Packet type-based interface PBR configuration example

As shown in Figure 17, Switch B and Switch C cannot reach each other.

Configure PBR on Switch A to forward all TCP packets received on VLAN-interface 11 to the next hop 1.1.2.2 (Switch B).

1. Make sure Switch B and Switch C can reach Host A. (Details not shown.)

2. Configure Switch A:

   # Create VLAN 10 and VLAN 20.

   <SwitchA> system-view
   [SwitchA] vlan 10
   [SwitchA-vlan10] quit
   [SwitchA] vlan 20
   [SwitchA-vlan20] quit
   

   # Configure the IP addresses of VLAN-interface 10 and VLAN-interface 20.

   [SwitchA] interface vlan-interface 10
   [SwitchA-Vlan-interface10] ip address 1.1.2.1 24
   [SwitchA-Vlan-interface10] quit
   [SwitchA] interface vlan-interface 20
   [SwitchA-Vlan-interface20] ip address 1.1.3.1 24
   [SwitchA-Vlan-interface20] quit
   

   # Configure ACL 3101 to match TCP packets.

   [SwitchA] acl advanced 3101
   [SwitchA-acl-ipv4-adv-3101] rule permit tcp
   [SwitchA-acl-ipv4-adv-3101] quit
   

   # Configure Node 5 for the policy aaa to forward TCP packets to next hop 1.1.2.2.

   [SwitchA] policy-based-route aaa permit node 5
   [SwitchA-pbr-aaa-5] if-match acl 3101
   [SwitchA-pbr-aaa-5] apply next-hop 1.1.2.2
   [SwitchA-pbr-aaa-5] quit
   

   # Configure interface PBR by applying the policy aaa to VLAN-interface 11.

   [SwitchA] interface vlan-interface 11
   [SwitchA-Vlan-interface11] ip address 10.110.0.10 24
   [SwitchA-Vlan-interface11] ip policy-based-route aaa
   [SwitchA-Vlan-interface11] quit
   

# On Host A, Telnet to Switch B that is directly connected to Switch A. The operation succeeds. (Details not shown.)

# On Host A, Telnet to Switch C that is directly connected to Switch A. The operation fails. (Details not shown.)

# Ping Switch C from Host A. The operation succeeds. (Details not shown.)

Telnet uses TCP, and ping uses ICMP. The results show the following:

• All TCP packets arriving on VLAN-interface 11 of Switch A are forwarded to next hop 1.1.2.2.

• Other packets are forwarded through VLAN-interface 20.

• The interface PBR configuration is effective.