Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 41 Configuring VRF-lite
Configuring VRF-lite for IPv6
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:
Configuring the User Interface for Traceroute
To configure VRF-aware services for traceroute, perform this task:
Configuring the User Interface for FTP and TFTP
You must configure some FTP and TFTP CLIs in order for FTP and TFTP to be VRF-aware. For
example, if you want to use a VRF table that is attached to an interface (for example, E1/0), you need to
configure the ip [t]ftp source-interface E1/0 command to inform [t]ftp to use a specific routing table.
In this example, the VRF table is used to look up the destination IP address. These changes are
backward-compatible and do not affect existing behavior. You can use the source-interface CLI to send
packets out a particular interface even if no VRF is configured on that interface.
To specify the source IP address for FTP connections, use the ip ftp source-interface show mode
command. To use the address of the interface where the connection is made, use the no form of this
command.
To configure the user interface for FTP and TFTP, perform this task:
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.
Command Purpose
traceroute vrf vrf-name ipaddress
Specifies the name of a VPN VRF in which to find the destination
address.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration 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