North American Network Operators Group
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Re: ISPs Blocking Private Addresses?

  • From: Bradley Reynolds
  • Date: Sun Feb 08 19:24:38 1998 
> Do most ISPs explicitly block private IP addresses (e.g. 10.X.X.X) at their
> borders?
> 
> Do the "default-less" ISPs filter private addresses or do they let
> routing/forwarding do the work?
> 
> thanks, peter
> 
route-views.oregon-ix.net>sh ip bgp 10.0.0.0
% Network not in table
route-views.oregon-ix.net>
                               
Looks like it.

Filter everyone... trust no one.

(aphorism of the day)

brad reynolds
[email protected]