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Re: SMURF amplifier block list
From: Stephen Sprunk <sprunk () paranet com>
Date: Tue, 14 Apr 1998 15:29:51 -0500

Just because the host addresses are theoretically valid doesn't mean
that using them is a good idea.  Those two addresses constitute less
than 1% of a network's addresses, and are very simple to configure out
of your DHCP servers, etc.

Again, the likelihood that these addresses will cause problems or
experience connectivity issues is a far greater concern than the gain of
less than 1% of usable address space.

Sorry Charley  :)


Charley Kline wrote:

But subnets of class B's may be larger than /24 and have host numbers of
.255 and .0 in them. That's true all over this campus.

It may be reasonable to filter x.x.x.255 addresses from class C's or
/24 blocks, but you cannot filter all addresses that end in .255 without
filtering out a number of completely legitimate hosts.

Stephen Sprunk      "Oops."                 Email: sprunk () paranet com
Sprint Paranet        -Albert Einstein      ICBM:  33.00151N 96.82326W

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