[71954] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: The use of .0/.255 addresses.

daemon@ATHENA.MIT.EDU (Tony Li)
Sat Jun 26 19:59:40 2004

In-Reply-To: <20040626233240.GP27974@earth.li>
Cc: nanog@nanog.org
From: Tony Li <tony.li@tony.li>
Date: Sat, 26 Jun 2004 17:01:14 -0700
To: Jonathan McDowell <noodles@earth.li>
Errors-To: owner-nanog-outgoing@merit.edu




> Various people I've asked about this have said they wouldn't use the .0
> or .255 addresses themselves, though couldn't present any concrete info
> about why not; my experience above would seem to suggest a reason not 
> to
> use them.
>


The .255 address is very likely to be a broadcast address from a
netblock of /24 or longer.  I would suspect that folks are wary of 
accepting
packets from a broadcast address as that could easily be a smurf.
The .0 address was used as a broadcast address long ago and then
was deprecated, so the same rationale probably applies.

Tony


home help back first fref pref prev next nref lref last post