Network Transport Requirements

After you select the type of transport stack you need, install and configure the network software and hardware required to support the connection. For example, to connect to another X.400 system over Transport Control Protocol/Internet Protocol (TCP/IP), install and configure TCP/IP network software for Windows NT Server before configuring an X.400 transport stack and an X.400 Connector.

To use an X.25 connection, at least one Microsoft Exchange Server computer in your site must have:

• An Eicon X.25 port adapter and a direct or dial-up connection to the other system.
• Eicon WAN services for Windows NT Server software (version 3/Release 3 or later) installed and configured.
• A Microsoft Exchange Server X.400 MTA transport stack for X.25 installed and configured. This includes Transport Class 0 (TP0) software for use with X.25.
• At least one X.400 Connector in the site defined to use the transport stack.

To use a TCP/IP connection, at least one Microsoft Exchange Server computer in your site must have:

• A network adapter and connection that supports TCP/IP.
• Windows NT Server TCP/IP network services.
• A Microsoft Exchange Server X.400 MTA transport stack for TCP/IP. This includes Request for Comments (RFC) 1006 software that supports X.400 connections over a TCP/IP network.
• At least one X.400 Connector in the site defined to use the transport stack.

To use a Transport Class 4 (TP4) connection, at least one Microsoft Exchange Server computer in your site must have:

• A network adapter and connection that support TP4.
• Windows NT Server TP4 network services.
• A Microsoft Exchange Server X.400 transport stack for TP4. This includes Connectionless Network Protocol (CLNP) software for use with TP4.
• At least one X.400 Connector defined in the site to use the transport stack.

X.25 services are supplied with Eicon WAN Services for Windows NT Server. TCP/IP software is provided with Windows NT Server, and TP4 is provided with Microsoft Exchange Server. Microsoft Exchange Server X.400 transport stacks are provided with the X.400 Connector software.