Filtering Routing Information - Cisco Catalyst 3750-E Software Configuration Manual

Chapter 40 Configuring IP Unicast Routing
Command
Step 3
match ip address {access-list-number |
access-list-name} [...access-list-number |
...access-list-name]
Step 4
set ip next-hop ip-address [...ip-address]
Step 5
exit
Step 6 interface interface-id
Step 7 ip policy route-map map-tag
Step 8 ip route-cache policy
Step 9 exit
Step 10
ip local policy route-map map-tag
Step 11 end
Step 12
show route-map [map-name]
Step 13
show ip policy
Step 14 show ip local policy
Step 15 copy running-config startup-config
Use the no route-map map-tag global configuration command or the no match or no set route-map
configuration commands to delete an entry. Use the no ip policy route-map map-tag interface
configuration command to disable PBR on an interface. Use the no ip route-cache policy interface
configuration command to disable fast-switching PBR. Use the no ip local policy route-map map-tag
global configuration command to disable policy-based routing on packets originating on the switch.

Filtering Routing Information

You can filter routing protocol information by performing the tasks described in this section.
OL-9775-08
Purpose
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.
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).
Return to global configuration mode.
Enter interface configuration mode, and specify the interface
to configure.
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.
If the IP policy route map contains a deny statement,
Note
the configuration fails.
(Optional) Enable fast-switching PBR. You must first enable
PBR before enabling fast-switching PBR.
Return to global configuration mode.
(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.
Return to privileged EXEC mode.
(Optional) Display all route maps configured or only the one
specified to verify configuration.
(Optional) Display policy route maps attached to interfaces.
(Optional) Display whether or not local policy routing is
enabled and, if so, the route map being used.
(Optional) Save your entries in the configuration file.
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
Configuring Protocol-Independent Features
40-101