[support] UMIP: Disappearing packets ???

Arnaud Ebalard arno at natisbad.org
Thu May 14 00:24:18 JST 2009


Hello,

Mattias Blomqvist <mattias.blomqvist at gmail.com> writes:

> Hello (again)
>
> I have a setup with one MN and one HA and a couple of other nodes. The
> MN registers perfectly with the HA and I can ping the MN's HoA from
> other nodes.
> I tried to run telnet to the MN and is able to log in and get a prompt
> and everything seems to work just fine. Doing an "ls /" works fine.
> The problem begins if I try to do "ls -l /". This (obviously) results
> in more data which in turn results in two TCP packets being sent for
> the output data.
> With tcpdump I can see that both arrives at the ip6tnl1 interface that
> mip6d has created. At this point they have the HoA as src and the
> telnet clients address as dst. I have a second tcpdump running on the
> interface that they are sent from the MN on. In this tcpdump I can see
> that the TCP packets have been encapsulated in an outer IPv6 header
> and this header has the CoA as src and the HA as dst. So long,
> everything seems fine. The problem is that the first of the two larger
> packets with the ls output is missing!
> Did it get lost in the kernel? Or where?
>
> If I run telnet directly to the CoA, everything works fine. I get the
> same issue with ssh (to the HoA) but it is easier to follow the
> packets and their contents with telnet.
>
> Tcpdump output below is first from the one running on the ip6tnl1
> interface that mip6d creates and the second output is from the
> interface that the MN uses for communication with the HA. Both outputs
> starts after "ls -l /" has been typed over telnet but before enter has
> been hit so they both start with a CRLF sequence being sent and
> echoed.
> The ack at 00:17:19.109144 on ip6tnl1 results in a tcp resend of the
> lost packet since it expects next byte 3. This resend is also lost.
> This is 100% repeatable and it behaves exactly the same every time.
>
> config file for mip6d is included last.
>
> I know the output is lengthy, just cut away the data parts if you want
> it more compressed.
>
> Any help is greatly apreciated.

Before even looking at the pcap dump, I much say this really really
looks like a pmtud issue. So, before looking in other directions, can
you check the following, Mattias:

 - which version of the kernel you are using?
 - verify there is no router/box in the middle that would prevent ICMPv6
   packet too big to flow (some netfilter config, ...)
 - tell us if you have routers that perform some kind of encapsulation on
   the path, or routers with a lower MTU on one side.

Cheers,

a+

>
> BR,
> Mattias Blomqvist
>
> (Yes, I know the IPv6-address' below aren't real ones. I have an
> isolated IPv6 network for this.)
>
> tcpdump: listening on ip6tnl1, link-type LINUX_SLL (Linux cooked),
> capture size 1500 bytes
> 00:17:15.611996 IP6 (hlim 63, next-header TCP (6) payload length: 22)
> 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: P, cksum 0x7ea5
> (correct), 999588718:999588720(2) ack 3908483949 win 16499
> 	0x0000:  6000 0000 0016 063f 2a03 0b0b 0000 0000  `......?*.......
> 	0x0010:  0000 0000 0000 0007 2a03 0a0a 0000 1300  ........*.......
> 	0x0020:  0000 0000 0000 0001 0407 0017 3b94 836e  ............;..n
> 	0x0030:  e8f6 bb6d 5018 4073 7ea5 0000 0d0a       ...mP. at s~.....
> 00:17:15.645318 IP6 (hlim 64, next-header TCP (6) payload length: 20)
> 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: ., cksum 0xb91a
> (correct), 1:1(0) ack 2 win 4880
> 	0x0000:  6000 0000 0014 0640 2a03 0a0a 0000 1300  `......@*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0b0b 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0007 0017 0407 e8f6 bb6d  ...............m
> 	0x0030:  3b94 8370 5010 1310 b91a 0000            ;..pP.......
> 00:17:15.647338 IP6 (hlim 64, next-header TCP (6) payload length: 22)
> 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: P, cksum 0xac06
> (correct), 1:3(2) ack 2 win 4880
> 	0x0000:  6000 0000 0016 0640 2a03 0a0a 0000 1300  `......@*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0b0b 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0007 0017 0407 e8f6 bb6d  ...............m
> 	0x0030:  3b94 8370 5018 1310 ac06 0000 0d0a       ;..pP.........
> 00:17:15.637899 IP6 (hlim 64, next-header TCP (6) payload length:
> 1240) 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: ., cksum 0xa24e
> (correct), 3:1223(1220) ack 2 win 4880
> 	0x0000:  6000 0000 04d8 0640 2a03 0a0a 0000 1300  `......@*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0b0b 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0007 0017 0407 e8f6 bb6f  ...............o
> 	0x0030:  3b94 8370 5010 1310 a24e 0000 1b5b 3030  ;..pP....N...[00
> 	0x0040:  6d74 6f74 616c 2031 3132 0d0a 6472 7778  mtotal.112..drwx
> 	0x0050:  722d 7872 2d78 2020 3220 726f 6f74 2072  r-xr-x..2.root.r
> 	0x0060:  6f6f 7420 2034 3039 3620 3230 3039 2d30  oot..4096.2009-0
> 	0x0070:  322d 3136 2031 363a 3032 201b 5b30 313b  2-16.16:02..[01;
> 	0x0080:  3334 6d62 696e 1b5b 3030 6d0d 0a64 7277  34mbin.[00m..drw
> 	0x0090:  7872 2d78 722d 7820 2033 2072 6f6f 7420  xr-xr-x..3.root.
