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List:       freebsd-hackers
Subject:    Re: FreeBSD and IP tunneling
From:       Julian Assange <proff () suburbia ! net>
Date:       1996-10-31 0:46:40
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> Packets sent on the tun* interfaces show up as data to be read on /dev/tun*.
> Data written on /dev/tun* shows up as input packets on the tun* interfaces.
> So, if you want to do UDP encapsulated tunnelling, you should do something like

Are there as yet no userland tools to do this? It seems like something that
should be addressed. What about IPIP? Writing can be done easily enough with
IP_HDRINCL, but how do you go about reading such packets short of bpf?

-- 
"Of all tyrannies a tyranny sincerely  exercised for the good of its victims  
 may be the most  oppressive.  It may be better to live under  robber barons  
 than  under  omnipotent  moral busybodies,  The robber baron's  cruelty may  
 sometimes sleep,  his cupidity may at some point be satiated; but those who  
 torment us for own good  will torment us  without end,  for they do so with 
 the approval of their own conscience."    -   C.S. Lewis, _God in the Dock_ 
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|Julian Assange RSO   | PO Box 2031 BARKER | Secret Analytic Guy Union        |
|proff@suburbia.net   | VIC 3122 AUSTRALIA | finger for PGP key hash ID =     |
|proff@gnu.ai.mit.edu | FAX +61-3-98199066 | C7F81C2AA32D7D4E4D360A2ED2098E0D |
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