Connecting LANs through an Annex G DLCI

As shown in Figure 30, Router A and Router B are connected with serial interfaces. It is desirable to use frame relay PVCs to transmit X.25 packets. Router A operates as the DCE and Router B operates as the DTE.

1. Configure Router A:

   # Create an X.25 template.

   <RouterA> system-view
   [RouterA] x25 template vofr
   

   # Configure the local X.25 address.

   [RouterA-x25-vofr] x25 x121-address 10094
   

   # Configure the X.25 address mapping to the destination IP address.

   [RouterA-x25-vofr] x25 map ip 202.38.163.252 x121-address 20094
    [RouterA-x25-vofr] quit
   

   # Assign an IP address to the local interface.

   [RouterA] interface serial 2/0
   [RouterA–Serial2/0] ip address 202.38.163.251 255.255.255.0
   

   # Enable frame relay on the interface and configure the interface to operate in DCE mode.

   [RouterA–Serial2/0] link-protocol fr
   [RouterA–Serial2/0] fr interface-type dce
   

   # Create a PVC.

   [RouterA–Serial2/0] fr dlci 100
   

   # Configure the PVC to operate in Annex G DCE mode.

   [RouterA-fr-dlci-Serial2/0-100] annexg dce
   

   # Apply the X.25 template to the PVC.

   [RouterA-fr-dlci-Serial2/0-100] x25-template vofr
   [RouterA-fr-dlci-Serial2/0-100] quit
   

   # Configure the FR address mapping to the destination IP address.

   [RouterA–Serial2/0] fr map ip 202.38.163.252 100
   

2. Configure Router B:

   # Create an X.25 template.

   <RouterB> system-view
   [RouterB] x25 template vofr
   

   # Configure the local X.25 address.

   [RouterB-x25-vofr] x25 x121-address 20094
   

   # Configure the X.25 address mapping to the destination IP address.

   [RouterB-x25-vofr] x25 map ip 202.38.163.251 x121-address 10094
   [RouterB-x25-vofr] quit
   

   # Assign an IP address to the local interface.

   [RouterB] interface serial 2/0
   [RouterB–Serial2/0] ip address 202.38.163.252 255.255.255.0
   

   # Enable frame relay on the interface and configure the interface to operate in DTE mode.

   [RouterB–Serial2/0] link-protocol fr
   [RouterB–Serial2/0] fr interface-type dte
   

   # Create a frame relay PVC.

   [RouterB–Serial2/0] fr dlci 100
   

   # Configure the PVC to operate in Annex G DTE mode.

   [RouterB-fr-dlci-Serial2/0-100] annexg dte
   

   # Apply the X.25 Template to the PVC.

   [RouterB-fr-dlci-Serial2/0-100] x25-template vofr
   [RouterB-fr-dlci-Serial2/0-100] quit
   

   # Configure the FR address mapping to the destination IP address.

   [RouterB–Serial2/0] fr map ip 202.38.163.251 100