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Re: automatically configuring carp(4)
Thanks for your reply Manuel.
>> But if you're running carp on vlan (like a do) you can't use auto_ifconfig
because it's going to do it in the wrong order. The solution is to set
auto_ifconfig=NO and list all interfaces in net_interfaces
Could you expand on that a bit please? Would the kernel (?) try to
configure carp before the physical interface?
Not the kernel, the /etc/rc.d/network script.
Ah, yes. So why is that--what determines the order in which
/etc/rc.d/network configures interfaces?
> Do you mean you have separate 802.1Q VLANs defined on your
> NIC and one (or more) of the NIC's IPs are in a carp(4) group?
Yes (so it's not the NIC's IPs but the IPs on the different vlan
> If so, could you post the
contents of the /etc/ifconfig.* files you're using for reference?
Quite easy, something like:
vlan 574 vlanif wm0
inet 10.0.0.1 netmask 255.255.255.0
vhid 1 advskew 100 pass password 184.108.40.206 255.255.255.0
(220.127.116.11 being the public IP shared by the 2 boxes, and 10.0.0.1
the IP used for internal communication with the second member of the
That's tricky, I hadn't thought of creating a private channel for the
members of the CARP group to use to communicate between themselves.
That's so they can keep the state of whatever services they provide
in synch, no doubt. Did you choose that approach instead of letting
them synch over the same subnet that the CARP group uses for security
reasons? I don't suppose you'd get higher data throughput by
creating separate VLANs would you?
By the way, I noticed the MAC address of the only CARP virtual
interface I've set up so far is 00:00:5e:00:01:01, which according to
belongs to USC INFORMATION SCIENCES INST. Do all the CARP MACs
NetBSD generates belong to that vendor?
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