nanog mailing list archives

Re: New IPv4 Allocation to ARIN


From: Petri Helenius <pete () he iki fi>
Date: Sun, 18 Jan 2004 15:03:22 +0200


jlewis () lewis org wrote:

It's those dang Nachi-sized ICMP echo/echo-replies. We block those at all our transit points and dial-up ports. Nachi was killing our cisco access-servers until we did this to stop the spread.

Unfortunately, this breaks Windows tracert as it uses 92-byte echo requests. Use a "real" traceroute, and you won't see this problem.

I know what they are and how to get around them. I just look down on people
dropping my packets in their backbones without reason.

Pete



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