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From: Raul Zighelboim <mango@staff.communique.net>
To: "'hackers@freebsd.org'" <hackers@freebsd.org>
Subject: maybe a bug ...
Date: Wed, 13 Aug 1997 12:37:09 -0500
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I had this:

kiyoko:~$ ifconfig de0
de0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.4.64.11 netmask 0xffffff00 broadcast 255.255.255.0

and I did the following:
ifconfig de0 10.4.65.11 255.255.255.255 alias
.........some 3 hours of activity.......
ifconfig de0 10.4.65.11 255.255.255.255 delete

and then I tried to connect to 10.4.65.7.  I could not.

The details:

10.4.64.0/24--------ROUTER------10.4.65.0/24

I have a route on ROUTER '10.4.65.11 ---> 10.4.64.11'

netstat -nr show the expected routes, for example:
destination		GATEWAY
10.4.65.7		x:xx:xx:xx:xx:xx	bla bla

were x:xx:xx:xx:xx:xx was the ethernet address of ROUTER

tcpdump would show that this machine was still using 10.4.65.11 as the
source address, even though it was not defined in any of the interfaces.