> 	0x00a0:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x00b0:  3031 2d31 3020 3032 3a34 3320 1b5b 3031  01-10.02:43..[01
> 	0x00c0:  3b33 346d 626f 6f74 1b5b 3030 6d0d 0a64  ;34mboot.[00m..d
> 	0x00d0:  7277 7872 2d78 722d 7820 2032 2072 6f6f  rwxr-xr-x..2.roo
> 	0x00e0:  7420 726f 6f74 2020 3430 3936 2032 3030  t.root..4096.200
> 	0x00f0:  392d 3032 2d31 3620 3136 3a30 3120 1b5b  9-02-16.16:01..[
> 	0x0100:  3031 3b33 346d 6364 726f 6d1b 5b30 306d  01;34mcdrom.[00m
> 	0x0110:  0d0a 6472 7778 722d 7872 2d78 2031 3020  ..drwxr-xr-x.10.
> 	0x0120:  726f 6f74 2072 6f6f 7420 2033 3132 3020  root.root..3120.
> 	0x0130:  3230 3038 2d30 312d 3136 2030 363a 3235  2008-01-16.06:25
> 	0x0140:  201b 5b30 313b 3334 6d64 6576 1b5b 3030  ..[01;34mdev.[00
> 	0x0150:  6d0d 0a64 7277 7872 2d78 722d 7820 3630  m..drwxr-xr-x.60
> 	0x0160:  2072 6f6f 7420 726f 6f74 2020 3430 3936  .root.root..4096
> 	0x0170:  2032 3030 382d 3031 2d31 3620 3038 3a34  .2008-01-16.08:4
> 	0x0180:  3420 1b5b 3031 3b33 346d 6574 631b 5b30  4..[01;34metc.[0
> 	0x0190:  306d 0d0a 6472 7778 722d 7872 2d78 2020  0m..drwxr-xr-x..
> 	0x01a0:  3320 726f 6f74 2072 6f6f 7420 2034 3039  3.root.root..409
> 	0x01b0:  3620 3230 3039 2d30 322d 3136 2031 363a  6.2009-02-16.16:
> 	0x01c0:  3431 201b 5b30 313b 3334 6d68 6f6d 651b  41..[01;34mhome.
> 	0x01d0:  5b30 306d 0d0a 6c72 7778 7277 7872 7778  [00m..lrwxrwxrwx
> 	0x01e0:  2020 3120 726f 6f74 2072 6f6f 7420 2020  ..1.root.root...
> 	0x01f0:  2032 3220 3230 3038 2d30 312d 3130 2030  .22.2008-01-10.0
> 	0x0200:  323a 3433 201b 5b30 313b 3336 6d69 6e69  2:43..[01;36mini
> 	0x0210:  7472 642e 696d 671b 5b30 306d 202d 3e20  trd.img.[00m.->.
> 	0x0220:  1b5b 3030 6d62 6f6f 742f 696e 6974 7264  .[00mboot/initrd
> 	0x0230:  2e69 6d67 2d32 2e36 2e32 391b 5b30 306d  .img-2.6.29.[00m
> 	0x0240:  0d0a 6c72 7778 7277 7872 7778 2020 3120  ..lrwxrwxrwx..1.
> 	0x0250:  726f 6f74 2072 6f6f 7420 2020 2033 3320  root.root....33.
> 	0x0260:  3230 3038 2d30 312d 3239 2031 373a 3436  2008-01-29.17:46
> 	0x0270:  201b 5b30 313b 3336 6d69 6e69 7472 642e  ..[01;36minitrd.
> 	0x0280:  696d 672e 6f6c 641b 5b30 306d 202d 3e20  img.old.[00m.->.
> 	0x0290:  1b5b 3030 6d62 6f6f 742f 696e 6974 7264  .[00mboot/initrd
> 	0x02a0:  2e69 6d67 2d32 2e36 2e32 342d 312d 6d69  .img-2.6.24-1-mi
> 	0x02b0:  7036 2d36 3836 1b5b 3030 6d0d 0a64 7277  p6-686.[00m..drw
> 	0x02c0:  7872 2d78 722d 7820 3132 2072 6f6f 7420  xr-xr-x.12.root.
