Lantronix X300 Series X300 Series User Guide Rev B - Page 196

17: Tunnel Host Field Port Protocol Secure Protocols TCP Keep Alive TCP Keep Alive Interval TCP Keep Alive Probes TCP User Timeout AES Encrypt Key AES Encrypt Key Type AES Decrypt Key AES Decrypt Key Type Initial Send Initial Send Type Credentials Validate Certificate Description Enter the TCP or UDP port number on the target host for the connection. Select the desired security protocol.  SSL  TCP  TCP AES  Telnet  UDP  UDP AES Configure the remaining protocol fields as determined by the protocol selection. When using SSL, select the secure protocols and the SSL credential. Protocol options are:  SSL3  TLS1.0  TLS1.1 (default selected)  TLS1.2 (default selected)  TLS1.3 (default selected) Enter the time, in milliseconds, the gateway waits during a silent TCP connection before the first Keep Alive probe is sent to the remote host in order to keep the TCP connection up during idle transfer periods. Set to 0 to disable TCP Keep Alive, and blank the field to restore the default. Enter the time, in milliseconds, to wait between Keep Alive probes in order to keep the TCP connection up during idle transfer periods. Blank the display field to restore the default. Enter the number of TCP Keep Alive probes to send before closing the connection if no response is received. The probes are sent after the initial TCP Keep Alive probe is sent. Valid values are between 1 and 16. Blank the field to restore the default. Specify the amount of time the TCP segments will be retransmitted before the connection is closed. Enter the AES Encrypt Key. This configuration field becomes available when the TCP AES or UDP AES protocol is selected. Select Text or Hexadecimal to indicate format Enter the AES Decrypt Key. This configuration field becomes available when the TCP AES or UDP AES protocol is selected. Select Text or Hexadecimal to indicate format Enter the Initial Send character to be sent out the network upon connection establishment before any data from the Line. It may contain one or more Directives of the form %. This configuration field becomes available when the TCP, UDP, or UDP AES protocol is selected. Select Text or Hexadecimal to indicate format. If SSL is the selected protocol, select an existing credential from the drop-down list. Go to SSL > Credentials to create, view, or edit SSL credentials. See Credentials on page 187. Select to enable validation of the SSL certificate on the server. This configuration field becomes available when the SSL protocol is selected. Connecting Multiple Hosts X300 Series IoT Cellular Gateway User Guide 196