| PF, The OpenBSD Packet Filter: Building The Network You Need: BSDCan, Ottawa, June 10th 2015 | ||
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on the master
$ sudo ifconfig carp0 192.0.2.19 carpdev sis0 vhid 1 $ sudo ifconfig carp1 192.168.1.1 carpdev sis1 vhid 2
on the backup
$ sudo ifconfig carp0 192.0.2.19 carpdev sis0 vhid 1 advskew 100 $ sudo ifconfig carp1 192.168.1.1 carpdev sis1 vhid 2 advskew 100
NOTE: On OpenBSD 5.7 onwards, explicit carpdev is required
the master announces every (1 + 0/256) seconds
the backup announces every (1 + 100/256) seconds
Note Multicast. Use carppeer option for unicast
Also see Henning Brauer's notes