Configuring TCP/IP Software for the PC

Use the following procedure to configure the TCP/IP software for XDB Link. Use your values from the TCP Host/Service worksheet to complete these steps.

To configure TCP/IP perform the following steps:

1. Install a TCP/IP protocol. If a TCP/IP protocol is already installed (for example, Microsoft TCP/IP), ensure that it is enabled.
2. Make a backup copy of the HOSTS and SERVICES files (under Windows 95, these files are called HOSTS.SAM and SERVICES.SAM).

   If you a running under...	Look for these files in...
   Windows NT	C:\WinNT\SYSTEM32\DRIVERS\ETC
   Windows 95 or 98	C:\WINDOWS

3. Add the following line to the HOSTS file:

   IPAddress IPName

   where:

   • IPAddress specifies the TCP/IP address of the host system. Use the value in J1 of the TCP Host/Service worksheet.
   • IPName is a name that you assign to this address. Type IPName in uppercase letters. Lowercase characters will cause problems under certain circumstances. Use the value in J2 of the TCP Host/Service Worksheet.

   For example: 204.17.148.230 LUDB2

   Note:

   If this is the last line in the HOSTS file, type a carriage return at the end of the line.

4. Edit the SERVICES file by adding the following line:

   ServiceName Port/tcp

   where:

   ServiceName specifies a name that represents the port number on the host system. (You will use this name when you configure XDB Link in a later step.) Type the ServiceName in uppercase letters. Lowercase characters will cause problems under certain circumstances.

   Port specifies the dedicated TCP/IP port assigned to the XDB Link Host Option on the host system. Use the value in J4 of the TCP Host/Service worksheet.

   For example:

   XDBSRV 5170/tcp

   Note:

   If this is the last line in the SERVICES file, type a carriage return at the end of the line.

When connecting to DB2 with native TCP/IP:

• Choose DRDA(TCP/IP) as your Connection Type
• The Remote Host entry should match the mainframe's IP address entry in your HOSTS file.
• The port entry should match the DB2 port entry in your SERVICES file. IBM's default port is 446/tcp but users should check with their administrators to find out what port their DB2 listens on.