Date: Sun, 7 Sep 1997 22:25:32 +1000 (EST) From: "Daniel O'Callaghan" <danny@panda.hilink.com.au> To: doconnor@ist.flinders.edu.au Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Divert sockets.. Message-ID: <Pine.BSF.3.91.970907222409.818S@panda.hilink.com.au> In-Reply-To: <199709070853.SAA03149@holly.rd.net>
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On Sun, 7 Sep 1997, Daniel J. O'Connor wrote: > Hi, > I was wondering if its possible to write a program which would do > 'dial on demand', by grabbing packets, and seeing if they are destined > to go out of the system, and if so, run a script(which would cause a > dialup). I know ijppp can do this, but I have problems with ijppp =) > The only problem I can see is that since a default route wouldn't be > established yet(since you aren't dialed up), the packets would be > killed off before they pass through a divert socket.(I don't know much > about how that stuff works :) You could do it with divert(4) - divert an incoming packet, rather than an outgoing packet, and only put it back into the kernel if the link is up. /* Daniel O'Callaghan */ /* HiLink Internet <http://www.hilink.com.au/>; danny@hilink.com.au */ /* FreeBSD - works hard, plays hard... danny@freebsd.org */
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