Eiconcard Router Service Installation
- Nathaniel Halbrooks
Overview
The Eiconcard WAN Services software provides a component called the Eiconcard Routing Service, which provides an NDIS interface that can be used for IP routing. With this approach, the TCP/IP protocol stacks and the IP routing functionality are provided by the NT Server with the Microsoft-supplied protocols; the Eiconcard provides the Wide Area Networking (WAN) interface, and the WAN protocol (e.g. X.25, Frame Relay).
This is best shown in a diagram:
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The Microsoft TCP/IP stack sits on top of the two NDIS interfaces and can send and receive IP packets through either interface.
An important point to note here is that there are two distinct networks (the X.25 network and the LAN), and packets are being routed between the two networks by the Windows NT PC.
This means that the NT machine has two different IP addresses, one for each network. It is not enough for just the two host addresses to be different; the whole TCP/IP 'network' address must be different.
One of the most common errors that stops IP routing from working is when the two different IP 'networks' (X.25 and LAN) are accidentally given the same IP addressing scheme. If both interfaces (X.25 and LAN) appear to be on the same IP network, then the Microsoft routing process cannot transfer IP packets from one interface to another. An example of this would be 192.168.1.1 and 192.168.1.2 - the host address is different, but the network part of the address (192.168.1) is the same.
Installation
Open the Eiconcard Configurator. Following the driver update, the Router icon will appear.
It is necessary to configure a port for this using PPP over the 'B' Channel.
Click on the '+' sign to expand the Router options.
Select 'Connections', and add new Router Connection.
Select configured protocol.
Insert the IP address of the remote device.
Type in a suitable connection name.
Insert the ISDN number of the remote device.
Save and update the new configuration by restarting the Eiconcard(s).
The Eicon NDIS LAN Emulation device will be automatically detected.
The Eicon NDIS LAN Emulation device will appear as a 'Network Adapter' entry in Device Manager.
Configuration
Open 'Network and Dial-up Connections'. The Eicon NDIS LAN Emulation will appear as Local Area Connection 2.
Choose TCP/IP properties.
Insert an IP address for the NDIS Interface.
Restarting the Eiconcard configuration program will automatically update the TCP/IP properties.
Insert the authentication information required to connect with the remote device.
Go the Command prompt and test the connection by PINGing the remote IP address.