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Re: Level 3 BGP Advertisements
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Thu, 30 Aug 2012 22:04:33 +0200 (CEST)

On Thu, 30 Aug 2012, Blake Hudson wrote:

these OS's simply enforce classful boundaries regardless of the subnet mask you have set. As the KB states, this "bug" affects supernets only. I'm not trying to defend MS (they can do that themselves), but your statement was misleading.

Just for kicks, I tried using a .0.0/16 and .255.255/16 adress for stuff in IOS (configured it as loopback and tried to establish bgp sessions etc), that didn't work so well. I don't remember exactly what the problem was, but I did indeed run into problems.

Mikael Abrahamsson    email: swmike () swm pp se

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