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From: phil@BRL.ARPA (Phil Dykstra)
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  Multiple Internet addresses
Message-ID: <8709171941.aa25446@SMOKE.BRL.ARPA>
Date: Thu, 17-Sep-87 19:41:20 EDT
Article-I.D.: SMOKE.8709171941.aa25446
Posted: Thu Sep 17 19:41:20 1987
Date-Received: Sun, 20-Sep-87 04:52:20 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 9

Mark,

You guessed correctly.  When the current default route goes away "router"
crafts up a new default entry, removes the old one, and then removes any
references to the old default (letting the kernal rebind to the new one).
The end result is that your applications can usually keep on talking without
realizing that their route has been changed.

- Phil