Subject: Re: Broadcasting to 255.255.255.255
To: Johnny Billquist <bqt@softjar.se>
From: =?ISO-8859-1?Q?Andr=E9?= Wienck <awienck@solnet.ch>
List: netbsd-users
Date: 07/20/2007 12:40:30
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Salut,

On Fri, 20 Jul 2007 11:12:51 +0200, Johnny Billquist
<bqt@softjar.se> wrote:
> > - only allow it to broadcast packets to all interfaces.
>=20
> That would actually be rather nice. I didn't think of that one, but it=20
> would actually perhaps make the most sense.
>=20
> Why wouldn't the first one be what I want?

As outlined earlier, you get into tons of trouble then. What about
blatantly broadcasting out the pppoe0 interface? Or what about the
situation where you have a number of NICs connected to the same network
interface for some reason? You might get confused.

Also, I would hardly see any use of broadcasting out all interfaces.
Most of the time, broadcast to 255.255.255.255 is used for some
configuration purposes, and thus directed out a specific interface
(using the bpf interface). For most other stuff that communicates to
many hosts on many sides, you would rather use some type of broadcast.

Also, we should remember what the rest of the world does in these
situation.

I think not even Windows screams out on all interfaces...

aw
--=20
Andr=E9 Wienck <awienck@solnet.ch>

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