I asked about this awhile back but didn't get an answer: Is carppeer supported with IPv6?
The ifconfig(8) manpage talks about using carppeer as an alternative to IPv4 multicast traffic but doesn't say anything about v6. With the same syntax for v4 and v6 in a hostname.carpX file (see below), running 'sh /etc/netstart carpX' on that interface returns this error: ifconfig: error in parsing address string: no address associated with name The error goes away if the IPv6 line is commented out, or if it's left in but without the carppeer part. I'm looking to use unicast rather than multicast for carp for both v4 and v6 interfaces. Is this supported in the release versions of 5.1 or 5.2? Thanks dn On 11/1/12 4:39 PM, David Newman wrote: > OpenBSD 5.1 / i386, two boxes connected using CARP/pfsync. There are > VLANs on the physical interfaces, and CARP interfaces on the VLAN > interfaces. Both boxes run dual stack on VLAN and CARP interfaces. This > all works fine. > > To get rid of multicast CARP traffic, I tried using the carppeer keyword > in hostname.carpXX files, like this: > > inet 172.31.16.1 255.255.255.0 172.31.16.255 vhid 16 \ > advskew 1 pass WouldntYouLikeToKnow carpdev vlan16 \ > carppeer 172.31.16.3 > inet6 2604:0:c2:10::1 64 vhid 16 advskew 1 pass \ > WouldntYouLikeToKnow carpdev vlan16 carppeer 2604:0:c2:10::3 > > Problem is, after running 'sh /etc/netstart vlan16' and 'sh > /etc/netstart/carp16' I still see multicast CARP packets, but now only > from the link-local address. > > Questions: > > 1. Why would the command 'sh /etc/netstart carp16' return the error > 'ifconfig: error in parsing address string: no address associated with > name'? I can ping6 the carppeer 2604:0:c2:10::3 from this box. > > 2. Are multicast CARP frames from the link-local address expected behavior? > > 3. If so, is there any way to disable that behavior? > > Thanks! > > dn
