|
ru.linux
- RU.LINUX ---------------------------------------------------------------------
From : Artem Babadzhanyants 2:5030/922 17 Jan 2002 01:24:42
To : Eugene B. Berdnikov
Subject : Магия !! :-0
--------------------------------------------------------------------------------
*** Answering a msg posted in area MY.MAIL (MY.MAIL).
Hello Eugene!
31 Dec 01 01:03, Eugene B. Berdnikov wrote to Artem Babadzhanyants:
AB>> Разве пакет прошедший через маскарад и пакет от самого сервера
AB>> будет отличаться для www.soundblaster.com кроме source port ?
EB> Запросто: навскидку mtu/mss, tos, df, ttl, ecn могут отличаться.
EB> Hо чем гадать впустую - лучше посмотреть tcdump -i {if_ext} -nv.
Мда .. действительно ..
А не обьясните, в чем различие и как второе привести к первому ?
Короче :-) Как сделать и куда копать, чтобы поправить ситуацию ?
Пояснение: первый запрос был сделан с сервера
После "=====" идет запрос с машины внутри сети через NAT
00:23:49.370783 195.131.84.53.4665 > 195.128.91.1.80: SWE [tcp sum ok]
4288645106:4288645106(0) win 3840 <mss 960,sackOK,timestamp 35415128
0,nop,wscale 0> (DF) (ttl 64, id 58282, len 60)
00:23:52.362259 195.131.84.53.4665 > 195.128.91.1.80: SWE [tcp sum ok]
4288645106:4288645106(0) win 3840 <mss 960,sackOK,timestamp 35415428
0,nop,wscale 0> (DF) (ttl 64, id 58283, len 60)
00:23:58.362263 195.131.84.53.4665 > 195.128.91.1.80: SWE [tcp sum ok]
4288645106:4288645106(0) win 3840 <mss 960,sackOK,timestamp 35416028
0,nop,wscale 0> (DF) (ttl 64, id 58284, len 60)
>========= далее картинка от запроса с лок. машины
00:26:30.492844 195.131.84.53.2908 > 195.128.91.1.80: S [tcp sum ok]
3433601470:3433601470(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52543, len 48)
00:26:32.022546 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 6577007
win 64860 (DF) (ttl 127, id 52545, len 40)
00:26:32.023014 195.131.84.53.2908 > 195.128.91.1.80: P 0:293(293) ack 1 win
64860 (DF) (ttl 127, id 52546, len 333)
00:26:34.796807 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 1381
win 64860 (DF) (ttl 127, id 52548, len 40)
00:26:35.107888 195.131.84.53.2909 > 195.128.91.1.80: S [tcp sum ok]
3434786470:3434786470(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52550, len 48)
00:26:35.108296 195.131.84.53.2910 > 195.128.91.1.80: S [tcp sum ok]
3434845504:3434845504(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52552, len 48)
00:26:35.108769 195.131.84.53.2911 > 195.128.91.1.80: S [tcp sum ok]
3434895355:3434895355(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52554, len 48)
00:26:35.297548 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 2761
win 64860 (DF) (ttl 127, id 52565, len 40)
00:26:36.703019 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 2761
win 64860 (DF) (ttl 127, id 52567, len 40)
00:26:37.132980 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 5521
win 64860 (DF) (ttl 127, id 52568, len 40)
00:26:37.262479 195.131.84.53.2910 > 195.128.91.1.80: . [tcp sum ok] ack
4282833781 win 64860 (DF) (ttl 127, id 52569, len 40)
00:26:37.262964 195.131.84.53.2910 > 195.128.91.1.80: P 0:316(316) ack 1 win
64860 (DF) (ttl 127, id 52570, len 356)
00:26:37.342518 195.131.84.53.2909 > 195.128.91.1.80: . [tcp sum ok] ack
1460024530 win 64860 (DF) (ttl 127, id 52578, len 40)
00:26:37.342985 195.131.84.53.2909 > 195.128.91.1.80: P 0:300(300) ack 1 win
64860 (DF) (ttl 127, id 52579, len 340)
00:26:37.801184 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 6901
win 64860 (DF) (ttl 127, id 52582, len 40)
00:26:38.101619 195.131.84.53.2911 > 195.128.91.1.80: S [tcp sum ok]
3434895355:3434895355(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52583, len 48)
