comhem_server

public text v1 · immutable
#1430307
·published 2009-05-21 21:26 UTC
root@server:~# tcpdump -n -vv 'tcp port 65095'
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes

23:08:29.534901 IP (tos 0x0, ttl 119, id 40155, offset 0, flags [DF], proto TCP (6), length 48)
    CLIENT.2235 > SERVER.65095: Flags [S], cksum 0x67e0 (correct), seq 4268705029, win 64240, options [mss 1460,nop,nop,sackOK], length 0
	
	
23:08:29.534935 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 48)
    SERVER.65095 > CLIENT.2235: Flags [S.], cksum 0x3624 (correct), seq 2899142910, ack 4268705030, win 5840, options [mss 1460,nop,nop,sackOK], length 0
	
23:08:29.549547 IP (tos 0x0, ttl 119, id 40159, offset 0, flags [DF], proto TCP (6), length 40)
    CLIENT.2235 > SERVER.65095: Flags [.], cksum 0x7ec7 (correct), seq 1, ack 1, win 64240, length 0
	
23:08:29.569483 IP (tos 0x0, ttl 119, id 40176, offset 0, flags [DF], proto TCP (6), length 44)
    CLIENT.2235 > SERVER.65095: Flags [P.], cksum 0x79b7 (correct), seq 1:5, ack 1, win 64240, length 4
	
23:08:29.569500 IP (tos 0x0, ttl 64, id 50092, offset 0, flags [DF], proto TCP (6), length 40)
    SERVER.65095 > CLIENT.2235: Flags [.], cksum 0x62e4 (correct), seq 1, ack 5, win 5840, length 0
	
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Följande paket SKICKADE servern. För klienten var det tydligen också det sista.
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23:08:29.570051 IP (tos 0x0, ttl 64, id 50093, offset 0, flags [DF], proto TCP (6), length 42)
    SERVER.65095 > CLIENT.2235: Flags [P.], cksum 0xd5f2 (incorrect -> 0x5dd8), seq 1:3, ack 5, win 5840, length 2

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Följande skedde ej på klientsidan
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23:08:29.582563 IP (tos 0x0, ttl 56, id 13330, offset 0, flags [none], proto TCP (6), length 40)
    CLIENT.2235 > SERVER.65095: Flags [R.], cksum 0xfc35 (correct), seq 5, ack 3, win 32120, length 0
	
23:08:29.599505 IP (tos 0x0, ttl 119, id 40186, offset 0, flags [DF], proto TCP (6), length 40)
    CLIENT.2235 > SERVER.65095: Flags [.], cksum 0x7ec3 (correct), seq 5, ack 1, win 64240, length 0
	
23:08:29.599522 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 40)
    SERVER.65095 > CLIENT.2235: Flags [R], cksum 0xbd3a (correct), seq 2899142911, win 0, length 0