Hi, I'm trying CARP ip balancing on openbsd 4.2 (-current). I have 3 boxes (host A, host B and host C) so I started configuring carp interfaces according manual:
A# ifconfig carp0 10.10.10.100 netmask 255.255.248.0 vhid 7 link0 link1 A# ifconfig carp1 10.10.10.100 netmask 255.255.248.0 vhid 8 advskew 100 B# ifconfig carp0 10.10.10.100 netmask 255.255.248.0 vhid 7 advskew 100 link0 link1 B# ifconfig carp1 10.10.10.100 netmask 255.255.248.0 vhid At this point everything works but there is no IP load balancing, because on host B both interfaces are in backup mode. So I've enabled carp preempt on both hosts: A# sysctl net.inet.carp.preempt=1 B# sysctl net.inet.carp.preempt=1 Now carp1 is master on host B, and it's doing load balancing, so i decided to add host C (maybe we need to add this to example section in the manual, like it's done for arp load balancing? Or is it just coincidence and you don't really need carp preemtp?): C# ifconfig carp0 10.10.10.100 netmask 255.255.248.0 vhid 7 advskew 200 link0 link1 As soon as I wrote this command I lost connection to host C (did that remotely), so I guess tomorrow I'll have to check what happened, but maybe someone knows what did I do wrong (maybe advskew should equal for all backup hosts in the pool? but I assumed that you have to manage priorities that's why I've set it to 200, or maybe the fact that I've set carp.preempt is messing around something?) Dane
