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The following sections provide instructions for configuring on-demand PPP data links over synchronous or asynchronous interfaces, for configuring on-demand PPP data links over ISDN lines, and for configuring WAN call destinations for PPP connections.
For more information about NetWare Link/PPP and on-demand PPP connections, refer to On-Demand WAN Connections.
This topic contains the following sections:
Before you begin, you must complete the following tasks:
To configure an on-demand PPP connection over a synchronous or asynchronous interface, complete the following steps:
Load NIASCFG, then select the following parameter path:
Select Configure NIAS > Protocols and Routing > Network Interfaces
If you are configuring a new interface and the appropriate WAN board has been configured, continue with Step 2.
If you are changing the data-link protocol associated with an existing WAN interface, select that interface, then press Del to delete the current interface configuration. This changes the interface's status to Unconfigured . Press Esc to exit, then select Reinitialize System and select Network Interfaces once again.
The Network Interfaces screen displays a list of network interfaces associated with each configured board with the following information:
Scroll to an unconfigured network interface, then select it.
The Select A Medium screen is displayed.
Select PPP Routing to assign the protocol to the selected network interface.
The PPP Network Interface Configuration menu is displayed.
The Modem/DCE Type field is already highlighted; press Enter .
A list of the PPP modem and DCE device types is displayed.
Scroll through the list and do one of the following:
If your modem/device type is listed, select it.
If your modem/device type is not listed, but it uses Hayes AT commands:
A list of the available dialing modes is displayed. Options include AT Dialing , DTR Controlled , and V.25bis .
If you want V.25bis dialing:
A list of the available dialing modes is displayed. Options include AT Commands , DTR Controlled , and V.25bis .
Select Framing Type , then select a framing type from the pop-up menu.
If you use synchronous services such as switched/56 with external digital service unit/channel service unit (DSU/CSU) equipment, select SYNC (synchronous).
If you use switched telephone services with asynchronous modems, select ASYNC (asynchronous).
Select Physical Type, then select the appropriate physical type from the pop-up menu.
Options presented depend on the WAN driver that was selected. Options might include RS-232 , RS-422 , V.35 , and X.21 .
Select Interface Speed , then select the appropriate speed from the pop-up menu.
Synchronous interfaces default to, and should use, external timing provided by the modem or DSU/CSU.
NOTE: For PPP over AIO connections, if you cannot determine the speed of the UART from the documentation provided with the AIO interface, enter the load command for the AIO driver from the server prompt.
Asynchronous interfaces do not use external timing and should use a matching interface speed for both ends of the connection. Asynchronous interfaces default to 9,600 bps.
Optionally, do the following:
Select Interface Group .
A list of defined interface groups is displayed. If no interface groups have been defined, the list is empty.
Select an interface group from the list or press Ins and enter up to 17 alphanumeric characters to create an interface group.
An interface group is a grouping of several interfaces with similar characteristics, such as framing type and line speed. A symbolic name identifies an interface group. All interfaces in a group have similar characteristics and can be used interchangeably.
Press Esc to return to the Internetworking Configuration menu; save your changes when prompted.
The Network Interfaces screen is redisplayed with the interface you just configured. The interface status is Enabled ; you can use the Tab key to toggle between Enabled and Disabled . (Note that disabled interfaces are not unconfigured, but are configured interfaces that are not enabled.)
To configure another interface, repeat Step 1 through Step 10 .
If you want these changes to take effect immediately, select Reinitialize System .
If you want to configure other parameters, do so now, then reinitialize the system when you are finished.
After you have configured the desired PPP interfaces for WAN boards, you should configure one or more WAN call destinations as described in How to Configure a WAN Call Destination for an On-Demand PPP Connection.
Before you begin, you must complete the following tasks:
To configure a permanent PPP connection over a synchronous ISDN interface, complete the following steps:
Load NIASCFG, then select the following parameter path:
Select Configure NIAS > Protocols and Routing > Network Interfaces
If you are configuring a new interface and the appropriate WAN board has been configured, continue with Step 2.
If you are changing the data-link protocol associated with an existing WAN interface, select that interface, then press Del to delete the current interface configuration. This changes the interface's status to Unconfigured . Press Esc to exit, then select Reinitialize System and select Network Interfaces once again.
The Network Interfaces screen displays a list of network interfaces associated with each configured board with the following information:
Scroll to an unconfigured network interface, then select it.
The Select A Medium screen is displayed.
Select PPP Routing to assign the protocol to the selected network interface.
NOTE: For an ISDN configuration, PPP Routing is the only available medium.
The PPP Network Interface Configuration menu is displayed.
Because your configuration is using an ISDN board, the following parameters are automatically set:
The Interface Speed field is grayed out because the interface speed will be determined at dial-up by the format of the telephone number you enter when you configure the WAN call destination (refer to How to Configure a WAN Call Destination for an On-Demand PPP Connection ).
Select Modem/DCE Type .
A list of the PPP modem and DCE device types is displayed.
Select ISDN (AT Controlled) if you are using a NetWare CAPI ISDN driver or if the manufacturer of your AT ISDN driver does not provide a driver-specific terminal adapter script.
If you are configuring multiple ports and you want an incoming call to be answered by a particular port, select Local ISDN Address and enter the appropriate ISDN address.
