From owner-freebsd-bugs  Wed Feb 23 11:10: 7 2000
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Message-Id: <200002231904.UAA83978@internal>
Date: Wed, 23 Feb 2000 20:04:02 +0100 (CET)
From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
To: FreeBSD-gnats-submit@freebsd.org
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Subject: bin/16941: routed: possible netmask problem between fxp0:192.168.1.4/32 and fxp0:192.168.1.0/24
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>Number:         16941
>Category:       bin
>Synopsis:       routed: possible netmask problem between fxp0:192.168.1.4/32 and fxp0:192.168.1.0/24
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Feb 23 11:10:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Andre Albsmeier
>Release:        FreeBSD 3.4-STABLE i386
>Organization:
<
>Environment:

FreeBSD 3.4-STABLE with the routed changes of Feb 17.

>Description:

There have been various changes to routed on Feb 17. I am now
experiencing a strange message when routed is started:

routed: possible netmask problem between fxp0:192.168.1.4/32 and fxp0:192.168.1.0/24
routed: Send mcast sendto(fxp0, 224.0.0.9.520): No route to host

If have the following ifconfig lines on the machine in question:

ifconfig_fxp0="inet 192.168.1.3 media 100BaseTX mediaopt full-duplex"
ifconfig_fxp0_alias0="inet 192.168.1.4 netmask 0xFFFFFFFF"

As we can see, 192.168.1.4 is an alias for the machine.
ifconfig -a tells me:

fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 192.168.1.3 netmask 0xffffff00 broadcast 192.168.1.255
        inet 192.168.1.4 netmask 0xffffffff broadcast 192.168.1.4
        ether 00:a0:c9:ca:18:64 
        media: 100baseTX <full-duplex> status: active
        supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP


I have never had problems with this setup. OK, I still don't
have problems (everything is working) but the message is confusing.
I assume it would go away with a different netmask for the alias
but this would be wrong, I think.

>How-To-Repeat:

Configure a machine similar as above. Start routed.

>Fix:
	
unknown

>Release-Note:
>Audit-Trail:
>Unformatted:


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