nanog mailing list archives

Re: Smurf Amp Nets


From: Jon Lewis <jlewis () inorganic5 fdt net>
Date: Thu, 18 Jun 1998 01:13:11 -0400 (EDT)

On Thu, 18 Jun 1998, Richard Thomas wrote:

Might want to add a delay considering the amount of bandwidth they will be receiving if they tried to send out all 
those probes at once. In a previous message it was stated that a probe uses 4x64bytes, plus amplification by the 
broadcasts. I just took the SAR offline for about 4 minutes while trying running a SMALL portion of my bcasts through 
your script on my 28.8k modem, and it didn't even come close to completing that portion. That fact aside you won't 
get very accurate results if the SAR is so flooded it can't receive the replies. I would suggest they use ping 
-s 1 or -s 8 if the timing information is desired.

I've inserted a sleep(5); just after the system() line.  That should help
a bit...and it doesn't really matter how long registration takes if it's
automated and logging output to a file for later examination.

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