If this parameter is configured, the port will accept incoming calls only from clients that have a matching ISDN address.
Optionally, if your service provider uses subaddresses, you can determine which port will answer an incoming call by selecting Local ISDN Sub-Address and entering the appropriate ISDN subaddress.
If this parameter is configured, the port will accept incoming calls only from clients that have a matching ISDN address. This parameter is usually not required in the United States.
Press Esc to return to the Internetworking Configuration menu; save your changes when prompted.
The Network Interfaces screen is redisplayed with the interface you just configured. The interface status is Enabled ; you can use the Tab key to toggle between Enabled and Disabled .
The default configuration for a PPP connection over a synchronous dial-up line ISDN interface has the following characteristics:
You can selectively change the values of some of these parameters, if needed. Refer to the appropriate topics in this section for detailed information.
To configure another interface, repeat Step 1 through Step 8 .
If you want these changes to take effect immediately, select Reinitialize System .
If you want to configure other parameters, do so now, then reinitialize the system when you are finished.
After you have configured the desired PPP interfaces for WAN boards, you should configure one or more WAN call destinations as described on this page.
Before you begin, you must complete the following tasks:
To configure a WAN call destination for an on-demand PPP connection, complete the following steps:
Load NIASCFG, then select the following parameter path:
Select Configure NIAS > Protocols and Routing > WAN Call Directory
Press Ins to configure a new WAN call destination.
At the prompt New Call Destination Name , enter a name of up to 47 alphanumeric characters for the new WAN call destination.
The WAN call destination name entered here is used in several other menu options when a WAN call destination name needs to be identified. You should use a descriptive name, such as the name of the remote destination or a branch or store number.
Enter a name for the new WAN call destination.
A list of supported wide area media is displayed. These are media available on previously configured interfaces.
Select PPP as the wide area medium.
The PPP Call Destination Configuration menu is displayed. The Call Type selection is highlighted. This selection specifies the type of connection to be made: permanent (continuously active) or on-demand (when activated by the presence of data traffic to the remote peer).
Press Enter , then select On-Demand from the pop-up menu.
To specify an interface name or an interface group, do one of the following:
If you are specifying an interface name, select Interface Name, then select an interface name from the pop-up menu.
If you are specifying an existing interface group, select Interface Group, then select an interface group from the pop-up menu.
When you specify an interface group, the system selects any available interface associated with the group for outbound connection attempts. For more information on interface groups, refer to Interface Groups.
For the Telephone Number field, specify a telephone number.
The ASCII string you enter in the Telephone Number field can be up to 32 alphanumeric characters. This string is used by device (modem) management when initiating the outbound call to this destination.
Select Idle Connection Timeout , specify a value that is appropriate for your system, then press Enter .
Select Outbound Authentication , then select the appropriate authentication option from the pop-up menu.
This lets you specify the authentication protocol to use for an outbound connection. You can choose from the following options:
NOTE: If you choose Either PAP or CHAP , the called PPP system will determine through negotiation which authentication protocol is used.
You cannot choose the option None for an on-demand call. A form of authentication must be enabled.
Select Password, then enter a password of up to 47 alphanumeric characters.
The value specified in this field must be the PAP password or the CHAP secret value expected from the remote peer during the PPP inbound authentication. The value cannot be a null string.
For the WAN call destination to succeed, this password and the local system ID must also be configured in the inbound authentication database of the called router.
NOTE: This field is case-sensitive.
Select Local System ID , then enter a local system ID of up to 47 alphanumeric characters.
During outbound authentication, this name is sent to the remote system to identify the local system for authentication and connection purposes. The name is also used by some remote protocol stacks to determine whether the call can be accepted as an on-demand call.
NOTE: This field is case-sensitive.
The default value is the local system server name.
Select Remote System ID , then select an ID from the pop-up menu or press Ins and enter a remote system ID of up to 47 alphanumeric characters.
This field lets you specify the name of the remote peer system associated with the WAN call destination entry. This name is typically the remote system server name. You must specify this option.
This name is accessed by some local protocol stacks to identify the WAN call destination needed to restore an on-demand connection to a remote system that previously initiated a connection to the local system.
NOTE: When you configure the protocol you will use for an on-demand PPP connection, you must configure static routes and services. Some protocol stacks do not accept an inbound connection unless they have a configured static route or service to an identified remote system.
Leave all other parameters in the PPP Call Destination Configuration menu at their default values. For a complete discussion of the other parameters in this menu, refer to the appropriate topics in this section for detailed information.
Press Esc to return to the Internetworking Configuration menu; save your changes when prompted.
If prompted, select Yes to synchronize the inbound authentication database.
The inbound authentication database is made to agree with the outbound call authentication parameters in this WAN call destination configuration. This is useful if you expect to receive calls from systems you make calls to.
The WAN call destination you configured is listed in the Configured WAN Call Destinations screen.
To configure another WAN call destination, repeat Step 2 through Step 14 .
If you want these changes to take effect immediately, select Reinitialize System .
If you want to configure other parameters, do so now, then reinitialize the system when you are finished.
If you want to further customize and optimize your connection, refer to the appropriate topics in this section for detailed information about the following parameters:
Before your WAN connection works, you must also complete the following tasks:
For information about these two tasks, refer to "Setting Up" in the appropriate protocol documentation.
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