To reproduce it set IPv6 address and vrrp configuration in one commit
set interfaces ethernet eth1 address '2001:db8::3/125' set interfaces ethernet eth1 address '192.0.2.3/24' set high-availability vrrp group 10 address 2001:db8::2/125 set high-availability vrrp group 10 description '**IPv6**' set high-availability vrrp group 10 hello-source-address '2001:db8::3' set high-availability vrrp group 10 interface 'eth1' set high-availability vrrp group 10 peer-address '2001:db8::4' set high-availability vrrp group 10 preempt-delay '5' set high-availability vrrp group 10 priority '200' set high-availability vrrp group 10 rfc3768-compatibility set high-availability vrrp group 10 vrid '10' set high-availability vrrp group 11 address 192.0.2.2/24 set high-availability vrrp group 11 description '**IPv4**' set high-availability vrrp group 11 hello-source-address '192.0.2.3' set high-availability vrrp group 11 interface 'eth1' set high-availability vrrp group 11 peer-address '192.0.2.4' set high-availability vrrp group 11 preempt-delay '5' set high-availability vrrp group 11 priority '200' set high-availability vrrp group 11 rfc3768-compatibility set high-availability vrrp group 11 vrid '11'
One group in unexpected FAULT state, fixed only after restart VRRP
vyos@r14# run show vrrp Name Interface VRID State Priority Last Transition ------ ----------- ------ ------- ---------- ----------------- 10 eth1v10v6 10 FAULT 200 48s 11 eth1v11v4 11 MASTER 200 45s [edit] vyos@r14# vyos@r14# run restart vrrp [edit] vyos@r14# [edit] vyos@r14# [edit] vyos@r14# run show vrrp Name Interface VRID State Priority Last Transition ------ ----------- ------ ------- ---------- ----------------- 10 eth1v10v6 10 MASTER 200 4s 11 eth1v11v4 11 MASTER 200 4s [edit] vyos@r14#
The log
bind unicast_src 2001:db8::3 failed 99 - Cannot assign requested address
Aug 31 13:49:22 r14 Keepalived[4766]: Startup complete Aug 31 13:49:22 r14 Keepalived_vrrp[4771]: bind unicast_src 2001:db8::3 failed 99 - Cannot assign requested address Aug 31 13:49:22 r14 Keepalived_vrrp[4771]: (10): entering FAULT state (src address not configured) Aug 31 13:49:22 r14 Keepalived_vrrp[4771]: (10) Entering FAULT STATE Aug 31 13:49:22 r14 Keepalived_vrrp[4771]: (11) Entering BACKUP STATE (init) Aug 31 13:49:22 r14 keepalived-fifo.py[4781]: Starting FIFO pipe for Keepalived Aug 31 13:49:22 r14 keepalived-fifo.py[4781]: Attempt to load keepalived configuration aborted due to a commit in progress (attempt 1/20) Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Loaded configuration: {'group': {'10': {'address': {'2001:db8::2/125': {}}, 'description': '**IPv6**', 'hello_source_address': '2001:db8::3', 'interface': 'eth1', 'peer_address': '2001:db8::4', 'preempt_delay': '5', 'priority': '200', 'rfc3768_compatibility': {}, 'vrid': '10'}, '11': {'address': {'192.0.2.2/24': {}}, 'description': '**IPv4**', 'hello_source_address': '192.0.2.3', 'interface': 'eth1', 'peer_address': '192.0.2.4', 'preempt_delay': '5', 'priority': '200', 'rfc3768_compatibility': {}, 'vrid': '11'}}} Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: PIPE already exist: /run/keepalived/keepalived_notify_fifo Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Message reading start Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Message processing start Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Received message: INSTANCE "10" FAULT 200 Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: INSTANCE 10 changed state to FAULT Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Received message: INSTANCE "10" FAULT 200 Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: INSTANCE 10 changed state to FAULT Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: Received message: INSTANCE "11" BACKUP 200 Aug 31 13:49:23 r14 keepalived-fifo.py[4781]: INSTANCE 11 changed state to BACKUP Aug 31 13:49:25 r14 Keepalived_vrrp[4771]: (11) Entering MASTER STATE