Date: Thu, 21 Nov 2002 16:33:22 -0500 From: Don Bowman <don@sandvine.com> To: 'Wes Peters' <wes@softweyr.com>, Archie Cobbs <archie@dellroad.org> Cc: freebsd-net@freebsd.org Subject: RE: Sockets and changing IP addresses Message-ID: <FE045D4D9F7AED4CBFF1B3B813C8533701022FEB@mail.sandvine.com>
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> From: Wes Peters [mailto:wes@softweyr.com] > Archie Cobbs wrote: > > > > I'm curious what -net's opinion is on PR kern/38544: > > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/38554 > > > > In summary: if you have a connected socket whose local IP address > > is X, and then change the interface IP address from X to Y, then > > packets written out by the socket will continue to be transmitted > > with source IP address X. > > > > Do people agree that this is a bug and should be fixed? > > Yes. The other end can't possibly reply to address X, so the > connection > is broken at this point. > I think the current behaviour is correct. Since the IP->MAC lookup will remain cached, the communication will continue to work to the old IP. Changing the IP on the connected socket will make the connection drop. The best case is the the way it works. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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