> 	0x02d0:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x02e0:  3031 2d32 3920 3137 3a34 3520 1b5b 3031  01-29.17:45..[01
> 	0x02f0:  3b33 346d 6c69 621b 5b30 306d 0d0a 6472  ;34mlib.[00m..dr
> 	0x0300:  7778 722d 7872 2d78 2020 3220 726f 6f74  wxr-xr-x..2.root
> 	0x0310:  2072 6f6f 7420 3439 3135 3220 3230 3039  .root.49152.2009
> 	0x0320:  2d30 322d 3136 2031 353a 3538 201b 5b30  -02-16.15:58..[0
> 	0x0330:  313b 3334 6d6c 6f73 742b 666f 756e 641b  1;34mlost+found.
> 	0x0340:  5b30 306d 0d0a 6472 7778 722d 7872 2d78  [00m..drwxr-xr-x
> 	0x0350:  2020 3220 726f 6f74 2072 6f6f 7420 2034  ..2.root.root..4
> 	0x0360:  3039 3620 3230 3039 2d30 322d 3136 2031  096.2009-02-16.1
> 	0x0370:  353a 3538 201b 5b30 313b 3334 6d6d 6564  5:58..[01;34mmed
> 	0x0380:  6961 1b5b 3030 6d0d 0a64 7277 7872 2d78  ia.[00m..drwxr-x
> 	0x0390:  722d 7820 2032 2072 6f6f 7420 726f 6f74  r-x..2.root.root
> 	0x03a0:  2020 3430 3936 2032 3030 382d 3132 2d30  ..4096.2008-12-0
> 	0x03b0:  3420 3130 3a32 3220 1b5b 3031 3b33 346d  4.10:22..[01;34m
> 	0x03c0:  6d6e 741b 5b30 306d 0d0a 6472 7778 722d  mnt.[00m..drwxr-
> 	0x03d0:  7872 2d78 2020 3320 726f 6f74 2072 6f6f  xr-x..3.root.roo
> 	0x03e0:  7420 2034 3039 3620 3230 3038 2d30 312d  t..4096.2008-01-
> 	0x03f0:  3130 2030 313a 3334 201b 5b30 313b 3334  10.01:34..[01;34
> 	0x0400:  6d6f 7074 1b5b 3030 6d0d 0a64 722d 7872  mopt.[00m..dr-xr
> 	0x0410:  2d78 722d 7820 3635 2072 6f6f 7420 726f  -xr-x.65.root.ro
> 	0x0420:  6f74 2020 2020 2030 2032 3030 382d 3031  ot.....0.2008-01
> 	0x0430:  2d31 3420 3231 3a34 3820 1b5b 3031 3b33  -14.21:48..[01;3
> 	0x0440:  346d 7072 6f63 1b5b 3030 6d0d 0a64 7277  4mproc.[00m..drw
> 	0x0450:  7872 2d78 722d 7820 2036 2072 6f6f 7420  xr-xr-x..6.root.
> 	0x0460:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x0470:  3031 2d31 3620 3139 3a33 3820 1b5b 3031  01-16.19:38..[01
> 	0x0480:  3b33 346d 726f 6f74 1b5b 3030 6d0d 0a64  ;34mroot.[00m..d
> 	0x0490:  7277 7872 2d78 722d 7820 2032 2072 6f6f  rwxr-xr-x..2.roo
> 	0x04a0:  7420 726f 6f74 2020 3430 3936 2032 3030  t.root..4096.200
> 	0x04b0:  392d 3032 2d31 3620 3136 3a34 3120 1b5b  9-02-16.16:41..[
> 	0x04c0:  3031 3b33 346d 7362 696e 1b5b 3030 6d0d  01;34msbin.[00m.
> 	0x04d0:  0a64 7277 7872 2d78 722d 7820 2032 2072  .drwxr-xr-x..2.r
> 	0x04e0:  6f6f 7420 726f 6f74 2020 3430 3936 2032  oot.root..4096.2
> 	0x04f0:  3030 382d 3039 2d31 3620 3039 3a33 3820  008-09-16.09:38.
> 00:17:16.736897 IP6 (hlim 63, next-header TCP (6) payload length: 20)
> 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: ., cksum 0x8bb7
> (correct), 2:2(0) ack 3 win 16497
> 	0x0000:  6000 0000 0014 063f 2a03 0b0b 0000 0000  `......?*.......
> 	0x0010:  0000 0000 0000 0007 2a03 0a0a 0000 1300  ........*.......
> 	0x0020:  0000 0000 0000 0001 0407 0017 3b94 8370  ............;..p
> 	0x0030:  e8f6 bb6f 5010 4071 8bb7 0000            ...oP. at q....
> 00:17:16.737043 IP6 (hlim 64, next-header TCP (6) payload length: 612)
> 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: P, cksum 0x30df
> (correct), 1223:1815(592) ack 2 win 4880
> 	0x0000:  6000 0000 0264 0640 2a03 0a0a 0000 1300  `....d.@*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0b0b 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0007 0017 0407 e8f6 c033  ...............3
> 	0x0030:  3b94 8370 5018 1310 30df 0000 1b5b 3031  ;..pP...0....[01
> 	0x0040:  3b33 346d 7365 6c69 6e75 781b 5b30 306d  ;34mselinux.[00m
> 	0x0050:  0d0a 6472 7778 722d 7872 2d78 2020 3220  ..drwxr-xr-x..2.
