Firewall Wizards mailing list archives
RE: VPN Problems
From: Ben Nagy <ben.nagy () marconi com au>
Date: Tue, 14 Aug 2001 12:58:49 +1000
Hping2 can be used to do this under linux - you can specify protocol and TTL. I've also seen an application around which has a script wrapper for Hping2 to kludge a protocol traceroute, but can't remember where, sorry. Link: http://sourceforge.net/projects/hping2/ Cheers, -- Ben Nagy Network Security Specialist Marconi Services Australia Pty Ltd Mb: +61 414 411 520 PGP Key ID: 0x1A86E304
-----Original Message----- From: Lucas Thompson [mailto:Lucas.Thompson () watchguard com] Sent: Tuesday, August 14, 2001 7:49 AM To: 'Ryan Russell'; Jason Wu Cc: firewall-wizards () nfr com Subject: RE: [fw-wiz] VPN Problems This is very often a problem where ISPs filter IP 50 or 51. A really good way to test it is to use the traceroute that comes with OpenBSD. Openbsd's traceroute allows you to use arbitrary IP protocol numbers instead of just UDP or ICMP like most of them. Then sniff at your site(s) to see if it gets through. I just wish I had a Linux port of it :) lucas
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Current thread:
- VPN Problems Jason Wu (Aug 10)
- Re: VPN Problems Ryan Russell (Aug 11)
- <Possible follow-ups>
- RE: VPN Problems Lucas Thompson (Aug 13)
- RE: VPN Problems - Good traceroute tools. Peter Lukas (Aug 16)
- RE: VPN Problems Walters, Thomas B (Aug 16)
- RE: VPN Problems Ben Nagy (Aug 16)
- RE: VPN Problems Bradley Schatz (Aug 16)