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From: "Jeff Ehrenkrantz" <admin@gccomm.net>
To: <freebsd-questions@FreeBSD.ORG>
Subject: possible netmask problem 
Date: Tue, 28 Apr 1998 12:15:33 -0400
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I have an entry found in a routed trace that I can't seem to figure out.
Perhaps someone can tell me why I get it.

Where I am:
$ ifconfig -a
ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 207.8.142.138 netmask 0xffffff00 broadcast 207.8.142.255
        ether 02:60:8c:db:d6:51
tun0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet 127.0.0.1 netmask 0xff000000
        inet 207.8.142.145 netmask 0xffffffff

trace snippet:

-- 22:01:52 --
Tracing actions started
Add interface ed0  207.8.142.138  -->207.8.142.0/24
RCVBUF=61440
turn on RIP
Add interface lo0  127.0.0.1      -->127.0.0.1/32    <LOOPBACK> <PASSIVE>
Add interface lo0  207.8.142.145  -->207.8.142.145/32 <LOOPBACK>
<ALIAS|PASSIVE>
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvv
possible netmask problem between lo0:207.8.142.145/32 and ed0:207.8.142.0/24
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
^^^^^^^
Is this a problem?, actually I figured I don't need routed in this setup but
would still
like to know the logic behind the entry.

Add    207.8.142.145/32-->207.8.142.145    metric=0  lo0 <IF>
Add    127.0.0.1/32    -->127.0.0.1        metric=0  lo0 <IF>
Add    207.8.142.0     -->207.8.142.138    metric=0  ed0 <IF>
-- 22:01:52 --
Add    207.8.132.0     -->207.8.142.3      metric=1  ed0 22:01:52
Add    207.8.140.0     -->207.8.142.3      metric=2  ed0 22:01:52
Add    0.0.0.0         -->207.8.142.3      metric=2  ed0 22:01:52
Add    207.8.142.49/32 -->207.8.142.2      metric=2  ed0 22:01:52
Add    207.8.142.50/32 -->207.8.142.2      metric=2  ed0 22:01:52
Add    207.8.142.51/32 -->207.8.142.2      metric=2  ed0 22:01:52
Add    207.8.142.52/32 -->207.8.142.2      metric=2  ed0 22:01:52
Add    207.8.142.53/32 -->207.8.142.2      metric=2  ed0 22:01:52


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