Date: Sat, 20 Jan 2001 19:07:25 -0600 (CST) From: Mike Silbersack <silby@silby.com> To: Vince Vielhaber <vev@michvhf.com> Cc: <freebsd-net@freebsd.org> Subject: Re: icmp-response bandwidth limit? Message-ID: <Pine.BSF.4.31.0101201905300.16435-100000@achilles.silby.com> In-Reply-To: <Pine.BSF.4.30.0101201959040.37636-100000@paprika.michvhf.com>
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On Sat, 20 Jan 2001, Vince Vielhaber wrote: > Today I'm suddenly getting these messages: > > Jan 20 18:44:48 chives /kernel: icmp-response bandwidth limit 230/200 pps > > Is someone trying to pingflood me or something? > > Vince. They're either doing something that causes RSTs or icmp unreachables to be emitted, not ping flooding you. In all likelihood, it's just a portscan, and nothing to be worried about. Generally, attack tools will exceed the limit by a great deal, portscanning tools will adapt and stay close to the limited rate. There should be no need to worry, though your curiosity may drive you to use a packet sniffer next time it happens. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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