Cisco Catalyst 4500 Series Configuration Guide

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Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
OL-25340-01
Chapter 39 Configuring VRF-lite
Configuring VRF-Aware Services
Configuring the User Interface for SNMP
To configure VRF-aware services for SNMP, perform this task:
Configuring the User Interface for uRPF
You can configure uRPF on an interface assigned to a VRF. Source lookup is performed in the VRF table.
To configure VRF-aware services for uRPF, perform this task:
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# snmp-server trap
authentication vrf
Enables SNMP traps for packets on a VRF.
Step 3
Switch(config)# snmp-server engineID
remote host vrf vpn-instance
engine-id string
Configures a name for the remote SNMP engine on a switch.
Step 4
Switch(config)# snmp-server host
host vrf vpn-instance traps
community
Specifies the recipient of an SNMP trap operation and specifies the VRF
table to be used for sending SNMP traps.
Step 5
Switch(config)# snmp-server host
host vrf vpn-instance informs
community
Specifies the recipient of an SNMP inform operation and specifies the
VRF table to be used for sending SNMP informs.
Step 6
Switch(config)# snmp-server user
user group remote host vrf vpn-
instance security model
Adds a user to an SNMP group for a remote host on a VRF for SNMP
access.
Step 7
Switch(config)# end
Returns to privileged EXEC mode.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# interface
interface-id
Enters interface configuration mode and specifies the Layer 3 interface
to configure.
Step 3
Switch(config-if)# no switchport
Removes the interface from Layer 2 configuration mode if it is a
physical interface.
Step 4
Switch(config-if)# ip vrf forwarding
vrf-name
Configures VRF on the interface.
Step 5
Switch(config-if-vrf)# ip address
ip-address subnet-mask
Enters the IP address for the interface.
Step 6
Switch(config-if-vrf)# ip verify
unicast source reachable-via
rx allow-default
Enables uRPF on the interface.
Step 7
Switch(config-if-vrf)# end
Returns to privileged EXEC mode.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E