All pastes #2133905 Raw Edit

Miscellany

public text v1 · immutable
#2133905 ·published 2012-03-30 10:36 UTC
rendered paste body
192.168.50.30 ---- [em0]router ---- internet ---- router2 ---- 192.168.75.51

192.168.50.30:
~ $ lynx 192.168.75.51

Looking up 192.168.75.51 first
Looking up 192.168.75.51
Making HTTP connection to 192.168.75.51
Alert!: Unable to connect to remote host.

lynx: Can't access startfile http://192.168.75.51/

router2:

~ # tcpdump -neti enc0 
tcpdump: listening on enc0, link-type ENC
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678576 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656062 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656455 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678588 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656659 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204657055 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678612 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204657859 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204658255 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678660 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204660258 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204660675 2593678576,nop,wscale 0> (DF) (encap)

router[enc0]:
~ # tcpdump -enti enc0
tcpdump: listening on enc0, link-type ENC
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678576 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656062 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656455 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678588 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204656659 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204657055 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678612 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204657859 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204658255 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0xec9ed0f9: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678660 0> (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204660258 2593678576,nop,wscale 0> (DF) (encap)
(authentic,confidential): SPI 0x16c57378: 192.168.75.51.80 > 192.168.50.30.8143: S 958328641:958328641(0) ack 1758554338 win 5792 <mss 1460,sackOK,timestamp 204660675 2593678576,nop,wscale 0> (DF) (encap)

router[em0]:
~ # tcpdump -enti em0 host 192.168.75.51
tcpdump: listening on em0, link-type EN10MB
00:0e:0c:d7:d1:d1 00:1b:21:3a:2a:53 0800 78: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678576 0> (DF)
00:0e:0c:d7:d1:d1 00:1b:21:3a:2a:53 0800 78: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678588 0> (DF)
00:0e:0c:d7:d1:d1 00:1b:21:3a:2a:53 0800 78: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678612 0> (DF)
00:0e:0c:d7:d1:d1 00:1b:21:3a:2a:53 0800 78: 192.168.50.30.8143 > 192.168.75.51.80: S 1758554337:1758554337(0) win 16384 <mss 1460,nop,nop,sackOK,nop,wscale 3,nop,nop,timestamp 2593678660 0> (DF)