Lantronix XPORT PROTM 900-560 - Manual (Page 52)

6: Line and Tunnel Settings
XPort Pro User Guide 52
5. Click Submit.
6. Repeat above steps as desired, according to additional tunnel(s) available on your product.
Tunnel – Modem Emulation
A tunnel in Connect Mode can be initiated using modem commands incoming from the Serial Line.
This page enables you to configure the modem emulation settings when you select Modem
Emulation as the Tunnel Connect Mode type.The Modem Emulation Command Mode supports the
standard AT command set. For a list of available commands from the serial or Telnet login, enter
AT?. Use ATDT, ATD, and ATDP to establish a connection. All of these commands behave like a
modem. For commands that are valid but not applicable to the XPort Pro, an “OK” message is sent
(but the command is silently ignored).
The XPort Pro attempts to make a Command Mode connection as per the IP/DNS/port numbers
defined in Connect Mode. It is possible to override the remote address, as well as the remote port
number.
The following table lists and describes the available commands.
Modem Control Select Enabled to disconnect when the modem control pin is not
asserted on the serial line.
Timeout Enter a time, in milliseconds, for the device to disconnect on a Timeout.
The value 0 (zero) disables the idle timeout.
Flush Serial Data Select Enabled to flush the serial data buffer on a disconnection.
Table 6-20 Modem Emulation Commands and Descriptions
Command Description
+++ Switches to Command Mode if entered from serial port during connection.
AT? Help.
ATDT<Address Info> Establishes the TCP connection to socket (<ipaddress>:<port>).
ATDP<Address Info> See ATDT.
ATD Like ATDT. Dials default Connect Mode remote address and port.
ATD<Address Info> Sets up a TCP connection. A value of 0 begins a command line interface
session.
ATO Switches to data mode if connection still exists. Vice versa to '+++'.
ATEn Switches echo in Command Mode (off - 0, on - 1).
ATH Disconnects the network session.
ATI Shows modem information.
ATQn Quiet mode (0 - enable results code, 1 - disable results code.)
ATVn Verbose mode (0 - numeric result codes, 1 - text result codes.)
ATXn Command does nothing and returns OK status.
ATUn Accept unknown commands. (n value of 0 = off. n value of 1 = on.)
Tunnel – Disconnect
Mode Settings Description