nanog mailing list archives

Re: ICMP Blocking Woes

From: Sean Donelan <sean () donelan com>
Date: Thu, 2 Oct 2003 02:16:36 -0400 (EDT)



Various ISPs have been trying lots of different ICMP filters.  You can
see some of the impact on the Internet average graphs from XAffire.

http://www.xaffire.com/press/ea/EA20030902_images?rf=EM005

Xaffire/Matrix Systems apparently used ping packets that were the
same size as those being filtered by some ISPs.  According to Xaffire
service providers implementing filters included Cable & Wireless and
Level 3.

Current thread:

Re: ICMP Blocking Woes Kevin Oberman (Oct 01)
- <Possible follow-ups>
- Re: ICMP Blocking Woes Sean Donelan (Oct 01)
  - Re: ICMP Blocking Woes Stephen J. Wilcox (Oct 02)
    - PING monitoring (was Re: ICMP Blocking Woes) Sean Donelan (Oct 03)