Date: Wed, 2 Jan 2008 10:57:26 GMT From: Jaakko Heinonen <jh@saunalahti.fi> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/119255: [patch] dhclient removes aliases on PREINIT Message-ID: <200801021057.m02AvQ2j037571@www.freebsd.org> Resent-Message-ID: <200801021100.m02B02Uo059939@freefall.freebsd.org>
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>Number: 119255 >Category: bin >Synopsis: [patch] dhclient removes aliases on PREINIT >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jan 02 11:00:01 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Jaakko Heinonen >Release: 7.0-RC1 >Organization: >Environment: FreeBSD x 7.0-RC1 FreeBSD 7.0-RC1 #0: Mon Dec 24 12:18:24 UTC 2007 root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 >Description: dhclient-script removes aliases from the network interface when it does the PREINIT operation. For example if dhclient does EXPIRE -> PREINIT -> ARPSEND -> ARPCHECK -> BOUND cycle the aliases are lost. The bug is also described in this message: http://lists.freebsd.org/pipermail/freebsd-isp/2007-August/004769.html . >How-To-Repeat: 1) Configure at least one alias for a DHCP enabled interface /etc/rc.conf: ifconfig_rl0="DHCP" ifconfig_rl0_alias0="inet 10.0.0.103 netmask 255.255.255.0" 2) Wait dhclient to do EXPIRE -> PREINIT -> ARPSEND -> ARPCHECK -> BOUND cycle 3) Aliases are lost from the interface (10.0.0.103 in this example). >Fix: Patch attached with submission follows: --- /sbin/dhclient-script.orig 2007-12-27 22:17:06.000000000 +0200 +++ /sbin/dhclient-script 2007-12-28 01:27:28.000000000 +0200 @@ -284,7 +284,7 @@ PREINIT) delete_old_alias - $IFCONFIG $interface inet 0.0.0.0 netmask 0.0.0.0 broadcast 255.255.255.255 up + $IFCONFIG $interface inet alias 0.0.0.0 netmask 0.0.0.0 broadcast 255.255.255.255 up ;; ARPCHECK|ARPSEND) >Release-Note: >Audit-Trail: >Unformatted:
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