> 	0x0060:  726f 6f74 2072 6f6f 7420 2034 3039 3620  root.root..4096.
> 	0x0070:  3230 3039 2d30 322d 3136 2031 353a 3538  2009-02-16.15:58
> 	0x0080:  201b 5b30 313b 3334 6d73 7276 1b5b 3030  ..[01;34msrv.[00
> 	0x0090:  6d0d 0a64 7277 7872 2d78 722d 7820 3132  m..drwxr-xr-x.12
> 	0x00a0:  2072 6f6f 7420 726f 6f74 2020 2020 2030  .root.root.....0
> 	0x00b0:  2032 3030 382d 3031 2d31 3420 3231 3a34  .2008-01-14.21:4
> 	0x00c0:  3820 1b5b 3031 3b33 346d 7379 731b 5b30  8..[01;34msys.[0
> 	0x00d0:  306d 0d0a 6472 7778 7277 7872 7774 2020  0m..drwxrwxrwt..
> 	0x00e0:  3420 726f 6f74 2072 6f6f 7420 2034 3039  4.root.root..409
> 	0x00f0:  3620 3230 3038 2d30 312d 3134 2032 313a  6.2008-01-14.21:
> 	0x0100:  3439 201b 5b33 303b 3432 6d74 6d70 1b5b  49..[30;42mtmp.[
> 	0x0110:  3030 6d0d 0a64 7277 7872 2d78 722d 7820  00m..drwxr-xr-x.
> 	0x0120:  3131 2072 6f6f 7420 726f 6f74 2020 3430  11.root.root..40
> 	0x0130:  3936 2032 3030 392d 3032 2d31 3620 3137  96.2009-02-16.17
> 	0x0140:  3a30 3920 1b5b 3031 3b33 346d 7573 721b  :09..[01;34musr.
> 	0x0150:  5b30 306d 0d0a 6472 7778 722d 7872 2d78  [00m..drwxr-xr-x
> 	0x0160:  2031 3420 726f 6f74 2072 6f6f 7420 2034  .14.root.root..4
> 	0x0170:  3039 3620 3230 3039 2d30 322d 3136 2031  096.2009-02-16.1
> 	0x0180:  373a 3331 201b 5b30 313b 3334 6d76 6172  7:31..[01;34mvar
> 	0x0190:  1b5b 3030 6d0d 0a6c 7277 7872 7778 7277  .[00m..lrwxrwxrw
> 	0x01a0:  7820 2031 2072 6f6f 7420 726f 6f74 2020  x..1.root.root..
> 	0x01b0:  2020 3139 2032 3030 382d 3031 2d31 3020  ..19.2008-01-10.
> 	0x01c0:  3032 3a34 3320 1b5b 3031 3b33 366d 766d  02:43..[01;36mvm
> 	0x01d0:  6c69 6e75 7a1b 5b30 306d 202d 3e20 1b5b  linuz.[00m.->..[
> 	0x01e0:  3030 6d62 6f6f 742f 766d 6c69 6e75 7a2d  00mboot/vmlinuz-
> 	0x01f0:  322e 362e 3239 1b5b 3030 6d0d 0a6c 7277  2.6.29.[00m..lrw
> 	0x0200:  7872 7778 7277 7820 2031 2072 6f6f 7420  xrwxrwx..1.root.
> 	0x0210:  726f 6f74 2020 2020 3330 2032 3030 382d  root....30.2008-
> 	0x0220:  3031 2d32 3920 3137 3a34 3620 1b5b 3031  01-29.17:46..[01
> 	0x0230:  3b33 366d 766d 6c69 6e75 7a2e 6f6c 641b  ;36mvmlinuz.old.
> 	0x0240:  5b30 306d 202d 3e20 1b5b 3030 6d62 6f6f  [00m.->..[00mboo
> 	0x0250:  742f 766d 6c69 6e75 7a2d 322e 362e 3234  t/vmlinuz-2.6.24
> 	0x0260:  2d31 2d6d 6970 362d 3638 361b 5b30 306d  -1-mip6-686.[00m
> 	0x0270:  0d0a 1b5b 6d6d 6174 7469 6173 404d 6f62  ...[mmattias at Mob
> 	0x0280:  696c 652d 7465 7374 3a7e 2420            ile-test:~$.
> 00:17:19.109144 IP6 (hlim 63, next-header TCP (6) payload length: 20)
> 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: ., cksum 0x8bb7
> (correct), 2:2(0) ack 3 win 16497
> 	0x0000:  6000 0000 0014 063f 2a03 0b0b 0000 0000  `......?*.......
> 	0x0010:  0000 0000 0000 0007 2a03 0a0a 0000 1300  ........*.......
> 	0x0020:  0000 0000 0000 0001 0407 0017 3b94 8370  ............;..p
> 	0x0030:  e8f6 bb6f 5010 4071 8bb7 0000            ...oP. at q....
