From owner-freebsd-questions Mon Nov 20 22:56:30 2000 Delivered-To: freebsd-questions@freebsd.org Received: from rush.telenordia.se (mail.telenordia.se [194.213.64.42]) by hub.freebsd.org (Postfix) with SMTP id 2605E37B479 for ; Mon, 20 Nov 2000 22:56:27 -0800 (PST) Received: (qmail 236 invoked from network); 21 Nov 2000 07:56:26 +0100 Received: from bb-62-5-7-17.bb.tninet.se (HELO marbsd.tninet.se) (62.5.7.17) by mail.telenordia.se with SMTP; 21 Nov 2000 07:56:26 +0100 From: Mark Rowlands Reply-To: mark.rowlands@minmail.net Date: Tue, 21 Nov 2000 07:49:53 +0000 X-Mailer: KMail [version 1.1.99] Content-Type: text/plain; charset="US-ASCII" To: BSDI , freebsd-questions@FreeBSD.ORG References: In-Reply-To: Subject: Re: icmp error in dmesg MIME-Version: 1.0 Message-Id: <00112107495300.05256@marbsd.tninet.se> Content-Transfer-Encoding: 8bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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