Date: Mon, 15 Feb 2010 22:29:51 GMT From: rick norman <gumbo@bsdmail.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/143973: ipfw forward option causes kernel reboot Message-ID: <201002152229.o1FMTpS4068953@www.freebsd.org> Resent-Message-ID: <201002152230.o1FMU22i067794@freefall.freebsd.org>
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>Number: 143973 >Category: kern >Synopsis: ipfw forward option causes kernel reboot >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Feb 15 22:30:01 UTC 2010 >Closed-Date: >Last-Modified: >Originator: rick norman >Release: 8.0 release >Organization: >Environment: FreeBSD 8.0-RELEASE #0 Mon Jan 11 2010 >Description: establishing tcp stream causes system to reboot when ipfw fwd rule is used to select the output interface. >How-To-Repeat: configure two nodes on one lan as follows : node01 ifconfig em1 alias 10.77.1.2/24 ifconfig em1 alias 10.77.2.2/24 ipfw add 101 fwd 10.77.1.1 ip from 10.77.1.2 to any out ipfw add 102 fwd 10.77.2.1 ip from 10.77.2.2 to any out node02 ifconfig em1 alias 10.77.1.1/24 ifconfig em1 alias 10.77.2.1/24 In one window on node01 run "nc -l 8889 > /dev/null". In a second window on node01 run "yes | nc -s 10.77.1.2 10.77.2.2 8889". The system freezes then reboots. Remember to enable IPFIRWALL_FORWARD in the kernel. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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