Lantronix ETS, Справочное руководство

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5-1
5: Ports
All Lantronix products have two types of ports: physical and virtual.
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There is one physical port for every serial or parallel connector on the ETS. Physical ports are
numbered starting with 1. Devices connected to the physical ports are governed by characteristics set
up for the individual ports with the Set/Define Ports commands explained in this chapter.
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There is one virtual port on every ETS. Referred to as port 0, it governs all incoming Telnet and
Rlogin connections (those that are not associated with a physical port). Virtual ports are configured
the same way as physical ports, the only difference being that all incoming connections get the same
set of port characteristics.
Note:
Virtual ports are explained further in Section 5.1.3 on page 5-5.
5.1 Port Commands
Initial port configuration should be straightforward; the majority of the ports will probably be used for local
terminal connections. If so, commands in the following format should be sufficient.
Figure 5-1: Configuration Command
Most port commands require you to be the privileged user. Also, many port commands require that the
Define command be used rather than the Set command. For a comparison of the Set, Save, and Define
commands, see Command Types on page 3-4.
If you’re entering a number of commands at once, you may wish to enable the Command Completion
characteristic. When command completion is enabled, the ETS will complete partially-typed commands
when either the Space or Tab key is pressed. This can save time and reduce errors if you’re entering several
commands at a time. To enable command completion, use the following command:
Figure 5-2: Enabling Command Completion
5.1.1 Port Access
A port’s access may be set to one of the following: Dynamic, Local, Remote, or None. Dynamic permits
both local and remote logins. Local permits only local logins and allows the port to initiate connections to
services, while Remote permits only network connection requests. None prevents all incoming and
outgoing connections, rendering the port unusable. The default setting is Local access for all ports.
Local>> DEFINE PORT ALL AUTOSTART ENABLED
Local>> DEFINE PORT 2 COMMAND COMPLETION ENABLED