Cisco Systems 3750E manual Ip policy route-map map-tag, Ip route-cache policy, 38-86

Chapter 38 Configuring IP Unicast Routing

Configuring Protocol-Independent Features

Beginning in privileged EXEC mode, follow these steps to configure PBR:

	Command		Purpose
Step 1	configure terminal		Enter global configuration mode.
Step 2	route-mapmap-tag [permit] [sequence number]		Define any route maps used to control where packets are
			output, and enter route-map configuration mode.
			• map-tag—A meaningful name for the route map. The ip
			policy route-mapinterface configuration command uses
			this name to reference the route map. Multiple route maps
			might share the same map tag name.
			• (Optional) If permit is specified and the match criteria
			are met for this route map, the route is policy-routed as
			controlled by the set actions.
			Note The route-map deny statement is not supported in
			PBR route maps to be applied to an interface.
			• sequence number (Optional)— Number that shows the
			position of a new route map in the list of route maps
			already configured with the same name.
Step 3	match ip address {access-list-number		Match the source and destination IP address that is permitted
	access-list-name}[...access-list-number		by one or more standard or extended access lists.
	...access-list-name]		Note Do not enter an ACL with a deny ACE or an ACL that
			permits a packet destined for a local address.
			If you do not specify a match command, the route map applies
			to all packets.
Step 4	set ip next-hopip-address [...ip-address]		Specify the action to take on the packets that match the
			criteria. Set next hop to which to route the packet (the next hop
			must be adjacent).
Step 5	exit		Return to global configuration mode.
Step 6	interface interface-id		Enter interface configuration mode, and specify the interface
			to configure.
Step 7	ip policy route-map map-tag		Enable PBR on a Layer 3 interface, and identify the route map
			to use. You can configure only one route map on an interface.
			However, you can have multiple route map entries with
			different sequence numbers. These entries are evaluated in
			sequence number order until the first match. If there is no
			match, packets are routed as usual.
			Note If the IP policy route map contains a deny statement,
			the configuration fails.
Step 8	ip route-cache policy		(Optional) Enable fast-switching PBR. You must first enable
			PBR before enabling fast-switching PBR.
Step 9	exit		Return to global configuration mode.
Step 10	ip local policy route-map map-tag		(Optional) Enable local PBR to perform policy-based routing
			on packets originating at the switch. This applies to packets
			generated by the switch and not to incoming packets.
		Catalyst 3750-E and 3560-E Switch Software Configuration Guide
38-86			OL-9775-02