Dunno if this is possible...
I'm trying to set up an OpenBSD (4.2 snapshot) router as a VRRP
neighbor to a Juniper M7i (JunOS version 7.5R2). I've set up the
following:
On the M7i Gigabit interface:
unit 0 {
description "Gigabit Ethernet Backbone";
family inet {
mtu 9000;
no-redirects;
address X.X.X.49/28 {
vrrp-group 55 {
virtual-address X.X.X.55;
priority 10;
accept-data;
}
}
}
}
> show vrrp detail
Physical interface: ge-0/0/0, Unit: 0, Address: X.X.X.49/28
Index: 72, SNMP ifIndex: 72, VRRP-Traps: enabled
Interface state: up, Group: 55, State: master
Priority: 10, Advertisement interval: 1, Authentication type: none
Preempt: yes, Accept-data mode: yes, VIP count: 1, VIP: X.X.X.55
Advertisement timer: 0.631s, Master router: X.X.X.49
Virtual router uptime: 00:46:48, Master router uptime: 00:46:39
Virtual MAC: 00:00:5e:00:01:37
Tracking: disabled
On the OpenBSD machine (4.2 GENERIC.MP#259):
msk0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 9000
lladdr 00:00:5a:72:6f:9f
description: Gigabit Ethernet Backbone #1
media: Ethernet autoselect (1000baseT full-duplex)
status: active
inet X.X.X.50 netmask 0xfffffff0 broadcast X.X.X.63
inet6 fe80::200:5aff:fe72:6f9f%msk0 prefixlen 64 scopeid 0x4
carp1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:5e:00:01:37
carp: MASTER carpdev msk0 vhid 55 advbase 1 advskew 150
groups: carp
inet6 fe80::200:5eff:fe00:137%carp1 prefixlen 64 scopeid 0xe
inet X.X.X.55 netmask 0xfffffff0 broadcast X.X.X.63
CARP preempt is set on the BSD box.
They both show up as CARP/VRRP masters no matter how much I play with
the VRRP priority or the CARP advskew, and cause duplicate IP probs
(same IP, same virtual MAC).
I turned on logging for CARP, and am getting this:
carp: packet too short 40 on carp1
carp: packet too short 40 on carp1
carp: packet too short 40 on carp1
<etc, etc>
Doing a sniff, it looks like the VRRP packet from the Juniper is 10
bytes smaller than the CARP packet on the BSD machine (60 bytes vs
70). Does anyone know if there's a tweakable option to fix this, or
if it's even possible to do this at all (is CARP compatible with
regular VRRP)?