> 00:17:19.207526 IP6 (hlim 64, next-header TCP (6) payload length:
> 1240) 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: ., cksum 0xa24e
> (correct), 3:1223(1220) ack 2 win 4880
> 	0x0000:  6000 0000 04d8 0640 2a03 0a0a 0000 1300  `......@*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0b0b 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0007 0017 0407 e8f6 bb6f  ...............o
> 	0x0030:  3b94 8370 5010 1310 a24e 0000 1b5b 3030  ;..pP....N...[00
> 	0x0040:  6d74 6f74 616c 2031 3132 0d0a 6472 7778  mtotal.112..drwx
> 	0x0050:  722d 7872 2d78 2020 3220 726f 6f74 2072  r-xr-x..2.root.r
> 	0x0060:  6f6f 7420 2034 3039 3620 3230 3039 2d30  oot..4096.2009-0
> 	0x0070:  322d 3136 2031 363a 3032 201b 5b30 313b  2-16.16:02..[01;
> 	0x0080:  3334 6d62 696e 1b5b 3030 6d0d 0a64 7277  34mbin.[00m..drw
> 	0x0090:  7872 2d78 722d 7820 2033 2072 6f6f 7420  xr-xr-x..3.root.
> 	0x00a0:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x00b0:  3031 2d31 3020 3032 3a34 3320 1b5b 3031  01-10.02:43..[01
> 	0x00c0:  3b33 346d 626f 6f74 1b5b 3030 6d0d 0a64  ;34mboot.[00m..d
> 	0x00d0:  7277 7872 2d78 722d 7820 2032 2072 6f6f  rwxr-xr-x..2.roo
> 	0x00e0:  7420 726f 6f74 2020 3430 3936 2032 3030  t.root..4096.200
> 	0x00f0:  392d 3032 2d31 3620 3136 3a30 3120 1b5b  9-02-16.16:01..[
> 	0x0100:  3031 3b33 346d 6364 726f 6d1b 5b30 306d  01;34mcdrom.[00m
> 	0x0110:  0d0a 6472 7778 722d 7872 2d78 2031 3020  ..drwxr-xr-x.10.
> 	0x0120:  726f 6f74 2072 6f6f 7420 2033 3132 3020  root.root..3120.
> 	0x0130:  3230 3038 2d30 312d 3136 2030 363a 3235  2008-01-16.06:25
> 	0x0140:  201b 5b30 313b 3334 6d64 6576 1b5b 3030  ..[01;34mdev.[00
> 	0x0150:  6d0d 0a64 7277 7872 2d78 722d 7820 3630  m..drwxr-xr-x.60
> 	0x0160:  2072 6f6f 7420 726f 6f74 2020 3430 3936  .root.root..4096
> 	0x0170:  2032 3030 382d 3031 2d31 3620 3038 3a34  .2008-01-16.08:4
> 	0x0180:  3420 1b5b 3031 3b33 346d 6574 631b 5b30  4..[01;34metc.[0
> 	0x0190:  306d 0d0a 6472 7778 722d 7872 2d78 2020  0m..drwxr-xr-x..
> 	0x01a0:  3320 726f 6f74 2072 6f6f 7420 2034 3039  3.root.root..409
> 	0x01b0:  3620 3230 3039 2d30 322d 3136 2031 363a  6.2009-02-16.16:
> 	0x01c0:  3431 201b 5b30 313b 3334 6d68 6f6d 651b  41..[01;34mhome.
> 	0x01d0:  5b30 306d 0d0a 6c72 7778 7277 7872 7778  [00m..lrwxrwxrwx
> 	0x01e0:  2020 3120 726f 6f74 2072 6f6f 7420 2020  ..1.root.root...
> 	0x01f0:  2032 3220 3230 3038 2d30 312d 3130 2030  .22.2008-01-10.0
> 	0x0200:  323a 3433 201b 5b30 313b 3336 6d69 6e69  2:43..[01;36mini
> 	0x0210:  7472 642e 696d 671b 5b30 306d 202d 3e20  trd.img.[00m.->.
> 	0x0220:  1b5b 3030 6d62 6f6f 742f 696e 6974 7264  .[00mboot/initrd
> 	0x0230:  2e69 6d67 2d32 2e36 2e32 391b 5b30 306d  .img-2.6.29.[00m
> 	0x0240:  0d0a 6c72 7778 7277 7872 7778 2020 3120  ..lrwxrwxrwx..1.
> 	0x0250:  726f 6f74 2072 6f6f 7420 2020 2033 3320  root.root....33.
> 	0x0260:  3230 3038 2d30 312d 3239 2031 373a 3436  2008-01-29.17:46
> 	0x0270:  201b 5b30 313b 3336 6d69 6e69 7472 642e  ..[01;36minitrd.
> 	0x0280:  696d 672e 6f6c 641b 5b30 306d 202d 3e20  img.old.[00m.->.
> 	0x0290:  1b5b 3030 6d62 6f6f 742f 696e 6974 7264  .[00mboot/initrd
> 	0x02a0:  2e69 6d67 2d32 2e36 2e32 342d 312d 6d69  .img-2.6.24-1-mi
> 	0x02b0:  7036 2d36 3836 1b5b 3030 6d0d 0a64 7277  p6-686.[00m..drw
> 	0x02c0:  7872 2d78 722d 7820 3132 2072 6f6f 7420  xr-xr-x.12.root.
