nanog mailing list archives

Re: Arbor Networks DoS defense product


From: Dan Hollis <goemon () anime net>
Date: Fri, 17 May 2002 00:50:40 -0700 (PDT)


On Thu, 16 May 2002, Dragos Ruiu wrote:
But that said.  Blackholing as a response for portscanning
is stupid.
If you are a small communications end-point it's dumb.
Just run portsentry for a while with auto-firewall rules
if you need convincing.
If you are a communications service provider providing
packet transit for others (even employees), it's hostile.

What if you are portscanned repeatedly by a network and that network 
refuses to shut down their scanners even after being asked many times
(eg, rogue chinese and korean networks)

I think that you should leave network policy up to the service provider to 
decide.

-Dan
-- 
[-] Omae no subete no kichi wa ore no mono da. [-]


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