6: Line and Tunnel Settings
XPort AR User Guide
48
Modem Control Asserted
—A connection is attempted as long as the
Modem Control (DSR) is asserted, until a connection is made.
Configure the Modem Control Asserted setting (for DSR or DTR) to start
a connection when the signal is asserted. The XPort AR will try to make
a connection indefinitely. If the connection closes, it will not make
another connection unless the signal is asserted again.
Modem Emulation
—A connection is attempted when triggered by
modem emulation AT commands.
Note:
For the “any character” or “specific character” modes, the XPort AR
waits and retries the connection. Once it makes a connection and
disconnects, it cannot reconnect until it sees “any character” or the “start
character” again (depending on the configured setting).
Local Port
Enter the port for use as the local port. A random port is selected by default.
Once you have configured a number, click the Random link in the Current
Configuration to switch back to random.
Host
Click
<None>
in the Host field to configure the Host parameters and enter the
following fields:
Address
—Enter the remote Host Address as an IP address or DNS
name. It designates the address of the remote host to connect to.
Port
—Enter the port for use as the Host Port. It designates the port on
the remote host to connect to.
Protocol
—Select the protocol type. Your choices are: SSH, SSL, TCP,
TCP AES, Telnet, UDP, and UDP AES. The default protocol is TCP.
When TCP is enabled, probes are sent to the other end of the
connection to ensure that the connection is still valid. Default is 45000
milliseconds. Enter zero to disable and blank the value to restore the
default.
The following fields are available:
-
For SSH, the
SSH Username
field displays. Enter a username.
This is required. The XPort AR is the client and the SSH client
username must be configured on the remote SSH server before
using the XPort AR.
Note:
If security is a concern, it is highly recommended that SSH be used.
When using SSH, both the SSH Server Host Keys and SSH Server
Authorized Users must be configured.
-
For SSL, there are no additional fields.
-
For TCP AES, enter the TCP Keep Alive value in milliseconds, and
AES Encrypt/Decrypt Key. The AES Encrypt/Decrypt key field
displays the presence of key. When setting AES encryption, both
the encrypt key and the decrypt key must be specified. Both of the
keys may be set to the same value.
-
For Telnet, enter the TCP Keep Alive value in milliseconds.
-
For UDP, there are no additional fields.
-
For UDP AES, enter the encrypt/decrypt keys.
Note:
For UDP, the XPort AR accepts packets from any device on the
network. It send packets to the last device that sent it packets.
Table 6-7
Tunnel 1 Connect Mode Fields (continued)
Field
Description