> 	0x02d0:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x02e0:  3031 2d32 3920 3137 3a34 3520 1b5b 3031  01-29.17:45..[01
> 	0x02f0:  3b33 346d 6c69 621b 5b30 306d 0d0a 6472  ;34mlib.[00m..dr
> 	0x0300:  7778 722d 7872 2d78 2020 3220 726f 6f74  wxr-xr-x..2.root
> 	0x0310:  2072 6f6f 7420 3439 3135 3220 3230 3039  .root.49152.2009
> 	0x0320:  2d30 322d 3136 2031 353a 3538 201b 5b30  -02-16.15:58..[0
> 	0x0330:  313b 3334 6d6c 6f73 742b 666f 756e 641b  1;34mlost+found.
> 	0x0340:  5b30 306d 0d0a 6472 7778 722d 7872 2d78  [00m..drwxr-xr-x
> 	0x0350:  2020 3220 726f 6f74 2072 6f6f 7420 2034  ..2.root.root..4
> 	0x0360:  3039 3620 3230 3039 2d30 322d 3136 2031  096.2009-02-16.1
> 	0x0370:  353a 3538 201b 5b30 313b 3334 6d6d 6564  5:58..[01;34mmed
> 	0x0380:  6961 1b5b 3030 6d0d 0a64 7277 7872 2d78  ia.[00m..drwxr-x
> 	0x0390:  722d 7820 2032 2072 6f6f 7420 726f 6f74  r-x..2.root.root
> 	0x03a0:  2020 3430 3936 2032 3030 382d 3132 2d30  ..4096.2008-12-0
> 	0x03b0:  3420 3130 3a32 3220 1b5b 3031 3b33 346d  4.10:22..[01;34m
> 	0x03c0:  6d6e 741b 5b30 306d 0d0a 6472 7778 722d  mnt.[00m..drwxr-
> 	0x03d0:  7872 2d78 2020 3320 726f 6f74 2072 6f6f  xr-x..3.root.roo
> 	0x03e0:  7420 2034 3039 3620 3230 3038 2d30 312d  t..4096.2008-01-
> 	0x03f0:  3130 2030 313a 3334 201b 5b30 313b 3334  10.01:34..[01;34
> 	0x0400:  6d6f 7074 1b5b 3030 6d0d 0a64 722d 7872  mopt.[00m..dr-xr
> 	0x0410:  2d78 722d 7820 3635 2072 6f6f 7420 726f  -xr-x.65.root.ro
> 	0x0420:  6f74 2020 2020 2030 2032 3030 382d 3031  ot.....0.2008-01
> 	0x0430:  2d31 3420 3231 3a34 3820 1b5b 3031 3b33  -14.21:48..[01;3
> 	0x0440:  346d 7072 6f63 1b5b 3030 6d0d 0a64 7277  4mproc.[00m..drw
> 	0x0450:  7872 2d78 722d 7820 2036 2072 6f6f 7420  xr-xr-x..6.root.
> 	0x0460:  726f 6f74 2020 3430 3936 2032 3030 382d  root..4096.2008-
> 	0x0470:  3031 2d31 3620 3139 3a33 3820 1b5b 3031  01-16.19:38..[01
> 	0x0480:  3b33 346d 726f 6f74 1b5b 3030 6d0d 0a64  ;34mroot.[00m..d
> 	0x0490:  7277 7872 2d78 722d 7820 2032 2072 6f6f  rwxr-xr-x..2.roo
> 	0x04a0:  7420 726f 6f74 2020 3430 3936 2032 3030  t.root..4096.200
> 	0x04b0:  392d 3032 2d31 3620 3136 3a34 3120 1b5b  9-02-16.16:41..[
> 	0x04c0:  3031 3b33 346d 7362 696e 1b5b 3030 6d0d  01;34msbin.[00m.
> 	0x04d0:  0a64 7277 7872 2d78 722d 7820 2032 2072  .drwxr-xr-x..2.r
> 	0x04e0:  6f6f 7420 726f 6f74 2020 3430 3936 2032  oot.root..4096.2
> 	0x04f0:  3030 382d 3039 2d31 3620 3039 3a33 3820  008-09-16.09:38.
>
>
>
>
>
> tcpdump: listening on XXXXXXX, link-type LINUX_SLL (Linux cooked),
> capture size 1500 bytes
> 00:17:15.606537 IP6 (hlim 63, next-header IPv6 (41) payload length:
> 62) 2a03:a0a::1 > 2a03:c0c::13: IP6 (hlim 63, next-header TCP (6)
> payload length: 22) 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: P,
> cksum 0x7ea5 (correct), 999588718:999588720(2) ack 3908483949 win
> 16499
> 	0x0000:  6000 0000 003e 293f 2a03 0a0a 0000 0000  `....>)?*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0c0c 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0013 6000 0000 0016 063f  ........`......?
