Concept Guide

Task Command Syntax Command Mode
Assign an IPv4 address to the interface.
NOTE: You can assign either an IPv4
or an IPv6 address but not both.
ip address 10.1.1.1/24
INTERFACE CONFIGURATION
Assign an IPv6 address to the interface.
NOTE: You can also auto congure
an IPv6 address using the ipv6
address autoconfig command.
ipv6 address 1::1
INTERFACE CONFIGURATION
View VRF Instance Information
To display information about VRF conguration, enter the show ip vrf command.
Table 132. View VRF Instance Information
Task Command Syntax Command Mode
Display the interfaces assigned to a VRF
instance. To display information on all VRF
instances (including the default VRF 0), do
not enter a value for vrf-name.
show ip vrf [vrf-name]
EXEC
Assigning an OSPF Process to a VRF Instance
OSPF routes are supported on all VRF instances. Refer to Open Shortest Path First (OSPFv2)for complete OSPF conguration
information.
Assign an OSPF process to a VRF instance . Return to CONFIGURATION mode to enable the OSPF process. The OSPF Process ID is the
identifying number assigned to the OSPF process, and the Router ID is the IP address associated with the OSPF process.
Table 133. Assigning an OSPF Process to a VRF Instance
Task Command Syntax Command Mode
Enable the OSPFv2 process globally for a
VRF instance. Enter the VRF key word and
instance name to tie the OSPF instance to
the VRF. All network commands under this
OSPF instance are subsequently tied to the
VRF instance. process-id range: 0-65535
router ospf
process-id vrf vrf
name
CONFIGURATION
Once the OSPF process and the VRF are tied together, the OSPF Process ID cannot be used again in the system.
Conguring VRRP on a VRF Instance
You can congure the VRRP feature on interfaces that belong to a VRF instance.
In a virtualized network that consists of multiple VRFs, various overlay networks can exist on a shared physical infrastructure. Nodes (hosts
and servers) that are part of the VRFs can be congured with IP static routes for reaching specic destinations through a given gateway in
a VRF. VRRP provides high availability and protection for next-hop static routes by eliminating a single point of failure in the default static
routed network. For more information, refer to VRRP Overview.
Virtual Routing and Forwarding (VRF)
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