[12135] in North American Network Operators' Group
Re: smurf's attack...
daemon@ATHENA.MIT.EDU (Jay R. Ashworth)
Fri Sep 5 16:33:52 1997
Date: Fri, 5 Sep 1997 16:11:48 -0400
From: "Jay R. Ashworth" <jra@scfn.thpl.lib.fl.us>
To: Randy Bush <randy@psg.com>
Cc: "Jordyn A. Buchanan" <jordyn@bestweb.net>, nanog@merit.edu
In-Reply-To: <m0x74TC-0007zWC@rip.psg.com>; from Randy Bush <randy@psg.com> on Fri, Sep 05, 1997 at 12:55:00PM -0800
On Fri, Sep 05, 1997 at 12:55:00PM -0800, Randy Bush wrote:
> > access-list XXX deny ip any 0.0.0.255 255.255.255.0
>
> You must be kidding. Why not
>
> access-list XXX deny ip any 0.0.0.42 255.255.255.0
In your usual, inimitable, "everyone ought to understand my comment"
style, Randy.
Because ".255" is very often (I'm tempted to say "almost always" a
broadcast address, and ".42" never is. (I haven't run the numbers, but
I'm fairly certain that .42 is not the broadcast address of any size
network.)
Cheers,
-- jra
--
Jay R. Ashworth jra@baylink.com
Member of the Technical Staff Unsolicited Commercial Emailers Sued
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