VRRP
Router Configuration Guide 423
For IPv4, up to four vrrp vrid nodes can be configured on a router interface. Each virtual router
instance can manage up to 16 backup IP addresses. For IPv6, only one virtual router ID can be
configured on a router interface.
The no form of the command removes the specified vrid from the IP interface. This terminates VRRP
participation and deletes all references to the vrid in conjunction with the IP interface. The vrid does
not need to be shutdown to remove the virtual router instance.
Default no vrrp — No VRRP virtual router instance is associated with the IP interface.
Special Cases Virtual Router Instance Owner IP Address Conditions — It is possible for the virtual router
instance owner to be created prior to assigning the parent IP interface primary or secondary
IP addresses. When this is the case, the virtual router instance is not associated with an IP
address. The operational state of the virtual router instance is down.
VRRP Owner Command Exclusions — By specifying the VRRP vrid as owner, The following
commands are no longer available:
• vrrp priority — The virtual router instance owner is hard-coded with a priority
value of 255 and cannot be changed.
• vrrp master-int-inherit — Owner virtual router instances do not accept VRRP
advertisement messages; the advertisement interval field is not evaluated and cannot
be inherited.
• ping-reply, telnet-reply and ssh-reply — The owner virtual router instance always
allows Ping, Telnet and SSH if the management and security parameters are
configured to accept them on the parent IP interface.
• vrrp shutdown — The owner virtual router instance cannot be shutdown in the
vrrp node. If this was allowed, VRRP messages would not be sent, but the parent IP
interface address would continue to respond to ARPs and forward IP packets.
Another virtual router instance may detect the missing master due to the termination
of VRRP advertisement messages and become master. This would cause two routers
responding to ARP requests for the same IP addresses. To shutdown the owner
virtual router instance, use the shutdown command in the parent IP interface
context. This will prevent VRRP participation, IP ARP reply and IP forwarding. To
continue parent IP interface ARP reply and forwarding without VRRP participation,
remove the vrrp vrid instance.
• traceroute-reply
Parameters vrid — The virtual router ID for the IP interface expressed as a decimal integer.
Values 1 to 255
owner — Identifies this virtual router instance as owning the virtual router IP addresses. If the
owner keyword is not specified at the time of vrid creation, the vrrp backup commands must
be specified to define the virtual router IP addresses. The owner keyword is not required
when entering the vrid for editing purposes. Once created as owner, a vrid on an IP interface
cannot have the owner parameter removed. The vrid must be deleted and than recreated
without the owner keyword to remove ownership.
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