Subject: Re: Kill socket for certain routes
To: Steven M. Bellovin <firstname.lastname@example.org>
From: Greg Troxel <email@example.com>
Date: 12/09/2006 08:29:27
"Steven M. Bellovin" <firstname.lastname@example.org> writes:
> I have a similar need. In particular, I have an EVDO wireless card
> which is less happy -- i.e., it often drops the call -- if it sees an
> outbound packet with an invalid source address.=20=20
> What I'd really like is an ifconfig or sysctl option preventing a
> packet from leaving an interface if the source address doesn't match.
> Since that doesn't exist, my ppp-up and ppp-down scripts manipulate my
> pf or ipf filters to do the same thing.
But what you want really is mostly a firewall feature. I can see an
ifconfig flag to say 'only pass packets matching my src addr', though.
That would make things easier.
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