> 	0x0030:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0040:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0050:  0407 0017 3b94 836e e8f6 bb6d 5018 4073  ....;..n...mP. at s
> 	0x0060:  7ea5 0000 0d0a                           ~.....
> 00:17:15.617926 IP6 (hlim 64, next-header IPv6 (41) payload length:
> 60) 2a03:c0c::13 > 2a03:a0a::1: IP6 (hlim 64, next-header TCP (6)
> payload length: 20) 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: .,
> cksum 0xb91a (correct), 1:1(0) ack 2 win 4880
> 	0x0000:  6000 0000 003c 2940 2a03 0c0c 0000 0000  `....<)@*.......
> 	0x0010:  0000 0000 0000 0013 2a03 0a0a 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0001 6000 0000 0014 0640  ........`......@
> 	0x0030:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0040:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0050:  0017 0407 e8f6 bb6d 3b94 8370 5010 1310  .......m;..pP...
> 	0x0060:  b91a 0000                                ....
> 00:17:15.618888 IP6 (hlim 64, next-header IPv6 (41) payload length:
> 62) 2a03:c0c::13 > 2a03:a0a::1: IP6 (hlim 64, next-header TCP (6)
> payload length: 22) 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: P,
> cksum 0xac06 (correct), 1:3(2) ack 2 win 4880
> 	0x0000:  6000 0000 003e 2940 2a03 0c0c 0000 0000  `....>)@*.......
> 	0x0010:  0000 0000 0000 0013 2a03 0a0a 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0001 6000 0000 0016 0640  ........`......@
> 	0x0030:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0040:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0050:  0017 0407 e8f6 bb6d 3b94 8370 5018 1310  .......m;..pP...
> 	0x0060:  ac06 0000 0d0a                           ......
> 00:17:16.736897 IP6 (hlim 63, next-header IPv6 (41) payload length:
> 60) 2a03:a0a::1 > 2a03:c0c::13: IP6 (hlim 63, next-header TCP (6)
> payload length: 20) 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: .,
> cksum 0x8bb7 (correct), 2:2(0) ack 3 win 16497
> 	0x0000:  6000 0000 003c 293f 2a03 0a0a 0000 0000  `....<)?*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0c0c 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0013 6000 0000 0014 063f  ........`......?
> 	0x0030:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0040:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0050:  0407 0017 3b94 8370 e8f6 bb6f 5010 4071  ....;..p...oP. at q
> 	0x0060:  8bb7 0000                                ....
> 00:17:16.737070 IP6 (hlim 64, next-header IPv6 (41) payload length:
> 652) 2a03:c0c::13 > 2a03:a0a::1: IP6 (hlim 64, next-header TCP (6)
> payload length: 612) 2a03:a0a:0:1300::1.telnet > 2a03:b0b::7.1031: P,
> cksum 0x30df (correct), 1223:1815(592) ack 2 win 4880
> 	0x0000:  6000 0000 028c 2940 2a03 0c0c 0000 0000  `.....)@*.......
> 	0x0010:  0000 0000 0000 0013 2a03 0a0a 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0001 6000 0000 0264 0640  ........`....d.@
> 	0x0030:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0040:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0050:  0017 0407 e8f6 c033 3b94 8370 5018 1310  .......3;..pP...
> 	0x0060:  30df 0000 1b5b 3031 3b33 346d 7365 6c69  0....[01;34mseli
> 	0x0070:  6e75 781b 5b30 306d 0d0a 6472 7778 722d  nux.[00m..drwxr-
> 	0x0080:  7872 2d78 2020 3220 726f 6f74 2072 6f6f  xr-x..2.root.roo
> 	0x0090:  7420 2034 3039 3620 3230 3039 2d30 322d  t..4096.2009-02-
> 	0x00a0:  3136 2031 353a 3538 201b 5b30 313b 3334  16.15:58..[01;34
> 	0x00b0:  6d73 7276 1b5b 3030 6d0d 0a64 7277 7872  msrv.[00m..drwxr
> 	0x00c0:  2d78 722d 7820 3132 2072 6f6f 7420 726f  -xr-x.12.root.ro
> 	0x00d0:  6f74 2020 2020 2030 2032 3030 382d 3031  ot.....0.2008-01
> 	0x00e0:  2d31 3420 3231 3a34 3820 1b5b 3031 3b33  -14.21:48..[01;3
> 	0x00f0:  346d 7379 731b 5b30 306d 0d0a 6472 7778  4msys.[00m..drwx
> 	0x0100:  7277 7872 7774 2020 3420 726f 6f74 2072  rwxrwt..4.root.r
> 	0x0110:  6f6f 7420 2034 3039 3620 3230 3038 2d30  oot..4096.2008-0
> 	0x0120:  312d 3134 2032 313a 3439 201b 5b33 303b  1-14.21:49..[30;
> 	0x0130:  3432 6d74 6d70 1b5b 3030 6d0d 0a64 7277  42mtmp.[00m..drw
> 	0x0140:  7872 2d78 722d 7820 3131 2072 6f6f 7420  xr-xr-x.11.root.
