North American Network Operators Group
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Re: Pitfalls of annoucing /24s

  • From: Phil Rosenthal
  • Date: Wed Oct 15 17:56:06 2003 
On Oct 15, 2003, at 5:24 PM, H. Michael Smith, Jr. wrote:


What about the /24's that many ISPs (especially tier 2-3) are assigning
to multi-homed customers?  What about an IX or "critical infrastructure
providers" that may be issued a /24 from ARIN (Policy 2001-3)?
As long as it's provider assigned, and your provider announces the supernet that the /24 is from, it will still work. If you announce PI space out of the old class A space in /24's, many networks wont be able to reach you.