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North American Network Operators Group

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Re: Martian list of IP's to block???

  • From: Andy McConnell
  • Date: Fri Oct 01 13:08:23 1999

On Fri, 1 Oct 1999 bmanning@vacation.karoshi.com wrote:

}>     deny   ip 224.0.0.0 31.255.255.255 any log

...

}	I'm not convinced that blocking native multicast is a good idea.


I think it makes sense if you're using this list to block source
addresses, or if you are applying this list to unicast routes only.  We
also block 224.0.0.0/4, but not on MBGP-learned routes. 

-andy

--
Andy McConnell	IP Operations Manager 			andym@ntt.net
NTT America 	Network and IP Service Division		+1 408 873 3757
真向練 安堵龍 	NTTアメリカIPオペレーション担当課長	

Always try to do things in chronological order; it's less
confusing that way.



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