Date: Wed, 10 Mar 2004 06:41:19 -0800 (PST) From: Daniel Austin <daniel@kewlio.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/64053: Broadcast storming after upgrading to patch SA04:04 Message-ID: <200403101441.i2AEfJQY062303@www.freebsd.org> Resent-Message-ID: <200403101450.i2AEoDGS091214@freefall.freebsd.org>
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>Number: 64053 >Category: kern >Synopsis: Broadcast storming after upgrading to patch SA04:04 >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Mar 10 06:50:13 PST 2004 >Closed-Date: >Last-Modified: >Originator: Daniel Austin >Release: 5.2.1-RELEASE-p1 >Organization: Kewlio.net Limited >Environment: FreeBSD border3.ldn.kewlio.net 5.2.1-RELEASE-p1 FreeBSD 5.2.1-RELEASE-p1 #1: Fri Mar 5 22:32:45 GMT 2004 dan@border3.ldn.kewlio.net:/usr/obj/usr/src/sys/kewlio i386 >Description: Since upgrading to 5.2.1-RELEASE-p1, our freebsd router has been broadcast storming our LAN. >How-To-Repeat: If i send packets (tcp/udp/icmp) to the network or broadcast addresses of an interface on the router from a non-attached network (e.g. over the internet), the freebsd router duplicates these packets (1 packet becomes a few thousand packets). The TTL appears to change through the packets. e.g. telnet from home to .0 or .255 of a /24 configured on a remote server. >Fix: As a temporary fix, i have firewalled the broadcast and network addresses on the freebsd router. >Release-Note: >Audit-Trail: >Unformatted:
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