d 7a 39 68 47 34 62 4b ];branch=z9hG4bK
03a0 31 32 30 35 2e 31 63 62 33 61 30 62 34 2e 30 0d 1205.1cb3a0b4.0.
03b0 0a 56 69 61 3a 20 53 49 50 2f 32 2e 30 2f 55 44 .Via: SIP/2.0/UD
03c0 50 20 5b 32 30 30 31 3a 37 32 30 3a 31 35 30 30 P [2001:720:1500
03d0 3a 31 41 3a 46 43 46 44 3a 46 46 3a 46 45 30 41 :1A:FCFD:FF:FE0A
03e0 3a 31 30 33 5d 3b 62 72
61 6e 63 68 3d 7a 39 68 :103];branch=z9h
03f0 47 34 62 4b 31 32 30 35 2e 34 34 33 34 34 66 30 G4bK1205.44344f0
0400 34 2e 30 0d 0a 56 69 61 3a 20 53 49 50 2f 32 2e 4.0..Via: SIP/2.
0410 30 2f 55 44 50 20 5b 32 30 30 31 3a 37 32 30 3a 0/UDP [2001:720:
0420 31 35 30 30 3a 31 39 3a 46 43 46 44 3a 46 46 3a 1500:19:FCFD:FF:
0430 46 45 30 45 3a 31 30 31 5d 3b 62 72 61 6e 63 68 FE0E:101];branch
0440 3d 7a 39 68 47 34 62 4b 31 32 30 35 2e 61 34 34 =z9hG4bK1205.a44
0450 65 33 62 33 34 2e 30 0d 0a 56 69 61 3a 20 53 49 e3b34.0..Via: SI
0460 50 2f 32 2e 30 2f 55 44 50 20 5b 32 30 30 31 3a P/2.0/UDP [2001:
0470 37 32 30 3a 31 35 30 30 3a 31 61 3a 32 33 30 3a 720:1500:1a:230:
0480 31 62 66 66 3a 66 65 31 30 3a 35 66 62 33 5d 3a 1bff:fe10:5fb3]:
0490 36 31 30
35 32 3b 62 72 61 6e 63 68 3d 7a 39 68 61052;branch=z9h
04a0 47 34 62 4b 34 30 65 31 38 34 34 35 31 32 61 32 G4bK40e1844512a2
04b0 33 34 65 33 32 36 65 66 38 32 32 32 66 38 62 32 34e326ef8222f8b2
04c0 30 34 66 62 0d 0a 4d 61 78 2d 46 6f 72 77 61 72 04fb..Max-Forwar
04d0 64 73 3a 20 31 32 0d 0a 43 6f 6e 74 61 63 74 3a ds: 12..Contact:
04e0 20 22 75 65 41 22 20 3c 73 69 70 3a 5b 32 30 30 "ueA" <sip:[200
04f0 31 3a 37 32 30 3a 31 35 30 30 3a 31 61 3a 32 33 1:720:1500:1a:23
0500 30 3a 31 62 66 66 3a 66 65 31 30 3a 35 66 62 33 0:1bff:fe10:5fb3
0510 5d 3a 36 31 30 35 32 3b 74 72 61 6e 73 70 6f 72 ]:61052;transpor
0520 74 3d 75 64 70 3e 0d 0a 50 2d 50 72 65 66 65 72 t=udp>..P-Prefer
0530 72 65 64 2d 49 64 65 6e 74 69 74 79 3a 20 22 75 red-Identity:
"u
0540 65 41 22 20 3c 73 69 70 3a 75 65 41 40 64 6f 6d eA" <sip:ueA at dom
0550 61 69 6e 41 2e 61 6d 6d 69 2e 64 69 74 2e 75 70 ainA.ammi.dit.up
0560 6d 2e 65 73 3e 3b 74 61 67 3d 31 32 31 32 32 33 m.es>;tag=121223
0570 34 37 0d 0a 50 72 69 76 61 63 79 3a 20 6e 6f 6e 47..Privacy: non
0580 65 0d 0a 50 2d 41 63 63 65 73 73 2d 4e 65 74 77 e..P-Access-Netw
0590 6f 72 6b 2d 49 6e 66 6f 3a 20 33 47 50 50 2d 55 ork-Info: 3GPP-U
05a0 54 52 41 4e 2d 54 44 44 3b 75 74 72 61 6e 2d 63 TRAN-TDD;utran-c
05b0 65 6c 6c 2d 69 64 2d 33 67 70 70 3d 31 38 31 30 ell-id-3gpp=1810
05c0 38 36 0d 0a 41 6c 6c 6f 77 3a 20 49 4e 56 49 54 86..Allow: INVIT
05d0 45 2c 41 43 4b 2c 43 41 4e 43 45 4c 2c 42 59 45 E,ACK,CANCEL,BYE
05e0 2c 50 52 41 43 4b 2c
55 ,PRACK,U
***********************************************************************
If you want the .cap file for open it with ethereal, ask it for me.
Thanks for your help.
______________________________________________
LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y móviles desde 1 céntimo por minuto.
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