3Com Switch 8800 Advanced Software V5 Configuration Guide

254 CHAPTER 25: ROUTING POLICY CONFIGURATION
# Configure an ACL with the number of 2002, letting pass route 172.17.2.0/24.
[SwitchB] acl number 2002
[SwitchB-acl-basic-2002] rule permit source 172.17.2.0 0.0.0.255
[SwitchB-acl-basic-2002] quit
# Configure an IP prefix list named prefix-a, letting pass route 172.17.1.0/24.
[SwitchB] ip ip-prefix prefix-a index 10 permit 172.17.1.0 24
5 Configure a routing policy.
[SwitchB] route-policy isis2ospf permit node 10
[SwitchB-route-policy] if-match ip-prefix prefix-a
[SwitchB-route-policy] apply cost 100
[SwitchB-route-policy] quit
[SwitchB] route-policy isis2ospf permit node 20
[SwitchB-route-policy] if-match acl 2002
[SwitchB-route-policy] apply tag 20
[SwitchB-route-policy] quit
[SwitchB] route-policy isis2ospf permit node 30
[SwitchB-route-policy] quit
6 Apply the routing policy to route redistribution.
# Configure Switch B: apply the routing policy when redistributing routes.
[SwitchB] ospf
[SwitchB-ospf-1] import-route isis 1 route-policy isis2ospf
[SwitchB-ospf-1] quit
# Display the OSPF routing table on Switch A. You can find the cost of route
172.17.1.0/24 is 100, tag of route 172.17.1.0/24 is 20, and other external routes
have no change.
[SwitchA] display ospf routing
OSPF Process 1 with Router ID 192.168.1.1
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
192.168.1.0/24 1 Transit 192.168.1.1 192.168.1.1 0.0.0.0
Routing for ASEs
Destination Cost Type Tag NextHop AdvRouter
172.17.1.0/24 100 Type2 1 192.168.1.2 192.168.2.2
172.17.2.0/24 1 Type2 20 192.168.1.2 192.168.2.2
172.17.3.0/24 1 Type2 1 192.168.1.2 192.168.2.2
192.168.2.0/24 1 Type2 1 192.168.1.2 192.168.2.2
Total Nets: 5
Intra Area: 1 Inter Area: 0 ASE: 4 NSSA: 0
Applying Routing Policy
When Redistributing
IPv6 Routes
Network requirements
■ Enable RIPng and configure three static routes on Switch A.
■ Apply a routing policy when redistributing static routes, making routes in
20::0/32 and 40::0/32 pass, routes in 30::0/32 filtered.
■ Display RIPng routing table information on Switch B to verify the configuration.