From: Jerome Petazzoni <skaya@enix.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Help!! Cisco --> Linux Tunneling via NOS Encapsula
Date: Wed, 09 Jan 2002 10:34:24 +0000 [thread overview]
Message-ID: <marc-lartc-101057251713164@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101051384924316@msgid-missing>
> I've searched the net for a little while and to me it seems like NOS is
> a normal ipip tunnel but using ipprotocol 94 instead of 4
[...]
> So if you change the value of IPPROTO_IPIP to 94 and recompile your kernel
> it should work.
it could be nice to have a iptables mangle target allowing arbitrary
modification of packets ... I believe the protocol field is at a fixed
offset, so that might work, or am I wrong ? it might also be possible
to tweak UDP packets to TCP packets and reversely, to bypass dumb firewalls
blocking UDP packets (but not doing stateful filtering). if that sounds
technically ok, I might write the iptables target to do that ... it should
be easy, anyway.
Jerome Petazzoni <skaya at enix dot org>
--
'I don't like to ask them questions.'
'Why not?'
'They might give me answers. And then what would I do?'
(Lords and Ladies)
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/
next prev parent reply other threads:[~2002-01-09 10:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-08 18:16 [LARTC] Help!! Cisco --> Linux Tunneling via NOS Encapsulation Juda Barnes
2002-01-08 19:01 ` Martin Josefsson
2002-01-09 10:34 ` Jerome Petazzoni [this message]
2002-01-12 23:10 ` [LARTC] Help!! Cisco --> Linux Tunneling via NOS Encapsula Juda Barnes
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=marc-lartc-101057251713164@msgid-missing \
--to=skaya@enix.org \
--cc=lartc@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox