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Date: Tue, 14 Jun 2005 19:34:05 +0100
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From: Paul Civati <paul@xciv.org>
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Subject: CARP and VLAN interfaces (5.4)
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Has anyone tested this?

It doesn't seem to work for me (although from some brief googling I 
got the impression it should).

In my testing the carp0 for em3 interface negotiates MASTER/BACKUP 
as it should, however the carp1 interface never leaves the 'INIT' 
state.  From another host in the 111 .1q VLAN/subnet I can ping .67
and .66 (the other CARP partner).

em3: flags=18943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,POLLING> mtu 1500
        options=4b<RXCSUM,TXCSUM,VLAN_MTU,POLLING>
        inet X.X.X.3 netmask 0xffffffc0 broadcast X.X.X.63
        inet6 fe80::230:48ff:fe83:4807%em3 prefixlen 64 scopeid 0x4 
        ether 00:30:48:83:48:07
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet 127.0.0.1 netmask 0xff000000 
        inet6 ::1 prefixlen 128 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 
carp0: flags=41<UP,RUNNING> mtu 1500
        inet X.X.X.1 netmask 0xffffffc0 
        carp: BACKUP vhid 1 advbase 1 advskew 100
vlan111: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        inet Y.Y.Y.67 netmask 0xffffffe0 broadcast Y.Y.Y.95
        inet6 fe80::230:48ff:fe83:4806%vlan111 prefixlen 64 scopeid 0x7 
        ether 00:30:48:83:48:07
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
        vlan: 111 parent interface: em3
carp1: flags=0<> mtu 1500
        inet Y.Y.Y.65 netmask 0xffffffe0 
        carp: INIT vhid 2 advbase 1 advskew 100

-Paul-