Default ICMP rate limiting changes from 5.4 to 6.x?

[Vinny Abello]

Hello all,

	I'm trying to figure out why my smokeping installation using fping 
probes now seems to get periodic loss. It's very minor and only 
affects the fping probe type. Without centering too much on smokeping 
details, was there any sort of default rate limiting changed in the 
ICMP settings going from FreeBSD 5.4 to 6.0? The problem happens 
across every monitor and started exactly after the upgrade. I tried 
removing and reinstalling the fping port as well as all of smokeping 
via the port as well but it had no effect. Does anyone have any other 
ideas as to what might cause this to happen? I asked on the smokeping 
list but nobody had any input.

The system in question is running:

FreeBSD engbox.tellurian.net 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE 
#3: Wed Mar  8 16:37:25 EST 2006

I can post dmesg output too, but I don't think that is necessarily 
relevant as everything else is working perfectly fine and I have no 
stability or performance problems.

Thanks in advance for any helpful ideas or hints!

Vinny Abello
Network Engineer
Server Management
vinny at tellurian.com
(973)300-9211 x 125
(973)940-6125 (Direct)
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