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Rif: Please filter TCP to 224/4 [was MSDP SA explosion - sasser worm?]


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  • Subject: Rif: Please filter TCP to 224/4 [was MSDP SA explosion - sasser worm?]
  • Date: Tue, 4 May 2004 15:36:49 +0200





I suggest to block also icmp packets towards 224/4. Ping with destination
within multicast range is overloading IGMP snooping processes on our
switches, even on Catalyst 6500s.

Bye

Marco Restani
NOC Top-IX






"Charles R. Anderson"


<>
Per:


Inviato da: Cc:


owner-wg-multicast@in
Oggetto: Please filter TCP to 224/4 [was MSDP SA explosion - sasser
worm?]
ternet2.edu





03/05/2004 23.59









Folks, please filter TCP packets destined to 224/4. TCP can't do
multicast, and that should help reduce the MSDP load caused by Sasser.

Thanks.








  • Rif: Please filter TCP to 224/4 [was MSDP SA explosion - sasser worm?], Marco . Restani, 05/04/2004

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