Enabling Ipv6 Pbr - Cisco Catalyst 4500 series Administration Manual

Policy-Based Routing Configuration Tasks
Command
Step 7
Switch(config-route-map)# set default
interface interface-type interface-number
[...type ...number]
Step 8
Switch(config-route-map)# interface
interface-type interface-number
Step 9
Switch(config-if)# ip policy route-map map-tag
Use the set commands with each other. These commands are evaluated in the order shown in Step 3 in
the previous task table. A usable next hop implies an interface. Once the local switch finds a next hop
and a usable interface, it routes the packet.
Refer to the section
PBR.
Use the show route-map map-tag command to display the existing route map.
Packet and byte counters in the output of the show route-map map-tag command are not updated.
Note

Enabling IPv6 PBR

With IOS XE 3.6.0E and IOS 15.2(2)E, IPv6 PBR is not supported on Supervisor Engine 8-E.
Note
To enable PBR, you must create a route map that specifies the match criteria and the resulting action if
all of the match clauses are met. Then you must apply that route-map on a particular interface. All
packets arriving on the specified interface matching the match clauses are subject to PBR.
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
40-8
Purpose
Specifies the output interface from which the packet will be
sent if there is no explicit route for this destination. Before
forwarding the packet to the next hop, the switch looks up the
packet's destination address in the unicast routing table. If a
match is found, the packet is forwarded by using the routing
table. If no match is found, the packet is forwarded to the
specified output interface.
Packets are forwarded on the specified interface only if one of
the following conditions is met:
The destination IP address in the packet lies within the IP
•
subnet to which the specified interface belongs.
The destination IP address in the packet is reachable
•
through the specified interface (as per the IP routing
table).
If the destination IP address on the packet does not meet
either of these conditions, the packet is dropped. This action
forces matching packets to be switched in software.
Specifies the interface. This command puts the switch into
interface configuration mode.
Identifies the route map to use for PBR. One interface can
only have one route map tag, but you can have multiple route
map entries with different sequence numbers. These entries
are evaluated in sequence number order until the first match.
If no match exists, packets are routed as usual.
Policy-Based Routing Configuration Examples, page 40-12
Chapter 40 Configuring Policy-Based Routing
for examples of IPv4
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