Configuring Multicast Vrfs - Cisco Catalyst 4500 series Administration Manual

Chapter 41 Configuring VRF-lite
Command or Action
Step 10
aaa group server tacacs+ group-name
Example:
Switch (config)# aaa group server tacacs+
tacacs1
Step 11
server-private {ip-address | name} [nat]
[single-connection] [port port-number]
[timeout seconds] [key [0 | 7] string]
Example:
Switch (config-sg-tacacs+)# server-private
10.1.1.1 port 19 key cisco
Step 12
Switch (config-sg-tacacs+)# ip vrf forwarding
vrf-name
Step 13
Switch (config-sg-tacacs+)# ip tacacs
source-interface subinterface-name
Step 14
Switch (config-sg-tacacs)# exit
The following example lists all the steps to configure per-VRF TACACS+:
Switch> enable
Switch# configure terminal
Switch (config)# ip vrf cisco
Switch (config-vrf)# rd 100:1
Switch (config-vrf)# exit
Switch (config)# interface Loopback0
Switch (config-if)# ip vrf forwarding cisco
Switch (config-if)# ip address 10.0.0.2 255.0.0.0
Switch (config-if)# exit
Switch (config-sg-tacacs+)# ip vrf forwarding cisco
Switch (config-sg-tacacs+)# ip tacacs source-interface Loopback0
Switch (config-sg-tacacs)# exit
For more information about configuring per-VRF for TACACS+ server,
http://www.cisco.com/en/US/docs/ios/sec_user_services/configuration/guide/sec_vrf_tacas_svrs.pdf

Configuring Multicast VRFs

To configure multicast within a VRF table, 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)# ip
Step 4
multicast-routing vrf vrf-name
OL_28731-01
Purpose
Groups different TACACS+ server hosts into distinct lists
and distinct methods and enters server-group configuration
mode.
Configures the IP address of the private TACACS+ server
for the group server.
Configures the VRF reference of a AAA TACACS+ server
group.
Uses the IP address of a specified interface for all outgoing
TACACS+ packets.
Exits server-group configuration mode.
Purpose
Enters global configuration mode.
Enables IP routing.
Names the VRF and enters VRF configuration mode.
(Optional) Enables global multicast routing for VRF table.
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
Configuring VRF-lite for IPv4
41-7