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Date:      Fri, 29 Dec 1995 14:10:46 +0100 (MET)
From:      guido@gvr.win.tue.nl (Guido van Rooij)
To:        guido@IAEhv.nl (Guido van Rooij)
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: bug in UDP stack with our aliasing scheme :-(
Message-ID:  <199512291310.OAA28407@gvr.win.tue.nl>
In-Reply-To: <199512291149.MAA13378@iaehv.IAEhv.nl> from "Guido van Rooij" at Dec 29, 95 12:49:46 pm

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Guido van Rooij wrote:
> 
> This definately is a bug. 
> 

The reason the apcket gets delivered multiple times is found in udp_input, in
the check if the packet is send to a multicast or broadcast addres.
in_broadcast says it is a broadcast adres.

I think we ought reconsidering why the netmask of an ip alias on the same
subnet as the `real' ip adres is to be set to 0xffffffff in stead of
the real subnet mask. This definately breaks several things.

-Guido



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