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North American Network Operators Group

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Re: DSL Network Design Question

  • From: Jon Lewis
  • Date: Sun Aug 14 11:15:23 2005

On Sun, 14 Aug 2005, Robert E.Seastrom wrote:

Peter Dambier is right that his ISP is avoiding .255 and .0.  Older MS
stacks (still plenty prevalent in the wild) get indigestion when
handed those final octets, notwithstanding the fact that they aren't
broadcast addresses on any network larger than a /24 or for one-ended
use like PPP...  if you don't exclude them you'll end up putting
additional load on your help desk.
Believe it or not, even not too old (12.1T) IOS versions have issues forwarding packets to .255 addresses.

----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________




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