Date: Tue, 21 Nov 2000 07:49:53 +0000 From: Mark Rowlands <mark.rowlands@minmail.net> To: BSDI <bsd@davez.org>, freebsd-questions@FreeBSD.ORG Subject: Re: icmp error in dmesg Message-ID: <00112107495300.05256@marbsd.tninet.se> In-Reply-To: <Pine.BSF.4.21.0011202306030.11271-100000@zeus.davez.org> References: <Pine.BSF.4.21.0011202306030.11271-100000@zeus.davez.org>
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On Tuesday 21 November 2000 04:12, BSDI wrote: > Hi, > > I keep seeing this error when looking at my dmesg output, anyone > know why or how to correct this? Please respond to my E-Mail address as I > am not currently on the list. Thanks in advance for any help you may be > able to provide me. > Dave Lajoie > E-Mail bsd@davez.org > Thanks again ~ > > icmp-response bandwidth limit 317/200 pps > icmp-response bandwidth limit 323/200 pps repeated lots of times snip my guess something is sending you lots of icmp packets, your kernel is gracefully limiting the speed with which it attempts to respond :- from /usr/src/sys/conf/i386/LINT and the GENERIC kernel # ICMP_BANDLIM enables icmp error response bandwidth limiting. You # typically want this option as it will help protect the machine from # D.O.S. packet attacks. # options ICMP_BANDLIM install snort or checkout tcpdump or any sniffer type device and see what is on your wire. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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