8: Line and Tunnel Settings
EDS1100/2100 Device Server User Guide
59
Table 8-16 Tunnel Connect Mode
Tunnel – Connect Mode
Settings
Description
Mode
Select the method to be used to attempt a connection to a remote host or device.
Choices are:
Disable
= an outgoing connection is never attempted.
Always
= a connection is attempted until one is made. If the connection gets
disconnected, the EDS1100/2100 retries until it makes a connection. (default)
Any Character
= a connection is attempted when any character is read on the
serial line.
Start Character
= a connection is attempted when the start character for the
specific tunnel is read on the serial line.
Modem Control Asserted
= a connection is attempted as long as the Modem
Control pin (DSR) is asserted, until a connection is made.
Modem Emulation
= a connection is attempted when triggered by modem
emulation AT commands.
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
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.
Click
<None>
in the Host field to configure the Host parameters.
Address
= Enter the remote Host Address as an IP address or DNS name. It
designates the address of the remote host to connect to. Displays configured
IP address or DNS address.
Port
= Enter the port for use as the Host Port. It designates the port on the
remote host to connect to. Displays configured Port.
Protocol
= Select the protocol type for use with Connect Mode. The default
protocol is TCP. Additional fields may need to be completed depending on
protocol chosen for the host:
For
SSH
, also enter an
SSH Username
.
For
SSL
, also select Enabled or Disabled for
Validate Certificate
.
For
SSL
,
TCP
,
TCP AES
and
Telnet
, use the
TCP Keep Alive
field to
adjust the value.
For
TCP AES
, enter the
AES Encrypt
and
AES Decrypt Keys
. Both of
keys may be set to the same value.
For
UDP
, there are no additional fields to complete. In this mode, the
device accepts packets from any device on the network and sends packets
to the last device that sent it packets.
For
UDP AES
, enter the
AES Encrypt
and
AES Decrypt Keys
.
Validate Certificate
= select to enable or disable the certificate. Enabling
Validate Certificate requires the tunnel to verify the remote SSL server
certificate when making a connection. Disabling causes the tunnel to skip
verification of the remote SSL server certificate.
SSH Username
= Displays configured username, used only if SSH protocol is
selected.
TCP Keep Alive
= Default is 45000 milliseconds. Enter zero to disable and
blank the value to restore the default.
AES Encrypt/Decrypt Key
= Displays presence of key, used only if protocol
with AES is selected.
