Level 3 BGP Advertisements

Mikael Abrahamsson swmike at swm.pp.se
Thu Aug 30 20:04:33 UTC 2012

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 at swm.pp.se

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