Solution: The remote site, i.e. your Internet Service Provider must also support this standard.
•Fault condition: Multilink PPP connections are not possible.
Possible cause: Your Internet Service Provider (ISP) does not support multilink PPP connections, or you have not configured the RAS server with a second modem entry for incoming calls.
Solution: Use the same device driver at both ends of the connection, i.e. either the ISDN CAPI Port device driver or the NDIS WAN device driver. Avoid mixed operation of the two device drivers.
•Fault condition: The modem entries “NDIS WAN Line 1” and “Line 2” are not displayed in
Possible cause: You have not followed the installation sequence exactly (see Section13.1.2).
Solution: Remove all components already installed
Using NDIS in Windows NT
The NDIS WAN CAPI Device Driver for Windows NT enables the use of Remote Access Services (RAS) over ISDN. NDIS is an abbreviation for Network Device Interface Specification, and represents a standard for binding network adapters (hardware) to network protocols (software). NDIS WAN is a Microsoft extension of this standard for Wide Area Networking (WAN). The NDIS WAN CAPI Device Driver for Windows NT thus allows the ISDN adapter to be used as a WAN adapter, addressed through the Common ISDN API (CAPI) 2.0 applications interface.
Please install the software according to these instructions. You should also refer to the Windows NT documentation pertaining to Remote Access Services (RAS).
Installation
You will need system administrator access privileges to install the NDIS WAN CAPI Device Driver for Windows NT.
Copy the NDIS WAN CAPI Device Driver software onto a floppy disk and label it accordingly.
The following components are necessary to use RAS services over ISDN:
•A computer with the Windows NT 4.0 operating system
•A fully installed ISDN adapter with CAPI 2.0 device driver (see the installation instructions in the ISDN adapter manual)
•A diskette (or CD) with the NDIS WAN CAPI Device Driver for Windows NT
The exact procedure for installing the NDIS WAN CAPI Device Driver depends on the network components already installed on your computer. To illustrate
12. Using NDIS 169
