Continued from step 2.

3. Set up virtual ports for the X.25 connections across the WAN. Select one of these encapsulation methods from Configuration Options:

Encapsulation Method	Usage
X.25 Over PANL (4400)	Use this method for Passport 4400 to Passport 4400 connections. The Configurator will establish an SVC to transport X.25 traffic across the WAN.
X.25 Over PANL (6400)	Use this method if the connection includes a Passport 6400 unit in the path. The Configurator will establish an SPVC to transport X.25 traffic across the network.
X.25 Over Annex G	Use this method if the connection destination is a FRAD. The Configurator will establish a PVC to transport X.25 traffic to the FRAD.




After you select the encapsulation method, you are presented with a series of configuration screens in a wizard-like fashion. These screens provide a minimal configuration necessary to get the X.25 service operating. Using these screens requires you to enter parameter values, click on the Save button to save the parameter values, then click on Next to go to the next screen. Here is the sequence of screens:

Encapsulation Method	Configurator Screen Sequence
X.25 Over PANL (4400)	Add a Virtual Port. Enter the Port Number. Add a SVC Mapping. Enter the following: - Remote DNA (X.25 address pattern). - Pass-thru Connection (Tx) Priority. - Data Transfer Priority. - Connection Setup Priority. Add an X.25 LAPB Entry. Select the Station type (DCE, DTE). Make sure that one end of the X.25 connection is DCE and the other end is DTE. Add an X.25 Packet Level Interface. These are standard X.25 network parameters. Enter the values required by your network. If you are planning on using X.25 PVCs, you should enter the number of PVCs in the field provided. Add a X.25 Route (Virtual). Enter the Routing Index number and the X.25 address pattern (DNA). An asterisk (*) can be used as part of the X.25 address pattern.
X.25 Over PANL (6400)	Add a Virtual Port. Enter the Port Number. Add a SPVC Mapping. Enter the following: - Local DLCI. - Remote DLCI. - Remote DNA (X.25 address pattern). - Connection type (slave, master). Add an X.25 LAPB Entry. Select the Station type (DCE, DTE). Make sure that one end of the X.25 connection is DCE and the other end is DTE. Add an X.25 Packet Level Interface. These are standard X.25 network parameters. Enter the values required by your network. If you are planning on using X.25 PVCs, you should enter the number of PVCs in the field provided. Add a X.25 Route (Virtual). Enter the Routing Index number and the X.25 address pattern (DNA). An asterisk (*) can be used as part of the X.25 address pattern.
X.25 Over Annex G	Add a Virtual Port. Enter the Port Number. Add a PVC Mapping. Enter the netlink (tunnel) index. A list of available netlink indexes is shown on the bottom of the screen. Add an X.25 LAPB Entry. Select the Station type (DCE, DTE). Make sure that one end of the X.25 connection is DCE and the other end is DTE. Add an X.25 Packet Level Interface. These are standard X.25 network parameters. Enter the values required by your network. If you are planning on using X.25 PVCs, you should enter the number of PVCs in the field provided. Add a X.25 Route (Virtual). X.25 over Annex G uses a PVC. PVCs do not use DNA addresses. Do not enter a DNA address in this screen. Leave this screen blank and click on the Save link.




Refer to Configuring X.25 SVCs for information about the X.25 routing table.

After completing the sequence of screens, the X.25 Service screen is redisplayed. You will see this message, indicating the unit needs to be reset to put the X.25 service configuration into effect:



At this point, the unit is configured with the basic parameters to make the X.25 services functional. However, your X.25 network may require additional settings to the X.25 Services parameters. These additional settings can be entered from the screens listed along the top of the X.25 Service screen (X.25 LAPB and X.25 Interface). You should review each of these screens as appropriate to the encapsulation type you selected earlier and adjust the parameters as required by your network.

For procedures and details about the X.25 Interface screen, refer to Defining X.25 Parameters. For procedures and details about the X.25 LAPB screen, refer to Defining LAPB Parameters.

If you need to establish X.25 PVCs, see Configuring X.25 PVCs Using the Configurator for more information.

Continue on to step 4.