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Date:      Tue, 16 Feb 1999 10:45:19 +0100 (CET)
From:      Dominik Brettnacher <domi@saargate.de>
To:        "rene@canyon.demon.nl" <rene@canyon.demon.nl>
Cc:        freebsd-isdn@freebsd.org
Subject:   Re: -current, dial-on-demand, hang up the phone?
Message-ID:  <Pine.BSF.4.10.9902161044410.4771-100000@dominik.saargate.de>
In-Reply-To: <fc.3b9aca00509e64ff3b9aca00ff649e50.ffb4a@saargate.de>

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On Mon, 15 Feb 1999, rene@canyon.demon.nl wrote:

> The biggest problem that a filter will have is dns lookups, if you
> block them, you effectively block auto dialing for anything (most
> connections start by looking up a host and then connecting...). The
> only strange effect that I observed is that if you change "deny" (in
> the ipfw rule) to "unreach host", the connection will still be
> initiated. I presume that the ICMP package that is send will go via
> the interface and cause this "wake-up".

Maybe it helps a bit when you set up a caching-only nameserver. 


-- 
Dominik


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