00:26:38.102523 195.131.84.53.2911 > 195.128.91.1.80: . [tcp sum ok] ack
3848974186 win 64860 (DF) (ttl 127, id 52585, len 40)
00:26:38.102953 195.131.84.53.2911 > 195.128.91.1.80: P 0:308(308) ack 1 win
64860 (DF) (ttl 127, id 52587, len 348)
00:26:38.201777 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 8281
win 64860 (DF) (ttl 127, id 52590, len 40)
00:26:39.682973 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 8281
win 64860 (DF) (ttl 127, id 52592, len 40)
00:26:40.032970 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 8281
win 64860 (DF) (ttl 127, id 52593, len 40)
00:26:40.204818 195.131.84.53.2910 > 195.128.91.1.80: P 0:316(316) ack 1 win
64860 (DF) (ttl 127, id 52594, len 356)
00:26:40.305029 195.131.84.53.2909 > 195.128.91.1.80: P 0:300(300) ack 1 win
64860 (DF) (ttl 127, id 52597, len 340)
00:26:40.593070 195.131.84.53.2908 > 195.128.91.1.80: . [tcp sum ok] ack 12421
win 64860 (DF) (ttl 127, id 52598, len 40)
00:26:40.602508 195.131.84.53.2910 > 195.128.91.1.80: . [tcp sum ok] ack 1 win
64860 (DF) (ttl 127, id 52601, len 40)
00:26:40.603110 195.131.84.53.2915 > 195.128.91.1.80: S [tcp sum ok]
3436440851:3436440851(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52602, len 48)
00:26:40.603569 195.131.84.53.2916 > 195.128.91.1.80: S [tcp sum ok]
3436488534:3436488534(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52604, len 48)
00:26:42.832886 195.131.84.53.2909 > 195.128.91.1.80: F [tcp sum ok] 300:300(0)
ack 166 win 64695 (DF) (ttl 127, id 52624, len 40)
00:26:42.834608 195.131.84.53.2918 > 195.128.91.1.80: S [tcp sum ok]
3437147923:3437147923(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52625, len 48)
00:26:43.268913 195.131.84.53.2908 > 195.128.91.1.80: R [tcp sum ok]
3433601764:3433601764(0) win 0 (DF) (ttl 127, id 52629, len 40)
00:26:43.269518 195.131.84.53.2910 > 195.128.91.1.80: R [tcp sum ok]
3434845821:3434845821(0) win 0 (DF) (ttl 127, id 52630, len 40)
00:26:43.269805 195.131.84.53.2911 > 195.128.91.1.80: R [tcp sum ok]
3434895664:3434895664(0) win 0 (DF) (ttl 127, id 52631, len 40)
00:26:43.275148 195.131.84.53.2919 > 195.128.91.1.80: S [tcp sum ok]
3437309259:3437309259(0) win 64240 <mss 1460,nop,nop,sackOK> (DF) (ttl 127, id
52634, len 48)
00:26:43.372695 195.131.84.53.2910 > 195.128.91.1.80: R [tcp sum ok]
3434845821:3434845821(0) win 0 (ttl 127, id 52636, len 40)
00:26:43.382499 195.131.84.53.2909 > 195.128.91.1.80: . [tcp sum ok] ack 167 win
64695 (DF) (ttl 127, id 52637, len 40)
00:26:43.942976 195.131.84.53.2908 > 195.128.91.1.80: R [tcp sum ok]
3433601764:3433601764(0) win 0 (ttl 127, id 52638, len 40)
00:26:44.403034 195.131.84.53.2908 > 195.128.91.1.80: R [tcp sum ok]
3433601764:3433601764(0) win 0 (ttl 127, id 52639, len 40)
00:26:44.532452 195.131.84.53.2911 > 195.128.91.1.80: R [tcp sum ok]
3434895356:3434895356(0) win 0 (ttl 127, id 52641, len 40)
00:26:44.542454 195.131.84.53.2911 > 195.128.91.1.80: R [tcp sum ok]
3434895664:3434895664(0) win 0 (ttl 127, id 52642, len 40)
00:26:44.972946 195.131.84.53.2908 > 195.128.91.1.80: R [tcp sum ok]
3433601764:3433601764(0) win 0 (ttl 127, id 52647, len 40)
00:26:44.992560 195.131.84.53.2911 > 195.128.91.1.80: R [tcp sum ok]
3434895356:3434895356(0) win 0 (ttl 127, id 52648, len 40)
00:26:45.192566 195.131.84.53.2911 > 195.128.91.1.80: R [tcp sum ok]
3434895664:3434895664(0) win 0 (ttl 127, id 52650, len 40)
00:26:46.312532 195.131.84.53.2910 > 195.128.91.1.80: R [tcp sum ok]
3434845821:3434845821(0) win 0 (ttl 127, id 52653, len 40)
Bye
Artem
---
* Origin: MB-Telescope Station (2:5030/922)
Вернуться к списку тем, сортированных по: возрастание даты уменьшение даты тема автор
|
