Subject: Re: no v4, slip this time
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Michael Richardson <firstname.lastname@example.org>
Date: 07/17/2002 19:42:49
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>>>>> "der" == der Mouse <mouse@Rodents.Montreal.QC.CA> writes:
>> But, the IP encapsulation stuff can be pretty simple - why not just
>> run PPP without LCP, etc. - just use PPP encapsulation. At least
>> stuff like tcpdump will understand it.
der> That's an attractive option; I didn't know it could be done. How
der> I go about it?
der> It's not clear whether you're proposing I use some (hidden?) option to
der> pppd that bypasses most of its code, or write an slattach-alike that
I know of no such option, but you could certainly add on.
Knowing you, I'd go the "slattach" way. The kernel then does the data
encap/decap for you.
der> Perhaps I'm just exposing my ignorance of the PPP implementation here?
Go read the spec. PPP, particularly sync-PPP, is VERY simple.
The 1/2-byte protocol number encoding is a little bizarre at first, but
there are some good noise-resistance reasons there. This is Bill Simpson at
] ON HUMILITY: to err is human. To moo, bovine. | firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[
] email@example.com http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another NetBSD/notebook using, kernel hacking, security guy"); [
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Comment: Finger me for keys
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