Configuring Vrfs; Configuring A Vpn Routing Session - Cisco 4500M Software Manual

Chapter 28 Configuring VRF-lite

Configuring VRFs

To configure one or more VRFs, perform this task:
Command
Switch# configure terminal
Step 1
Switch(config)# ip routing
Step 2
Switch(config)# ip vrf vrf-name
Step 3
Switch(config-vrf)# rd
Step 4
route-distinguisher
Switch(config-vrf)# route-target
Step 5
{
export
route-target-ext-community
Switch(config-vrf)# import map
Step 6
route-map
Switch(config-vrf)# interface
Step 7
interface-id
Switch(config-if)# ip vrf forwarding
Step 8
vrf-name
Switch(config-if)# end
Step 9
Switch# show ip vrf
Step 10
interfaces
Switch# copy running-config
Step 11
startup-config
For complete syntax and usage information for the commands, refer to the switch command reference
Note
for this release and the Cisco IOS Switching Services Command Reference for Release 12.2.
Use the no ip vrf vrf-name global configuration command to delete a VRF and to remove all interfaces
from it. Use the no ip vrf forwarding interface configuration command to remove an interface from the
VRF.

Configuring a VPN Routing Session

Routing within the VPN can be configured with any supported routing protocol (RIP, OSPF, or BGP) or
with static routing. The configuration shown here is for OSPF, but the process is the same for other
protocols.
OL-6696-01
| | }
import both
[ |
brief detail
] [ ]
vrf-name
Purpose
Enters global configuration mode.
Enables IP routing.
Names the VRF, and enter VRF configuration mode.
Creates a VRF table by specifying a route distinguisher.
Enter either an AS number and an arbitrary number
(xxx:y) or an IP address and arbitrary number
(A.B.C.D:y).
Creates a list of import, export, or import and export route
target communities for the specified VRF. Enter either an
AS system number and an arbitrary number (xxx:y) or an
IP address and an arbitrary number (A.B.C.D:y).
This command is effective only if BGP is running.
Note
(Optional) Associates a route map with the VRF.
Enters interface configuration mode and specify the Layer
3 interface to be associated with the VRF. The interface
can be a routed port or SVI.
Associates the VRF with the Layer 3 interface.
Returns to privileged EXEC mode.
|
Verifies the configuration. Display information about the
configured VRFs.
(Optional) Saves your entries in the configuration file.
Software Configuration Guide—Release 12.2(25)EW
Configuring VRFs
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