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Date: Wed, 14 Dec 2011 09:01:23 +0100
From: Johan Hendriks <joh.hendriks@gmail.com>
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Cc: Victor Sudakov <vas@mpeks.tomsk.su>
Subject: Re: carp(4) on FreeBSD 8.2
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Victor Sudakov schreef:
> Colleagues,
>
> Are there any success stories or known issues with carp(4) on FreeBSD
> 8.2? I have configured a carp interface:
>
> router1# ifconfig le0
> le0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>  metric 0 mtu 1500
>          options=8<VLAN_MTU>
>          ether 08:00:27:aa:6a:bd
>          inet 10.14.135.88 netmask 0xfffffe00 broadcast 10.14.135.255
>          media: Ethernet autoselect
>          status: active
> router1#
> router1# ifconfig carp0
> carp0: flags=49<UP,LOOPBACK,RUNNING>  metric 0 mtu 1500
>          inet 10.14.134.99 netmask 0xfffffe00
>          carp: MASTER vhid 1 advbase 1 advskew 0
> router1#
>
> But for some reason I can ping 10.14.135.88, but cannot ping
> 10.14.134.99. There seem to be ARP responses however:
>
> $ arp -an | grep 10.14.134.99
> ? (10.14.134.99) at 00:00:5e:00:01:01 on re0 [ethernet]
>
> This looks like a VRRP MAC address for sure. And this MAC address is
> present in the switch forwarding table:
> Core5>sh mac-address-table  | i 0000.5e00.0101
>     1    0000.5e00.0101    DYNAMIC     Fa0/18
>
> What is even more strange, tcpdump on le0 does not even see ICMP echo
> requests addressed to 10.14.134.99.
>
> What am I doing wrong?
Can you show your relevant rc.conf settings.
For both master and slave machine, also the relevant sysctl.conf 
settings could help.

regards
Johan Hendriks