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Date: Sun, 17 Aug 2008 10:08:19 -0600 (MDT)
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To: eakarsu_33@yahoo.com
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: freebsd-current@FreeBSD.org, cpghost@cordula.ws
Subject: Re: Limiting icmp unreach response fron 348 to 200 packets/sec
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In message: <136625.5517.qm@web45211.mail.sp1.yahoo.com>
            Erol Akarsu <eakarsu_33@yahoo.com> writes:
: Hi,
: 
: Thanks for helping this.
: 
: Now, I am getting "Limiting icmp unreach response fron 348 to 200 packets/sec"
: 
: In which conditions can we get this? does this effect functionality of the system?
: How can I solve this issue?

sysctl inet.inet.icmp.icmplim=500

for example.  Not sure why you are getting so many unreachables though...

Warner