Date: Mon, 5 Feb 2007 09:21:37 GMT From: Prokofiev Sergey<proks@uptel.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/108789: carp, vlan, routing : trouble or feature ? Message-ID: <200702050921.l159LbKY025173@www.freebsd.org> Resent-Message-ID: <200702050930.l159UFH6018442@freefall.freebsd.org>
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>Number: 108789 >Category: kern >Synopsis: carp, vlan, routing : trouble or feature ? >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Feb 05 09:30:14 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Prokofiev Sergey >Release: 6.2-STABLE >Organization: Telnet >Environment: FreeBSD freebsd.uptel.net 6.2-STABLE FreeBSD 6.2-STABLE #0: Wed Jan 17 15:07:27 EET 2007 proks@freebsd.uptel.net:/usr/obj/usr/src/sys/ROUTER i386 >Description: I have a problem with CARP on FreeBSD 6.2 in the following scheme: +--------------+ +-----------------------+ +-----------------+ | A | | B | | C | | vlan20 |--//-->| vlan20 vlan10 |---//---| vlan10 | +--------------+ +-----------------------+ +-----------------+ vlan20 10.10.10.2/26 vlan20 10.10.10.1/26 gateway 10.10.10.1 vlan10 10.10.9.1/26 vlan10 10.10.9.2/26 carp10 10.10.9.3/26 carp10 10.10.9.3/26 advskew 0 advskew 1 carp11 10.10.9.4/26 carp11 10.10.9.4/26 advskew 1 advskew 0 i.e. server B MASTER for 10.10.9.3/26, BACKUP for 10.10.9.4/26 server C BACKUP for 10.10.9.3/26, MASTER for 10.10.9.4/26 But if to send icmp request from server A -> to server C on ip 10.10.9.4, server B replay from BACKUP iface carp11 !?!? This is trouble or feature of realization ????? ------------------------------------------------- serverB> ifconfig carp* carp10: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 10.10.9.3 netmask 0xffffffc0 carp: MASTER vhid 100 advbase 1 advskew 0 carp11: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 10.10.9.4 netmask 0xffffffc0 carp: BACKUP vhid 101 advbase 1 advskew 1 /etc/sysctl.conf: net.inet.carp.preempt=1 serverC> ifconfig carp* carp10: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 10.10.9.3 netmask 0xffffffc0 carp: BACKUP vhid 100 advbase 1 advskew 1 carp11: flags=49<UP,LOOPBACK,RUNNING> mtu 1500 inet 10.10.9.4 netmask 0xffffffc0 carp: MASTER vhid 101 advbase 1 advskew 0 /etc/sysctl.conf: net.inet.carp.preempt=1 >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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