Rotterdam:
Mon Oct 13 11:21:09 2014 us=609583 UDPv4 link remote: [AF_INET]31.204.150.106:1149
...
Mon Oct 13 11:21:14 2014 us=623065 /sbin/ifconfig tun2 10.16.11.7 netmask 255.255.255.128 mtu 1500 broadcast 10.16.11.127
...
Mon Oct 13 11:21:17 2014 us=68478 Initialization Sequence Completed
route -n | grep 10.16.11
...
10.16.11.0 0.0.0.0 255.255.255.128 U 0 0 0 tun2
10.16.11.0 0.0.0.0 255.255.255.0 U 0 0 0 tun2
...
ping 10.16.11.1
PING 10.16.11.1 (10.16.11.1) 56(84) bytes of data.
64 bytes from 10.16.11.1: icmp_req=1 ttl=64 time=27.8 ms
64 bytes from 10.16.11.1: icmp_req=2 ttl=64 time=30.6 ms
tcpdump -vvv -i tun2
tcpdump: listening on tun2, link-type RAW (Raw IP), capture size 65535 bytes
...
14:21:00.048917 IP (tos 0x0, ttl 63, id 65277, offset 0, flags [DF], proto TCP (6), length 52)
10.16.11.7.38778 > 10.16.11.1.3128: Flags [.], cksum 0x32af (correct), seq 574, ack 7641, win 200, options [nop,nop,TS val 3864874191 ecr 2532197968], length 0
14:21:00.048983 IP (tos 0x0, ttl 64, id 11163, offset 0, flags [DF], proto TCP (6), length 577)
10.16.11.1.3128 > 10.16.11.7.38778: Flags [P.], cksum 0x3fd9 (correct), seq 7641:8166, ack 574, win 123, options [nop,nop,TS val 2532197968 ecr 3864874184], length 525
==> Rotterdam proxy klappt
===================================================================================================
Amsterdam:
Wed Oct 15 12:29:45 2014 us=860921 UDPv4 link remote: [AF_INET]37.48.74.75:1151
...
Wed Oct 15 12:29:49 2014 us=46820 /sbin/ifconfig tun3 10.15.12.12 netmask 255.255.255.128 mtu 1500 broadcast 10.15.12.127
...
Wed Oct 15 12:29:51 2014 us=438781 Initialization Sequence Completed
route -n | grep 10.15.12
...
10.15.12.0 0.0.0.0 255.255.255.128 U 0 0 0 tun3
10.15.12.0 0.0.0.0 255.255.255.0 U 0 0 0 tun3
ping 10.15.12.1
PING 10.15.12.1 (10.15.12.1) 56(84) bytes of data.
.... nada
Amsterdam über Proxy geht nicht:
tcpdump -vvv -i tun3
tcpdump: listening on tun3, link-type RAW (Raw IP), capture size 65535 bytes
...
14:15:57.696083 IP (tos 0x0, ttl 63, id 22159, offset 0, flags [DF], proto TCP (6), length 60)
10.15.12.12.49233 > 10.15.12.1.3128: Flags [S], cksum 0xb49a (correct), seq 83194628, win 5840, options [mss 1460,sackOK,TS val 3864798603 ecr 0,nop,wscale 7], length 0
14:16:00.694908 IP (tos 0x0, ttl 63, id 22160, offset 0, flags [DF], proto TCP (6), length 60)
10.15.12.12.49233 > 10.15.12.1.3128: Flags [S], cksum 0xb1ac (correct), seq 83194628, win 5840, options [mss 1460,sackOK,TS val 3864799353 ecr 0,nop,wscale 7], length 0
14:16:05.069238 IP (tos 0x0, ttl 63, id 2739, offset 0, flags [DF], proto TCP (6), length 60)
10.15.12.12.36187 > cache.google.com.www: Flags [S], cksum 0x2f09 (correct), seq 1953572365, win 5840, options [mss 1460,sackOK,TS val 3864800446 ecr 0,nop,wscale 7], length 0
14:16:05.089164 IP (tos 0x0, ttl 55, id 61232, offset 0, flags [none], proto TCP (6), length 60)
cache.google.com.www > 10.15.12.12.36187: Flags [S.], cksum 0x7d64 (correct), seq 833878171, ack 1953572366, win 28960, options [mss 1154,sackOK,TS val 984740724 ecr 3864800446,nop,wscale 7], length 0
ersten zwei Zeilen: Connection timed out
letzten Zeilen direkt ohne proxy ==> klappt