From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
To: vii@altern.org (John Fremlin)
Cc: linux-kernel@vger.kernel.org, netdev@oss.sgi.com,
paulus@linuxcare.com, linux-ppp@vger.kernel.org,
linux-net@vger.kernel.org
Subject: Re: [PATCH] dynamic IP support for 2.4.0 (SIOCKILLADDR)
Date: Sun, 28 Jan 2001 21:45:02 -0500 (EST) [thread overview]
Message-ID: <200101290245.f0T2j2Y438757@saturn.cs.uml.edu> (raw)
In-Reply-To: <m2d7d838sj.fsf@boreas.yi.org.> from "John Fremlin" at Jan 27, 2001 10:54:51 PM
John Fremlin writes:
> When the IP address of an interface changes, TCP connections with the
> old source address are useless. Applications are not notified of this
> and time out ordinarily, just as if nothing had happened. This is
> behaviour isn't very helpful when you have a dynamic IP and know
> you're probably not going to get the old one back. In that case, you
...
> I patched userspace ppp-2.4.0 to use this functionality. It would be
> better if SIOCKILLADDR were not used until we are sure that the new IP
> is in fact different from the old one, but pppd in demand mode would
I get the same IP about 2/3 of the time, so it is pretty important
to avoid killing connections until after the new IP is known.
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next prev parent reply other threads:[~2001-01-29 2:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-27 22:54 John Fremlin
2001-01-29 2:45 ` Albert D. Cahalan [this message]
2001-01-29 12:59 ` Andi Kleen
2001-01-29 18:31 ` Jamie Lokier
2001-01-29 21:08 ` Andi Kleen
2001-01-30 0:47 ` John Fremlin
2001-02-01 5:56 ` Ralf Baechle
2001-02-04 22:21 ` Mark Cooke
2001-01-30 0:43 ` John Fremlin
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