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ipv6-address auto-gen-link-local
Generates a virtual link-local IPv6 address and assigns it as the virtual IPv6 address for a VRRPv3
instance. The no form of this command deletes the auto-generated virtual link-local IPv6 address for
the VRRP v3 instance.
Syntax
ipv6-address auto-gen-link-local
no ipv6-address auto-gen-link-local
Command Default
None
Modes
VRRP sub-configuration mode
Usage Guidelines
The default VRRPv3 implementation allows only the link-local address that is configured on a physical
interface to be used as the virtual IPv6 address of a VRRPv3 instance. This limits configuring a link-
local address for each VRRP instance on the same physical interface because there can be only one
link-local address per physical interface. You can use this command on the owner or backup router to
generate a virtual link-local IPv6 address from the virtual MAC address of a VRRPv3 instance and
assign it as the virtual IPv6 address for the VRRPv3 instance. This auto-generated link-local IPv6
address is not linked to any physical interface on the router.
Examples
The following example shows the auto-generation of a virtual link-local IPv6 address and its allocation
as the virtual IPv6 address of a VRRPv3 cluster on an owner router.
device(config)# interface ve 3
device(config-vif-3)# ipv6 vrrp vrid 2
device(config-vif-3-vrid-2)# owner
device(config-vif-3-vrid-2)# ipv6-address auto-gen-link-local
device(config-vif-3-vrid-2)# activate
History
Release version Command history
08.0.01 This command was introduced.
ipv6-address auto-gen-link-local
666 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
53-1003087-04
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