User guide

IOLAN+, IOLAN+ Rack & IOLAN+ 102/104 User guide
Port setup menu
Page 137
Chapter 10 The menu interface
Access
This section controls the type of the connection made from this port. This is the most
important section in defining a port. The parameters are as follows:
Option Description
Access This field defines the type of service that is operating on this port.
Default is Local.
Local This is the normal setting for terminals/PCs.
Remote This setting indIOLAN+ should be listening on the ethernet for
connections from a remote host. The TCP port for the communications
server to listen on, must be entered in the Local Port field. This setting
should be used for printers, dial-out modems and reverse telnet
connections.
Dynamic This setting should be used for dial-in/dial-out modems. This setting is a
combination of the local and remote settings. The communications
server listens both on the serial port for incoming characters and on the
network for incoming connections. When it gets either, it behaves as the
appropriate type of connection until that session is terminated,
whereupon it goes back to listening again.
UDP This setting indicates the IOLAN+ should be listening on the ethernet
for connections from a remote host. The UDP port for the
communications server to listen on, must be entered in the Local Port
field. When using UDP access there are several methods to specifying
which host can connect to the serial port. To configure a specific host fill
in the ”Hosts” and “Remote port” fields. If you wish for the IOLAN to
learn the hosts, leave the “Hosts” and “Remote ports” fields blank. The
IOLAN will learn the host using the first datagram received on the “Local
port” to determine this. To allow multiple hosts to send data to a serial
port , configure the “Hosts” field with “255.255.255.254” and the
“Remote port” field with zero. This will allow any host to send data to the
serial port. All data from the serial port will be discarded. To configure to
allow two hosts to make full connections to the serial port, you must
specify the first host in the “Hosts” and Remote port” fields and the
second host in the “Src” field under IP addresses. The second host will
use the same port number as the first host.
SLIP This will set the port into SLIP mode.
PPP This setting puts the port into a dedicated PPP line.
Listen This setting is similar to Remote, however, DTR/RTS will only be raised
once a network connection is establish.
None Sets port to disabled.
CSLIP This setting puts the port into dedicated CSLIP status.