> 	0x0150:  726f 6f74 2020 3430 3936 2032 3030 392d  root..4096.2009-
> 	0x0160:  3032 2d31 3620 3137 3a30 3920 1b5b 3031  02-16.17:09..[01
> 	0x0170:  3b33 346d 7573 721b 5b30 306d 0d0a 6472  ;34musr.[00m..dr
> 	0x0180:  7778 722d 7872 2d78 2031 3420 726f 6f74  wxr-xr-x.14.root
> 	0x0190:  2072 6f6f 7420 2034 3039 3620 3230 3039  .root..4096.2009
> 	0x01a0:  2d30 322d 3136 2031 373a 3331 201b 5b30  -02-16.17:31..[0
> 	0x01b0:  313b 3334 6d76 6172 1b5b 3030 6d0d 0a6c  1;34mvar.[00m..l
> 	0x01c0:  7277 7872 7778 7277 7820 2031 2072 6f6f  rwxrwxrwx..1.roo
> 	0x01d0:  7420 726f 6f74 2020 2020 3139 2032 3030  t.root....19.200
> 	0x01e0:  382d 3031 2d31 3020 3032 3a34 3320 1b5b  8-01-10.02:43..[
> 	0x01f0:  3031 3b33 366d 766d 6c69 6e75 7a1b 5b30  01;36mvmlinuz.[0
> 	0x0200:  306d 202d 3e20 1b5b 3030 6d62 6f6f 742f  0m.->..[00mboot/
> 	0x0210:  766d 6c69 6e75 7a2d 322e 362e 3239 1b5b  vmlinuz-2.6.29.[
> 	0x0220:  3030 6d0d 0a6c 7277 7872 7778 7277 7820  00m..lrwxrwxrwx.
> 	0x0230:  2031 2072 6f6f 7420 726f 6f74 2020 2020  .1.root.root....
> 	0x0240:  3330 2032 3030 382d 3031 2d32 3920 3137  30.2008-01-29.17
> 	0x0250:  3a34 3620 1b5b 3031 3b33 366d 766d 6c69  :46..[01;36mvmli
> 	0x0260:  6e75 7a2e 6f6c 641b 5b30 306d 202d 3e20  nuz.old.[00m.->.
> 	0x0270:  1b5b 3030 6d62 6f6f 742f 766d 6c69 6e75  .[00mboot/vmlinu
> 	0x0280:  7a2d 322e 362e 3234 2d31 2d6d 6970 362d  z-2.6.24-1-mip6-
> 	0x0290:  3638 361b 5b30 306d 0d0a 1b5b 6d6d 6174  686.[00m...[mmat
> 	0x02a0:  7469 6173 404d 6f62 696c 652d 7465 7374  tias at Mobile-test
> 	0x02b0:  3a7e 2420                                :~$.
> 00:17:19.109144 IP6 (hlim 63, next-header IPv6 (41) payload length:
> 60) 2a03:a0a::1 > 2a03:c0c::13: IP6 (hlim 63, next-header TCP (6)
> payload length: 20) 2a03:b0b::7.1031 > 2a03:a0a:0:1300::1.telnet: .,
> cksum 0x8bb7 (correct), 2:2(0) ack 3 win 16497
> 	0x0000:  6000 0000 003c 293f 2a03 0a0a 0000 0000  `....<)?*.......
> 	0x0010:  0000 0000 0000 0001 2a03 0c0c 0000 0000  ........*.......
> 	0x0020:  0000 0000 0000 0013 6000 0000 0014 063f  ........`......?
> 	0x0030:  2a03 0b0b 0000 0000 0000 0000 0000 0007  *...............
> 	0x0040:  2a03 0a0a 0000 1300 0000 0000 0000 0001  *...............
> 	0x0050:  0407 0017 3b94 8370 e8f6 bb6f 5010 4071  ....;..p...oP. at q
> 	0x0060:  8bb7 0000                                ....
>
>
>
> Mobile-test:~# cat /etc/mip6d.conf
> NodeConfig MN;
>
> ## If set to > 0, will not detach from tty
> DebugLevel 10;
>
> ## Support route optimization with other MNs
> DoRouteOptimizationCN disabled;
>
> ## Use route optimization with CNs
> DoRouteOptimizationMN disabled;
>
> UseCnBuAck enabled;
>
> MnDiscardHaParamProb enabled;
>
> Interface "XXXXXXX" {
> 	Tunnel enabled;
> }
>
> MnRouterProbes 1;
>
> MnHomeLink "XXXXXXX" {
> 	HomeAddress 2a03:a0a:0:1300::1/32;
> 	HomeAgentAddress 2a03:a0a::1;
> }
>
> ##
> ## IPsec configuration
> ##
>
> UseMnHaIPsec disabled;
> KeyMngMobCapability disabled;
>
> InitialBindackTimeoutFirstReg 8.0;
> InitialBindackTimeoutReReg 8.0;
> SendMobPfxSols disabled;
> #InitialSolicitTimer 8.0;

;-)



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