Host-Initiated Connections
Using the MSS
5 - 2
5.1 Host-Initiated Connections
5.1.1 Socket Connections
Each node on a network has a node address, and each node address can
allow connections on one or more sockets. Sometimes these sockets are
referred to as ports. TCP/IP and IPX connections can be made directly to
the MSS serial port using sockets.
There are two categories of sockets. Well-known sockets are those that
have been defined in RFCs (Requests for Comments); for example, port
23 is used for Telnet connections. There are also custom sockets that users
and developers define for their specific needs.
NOTE:
If the serial port is in use, the socket connection will be refused.
5.1.1.1 TCP/IP Socket Connections
The MSS supports TCP/IP socket connections to ports 2001 and 3001.
Opening a TCP session to port 3001 will form a raw TCP/IP connection
to the serial port. Port 2001 can be used when Telnet IAC interpretation is
needed.
To specify a connection to a socket, use the Telnet command followed by
the MSS IP address (or resolvable name) and the desired socket number.
Figure 5-1:
TCP/IP Socket Connection
5.1.1.2 IPX/SPX Socket Connections
The MSS supports SPX socket connections to port 9001. To make a socket
connection, use the SPX command followed by the SAP name of the MSS.
Figure 5-2:
SPX Socket Connection
% TELNET mymss:2001
Local> SPX MSS_xxxxxx_S1