UAMALLOWED and HTTPS (to select.worldpay.com)

Derek C derekchilli at hssl.ie
Wed Apr 29 14:13:44 UTC 2009


Hi Johan,

> Best to use:
> tcpdump -vvntttt -s 1500 -i ath0 (-s 1500 makes it capture the whole
> packet, and you then get more info)

Without using Firefox and only telnet (because my problem seems to be that
I don't seem to be able to establish a socket connection) here is the
output from tcpdump -vvntttt -s 1500 -i ath0 when I try to "telnet
155.136.66.34 443".  I'll get a full dump for Firefox too but I also want
to see if I have this problem if I uamallow other HTTPs servers out there
and not just the Worldpay payment gateway.

Results from "tcpdump -vvntttt -s 1500 -i ath0" when doing "telnet
155.136.66.34 443": -

2009-04-29 15:10:06.083836 IP (tos 0x10, ttl 64, id 40577, offset 0, flags
[DF], proto TCP (6), length 60) 192.168.182.9.38910 > 155.136.66.34.443:
S, cksum 0x9078 (correct), 3501107707:3501107707(0) win 5840 <mss
1460,sackOK,timestamp 8271738 0,nop,wscale 6>
2009-04-29 15:10:06.114643 IP (tos 0x0, ttl 238, id 2, offset 0, flags
[none], proto TCP (6), length 44) 155.136.66.34.443 > 192.168.182.9.38910:
S, cksum 0xc430 (correct), 1660020786:1660020786(0) ack 3501107708 win
8192 <mss 1460>
2009-04-29 15:10:06.114717 IP (tos 0x10, ttl 64, id 40578, offset 0, flags
[DF], proto TCP (6), length 40) 192.168.182.9.38910 > 155.136.66.34.443:
., cksum 0xe51d (correct), 1:1(0) ack 1 win 5840
2009-04-29 15:10:06.115111 IP (tos 0x0, ttl 238, id 3, offset 0, flags
[none], proto TCP (6), length 44) 155.136.66.34.443 > 192.168.182.9.38910:
S, cksum 0xa42f (correct), 1660020787:1660020787(0) ack 3501107708 win
16384 <mss 1460>
2009-04-29 15:10:06.115144 IP (tos 0x0, ttl 64, id 0, offset 0, flags
[DF], proto TCP (6), length 40) 192.168.182.9.38910 > 155.136.66.34.443:
R, cksum 0x471f (correct), 3501107708:3501107708(0) win 0



-- 
Derek C
In Ireland




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