IPoA configuration example

As shown in Figure 67, Router A, B, and C are connected to the ATM network for intercommunication.

The IP addresses of their ATM interfaces of the three routers are 202.38.160.1/24, 202.38.160.2/24, and 202.38.160.3/24, respectively.

In the ATM network, the VPI/VCI of Router A is 0/40 and 0/41, connecting to Router B and Router C, respectively. The VPI/VCI of Router B is 0/50 and 0/51, connecting to Router A and C, respectively. The VPI/VCI of Router C is 0/60 and 0/61, connected with Router A and B, respectively.

All the PVCs on ATM interfaces of the three routers operate in IPoA application mode.

1. Configure Router A:

   # Enter the view of the ATM 1/0 interface and configure an IP address for it.

   <RouterA> system-view
   [RouterA] interface atm 1/0
   [RouterA-Atm1/0] ip address 202.38.160.1 255.255.255.0
   

   # Establish a PVC and enable it to carry IP.

   [RouterA-Atm1/0] pvc to_b 0/40
   [RouterA-atm-pvc-Atm1/0-0/40-to_b] map ip 202.38.160.2
   [RouterA-atm-pvc-Atm1/0-0/40-to_b] quit
   [RouterA-Atm1/0] pvc to_c 0/41
   [RouterA-atm-pvc-Atm1/0-0/41-to_c] map ip 202.38.160.3
   

2. Configure Router B:

   # Enter the view of the ATM 1/0 interface and configure an IP address for it.

   <RouterB> system-view
   [RouterB] interface atm 1/0
   [RouterB-Atm1/0] ip address 202.38.160.2 255.255.255.0
   

   # Establish a PVC and enable it to carry IP.

   [RouterB-Atm1/0] pvc to_a 0/50
   [RouterB-atm-pvc-Atm1/0-0/50-to_a] map ip 202.38.160.1
   [RouterB-atm-pvc-Atm1/0-0/50-to_a] quit
   [RouterB-Atm1/0] pvc to_c 0/51
   [RouterB-atm-pvc-Atm1/0-0/51-to_c] map ip 202.38.160.3
   

3. Configure Router C:

   # Enter the view of the ATM 1/0 interface and configure an IP address for it.

   <RouterC> system-view
   [RouterC] interface atm 1/0
   [RouterC-Atm1/0] ip address 202.38.160.3 255.255.255.0
   

   # Establish a PVC and enable it to carry IP.

   [RouterC-Atm1/0] pvc to_a 0/60
   [RouterC-atm-pvc-Atm1/0-0/60-to_a] map ip 202.38.160.1
   [RouterC-atm-pvc-Atm1/0-0/60-to_a] quit
   [RouterC-Atm1/0] pvc to_b 0/61
   [RouterC-atm-pvc-Atm1/0-0/61-to_b] map ip 202.38.160.2