R3102-R3103-HP 6600/HSR6600 Routers Layer 3 - IP Routing Configuration Guide

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# Configure Node 5 for policy aaa to forward TCP packets through Serial 2/2/0.
[RouterA] policy-based-route aaa permit node 5
[RouterA-pbr-aaa-5] if-match acl 3101
[RouterA-pbr-aaa-5] apply output-interface serial 2/2/0
[RouterA-pbr-aaa-5] quit
# Configure interface PBR by applying the policy aaa on GigabitEthernet 2/1/1.
[RouterA] interface GigabitEthernet 2/1/1
[RouterA-GigabitEthernet2/1/1] ip address 10.110.0.10 255.255.255.0
[RouterA-GigabitEthernet2/1/1] ip policy-based-route aaa
[RouterA-GigabitEthernet2/1/1] quit
# Configure the IP addresses of the serial interfaces.
[RouterA] interface serial 2/2/0
[RouterA-Serial2/2/0] ip address 1.1.2.1 255.255.255.0
[RouterA-Serial2/2/0] quit
[RouterA] interface serial 2/2/1
[RouterA-Serial2/2/1] ip address 1.1.3.1 255.255.255.0
2. Configure Router B:
# Configure a static route to subnet 10.110.0.0/24.
<RouterB> system-view
[RouterB] ip route-static 10.110.0.0 24 1.1.2.1
# Configure the IP address of the serial interface.
[RouterB] interface serial 2/2/0
[RouterB-Serial2/2/0] ip address 1.1.2.2 255.255.255.0
3. Configure Router C:
# Configure a static route to subnet 10.110.0.0/24.
<RouterC> system-view
[RouterC] ip route-static 10.110.0.0 24 1.1.3.1
# Configure the IP address of the serial interface.
[RouterC] interface serial 2/2/1
[RouterC-Serial2/2/1] ip address 1.1.3.2 255.255.255.0
4. Verify the configuration:
Configure the IP address 10.110.0.20/24 for Host A, and specify its gateway address as
10.110.0.10.
On Host A, Telnet to Router B that is directly connected to Router A. The operation succeeds.
On Host A, Telnet to Router C that is directly connected to Router A. The operation fails.
Ping Router C from Host A. The operation succeeds.
Telnet uses TCP and ping uses ICMP. The preceding results show that all TCP packets received on
GigabitEthernet 2/1/1 of Router A are forwarded through Serial 2/2/0, and other packets are
forwarded through Serial 2/2/1. The interface PBR configuration is effective.
Configuring interface PBR based on packet length
Network requirements
As shown in Figure 86, configure interface PBR to guide the forwarding of packets received on
GigabitEthernet 2/1/1 of Router A as follows: