Hi,
I'm a bit confused on setting appropriate netmask on carp interface when
the carpdev has an IP address.
Till yesterday (following http://openbsd.org/faq/pf/carp.html#failover)
my carp interfaces had the same netmask as the carpdev interfaces:
em1:
(no inet adddress)
vlanXX:
vlan: 102 priority: 0 parent interface: em1
inet xxx.xxx.xxx.18 netmask 0xfffffff8 broadcast xxx.xxx.xxx.23
carp0:
carp: MASTER carpdev vlanXX
inet xxx.xxx.xxx.20 netmask 0xfffffff8 broadcast xxx.xxx.xxx.23
I've read this from Henning
http://marc.info/?l=openbsd-misc&m=123464537104366&w=2
so I tried to switch to /32 netmask on the carp interfaces
# ifconfig carp0 xxx.xxx.xxx.20/32
But now I get
Nov 21 11:45:09 fw /bsd: carp0: state transition: BACKUP -> MASTER
Nov 21 11:45:09 fw /bsd: arp_rtrequest: bad gateway value
Nov 21 11:45:10 fw /bsd: carp1: state transition: BACKUP -> MASTER
Nov 21 11:45:10 fw /bsd: arp_rtrequest: bad gateway value
every time the state changes on each firewall. Apart from this I don't
see any other problem.
Is this normal behavior? Should I change back to the /29 netmask?
regards,
Giannis
