3Com 3C13636 Configuration Manual page 238

3Com Router 3000 Ethernet Family
Configuration Guide
Note:
Set the async interface to disable Modem dial-in in the relevant user interface view. For
more details, see the User Interface Configuration chapter.
II. auto-execute command configuration
If the async interface of the router is configured with the auto-execute command
command, and a user presses two carriage enters on its external terminal, the router
will automatically execute some commands to directly enter the operating state.
There are some restrictions in using the auto-execute command command.
If the router has only one Console port or AUX port (Console port and AUX port
share one port), the port will not support the auto-execute command command.
If the router has one Console port and one AUX port (two ports), the former will not
support the auto-execute command command, while the latter will support it.
No restriction on other types of interfaces.
The system will automatically execute a certain command configured by the
auto-execute command command on the terminal at login, and disconnect user
connection after the command terminates. In practice, Telnet is configured by the
auto-execute command command on the terminal to enable a user to automatically
connect to the specified host. Using the command will result in disabling the terminal to
configure the system. Be cautious in use.
Caution:
Before configuring the auto-execute command command and saving its configuration
(execute save), make sure that you can log in to the system to change this
configuration back by other means.
The most typical application of the auto-execute command command is that after a
user establishes connection with the router via dumb terminal mode, he/she can
remotely log in to other routers via the Telnet specified by the auto-execute command.
In this way, the router is transparent to the end user, as shown in the following figure:
3Com Corporation
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Chapter 11 Terminal Services