22 Jun
2011
22 Jun
'11
5:41 p.m.
Hi Daniel,
On Tue, Jun 21, 2011 at 09:24:26PM +0100, Daniel Case wrote:
I agree that the most likely scenario is my ISP (Sky
Broadband) are
filtering it, it is just weird how I am not getting it back on other
IP's. I have another VPS located in the USA that I have been scanning
as well and that comes back with it closed rather than filtered.
A "tcptraceroute" is useful to see where packets destined for
various ports go to die.
e.g. this one gets all the way:
$ sudo tcptraceroute 212.13.195.33 1720
Selected device br0, address 192.168.0.8, port 55612 for outgoing packets
Tracing the path to 212.13.195.33 on TCP port 1720, 30 hops max
1 192.168.0.7 0.874 ms 0.554 ms 0.722 ms
2 192.168.1.1 1.604 ms 1.724 ms 1.875 ms
3 losubs.subs.dsl3.th-lon.zen.net.uk (62.3.84.25) 12.637 ms 22.460 ms 12.541 ms
4 ge-0-0-0-117.cr2.th-lon.zen.net.uk (62.3.84.197) 11.473 ms 12.240 ms 12.564 ms
5 linx-gw-a.jump.net.uk (195.66.224.34) 12.627 ms 12.931 ms 47.631 ms
6 president.bitfolk.com (85.119.80.16) 12.608 ms 12.418 ms 12.663 ms
7 bitfolk.com (212.13.195.33) [closed] 12.631 ms 12.472 ms 12.662 ms
Cheers,
Andy