8: Ports; Using Port Commands; Setting Port Access; Starting A Port - Lantronix SCS Reference Manual

8: Ports

Each SCS port can be configured in a number of ways. Configuration options include a port's start method,
available sessions, access, serial parameters, and flow control.

8.1 Using Port Commands

Most port commands require you to be the privileged user. To become the privileged user, use the Set
Privileged/Noprivileged command. This command is discussed in detail on page 12-92.
Many port commands require that the Define commands be used instead of the Set commands. Set
commands take effect immediately for the current session. Define commands do not take effect until the
port is logged out (with the Logout Port command) or the Server is rebooted.
For a more detailed explanation of the difference between Set and Define
Note:
commands, see Command Types on page 2-3.
A number of Define Port commands are designed to control modems (for example, Define Port Modem
Answer). These commands are covered in Chapter 9, Modems, and in Modem Commands on page 12-3.

8.2 Setting Port Access

A port's access may be set to one of the following: dynamic, local, remote, or none. Dynamic (the default)
permits both local and remote logins, local allows only local logins, and remote permits only remote logins.
None prevents all incoming and outgoing connections, rendering the port unusable.
If a user wants to Telnet to an SCS port and dial out using an attached modem, the port must have dynamic
or remote access. If the user wants to log into a port locally and Telnet to a remote host, the port must have
local or dynamic access.
To configure access to a port, use the Set/Define Ports Access command.
Local>> DEFINE PORT 2 ACCESS LOCAL

8.3 Starting a Port

When the SCS is booted, the ports can start up in one of two ways: they can automatically start, or wait for
character input. Each port can be individually configured; for example, one port may wait for character input
before starting while another may automatically start when the SCS is booted.
A port's start-up procedure may involve a combination of factors. For example, if modem control is enabled,
the port will wait until the modem asserts the DSR signal, then it could either automatically start, or wait for
character input before starting (depending on the port configuration).
Figure 8-1: Configuring Connection Type
8-1