918
Configuring IP Unicast Routing
Configuring Protocol-Independent Features
DETAILED STEPS
Command Purpose
1. configure terminal Enter global configuration mode.
2. route-map map-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-map interface 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.
3. match ip address {access-list-number |
access-list-name}
[...access-list-number |
...access-list-name]
Match the source and destination IP address that is
permitted by one or more standard or extended access
lists.
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.
4. set ip next-hop ip-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).
5. exit Return to global configuration mode.
6. interface interface-id Enter interface configuration mode, and specify the
interface to configure.
7. no shutdown Enable the interface if necessary. By default, UNIs and ENIs
are disabled and NNIs are enabled.
8. 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.
9. ip route-cache policy (Optional) Enable fast-switching PBR. You must first enable
PBR before enabling fast-switching PBR.
10. exit Return to global configuration mode.
11. 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.
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