Lantronix SGX 5150 User Guide - Page 117

9: Administration Tunnel Connect Mode Settings (continued) Block Network Email on Connect Email of Disconnect Description Set whether Block Network is enabled for debugging purposes. Choices are:  Enabled = If Enabled, incoming characters from the network will not be forwarded to the Serial Line. Instead, they will be buffered and will eventually flow off the network side.  Disabled = this is the default setting; incoming characters from the network are sent on into the Serial Line. Any buffered characters are sent first. Select an email profile number to which an email notification will be sent upon the establishment of an accept mode tunnel. Select an email profile number to which an email notification will be sent upon the disconnection of an accept mode tunnel. Table 9-46 Host Settings Host Field Address Port Protocol SSH Username Validate Certificate TCP Keep Alive TCP User Timeout AES Encrypt Key AES Decrypt Key Initial Send Description Enter the address for the remote host connection. Either a DNS address or an IP address maybe provided. Designate the TCP or UDP port on the remote host for connection. Select the desired security protocol. SSH is recommended for circumstances with high security concerns. When using SSH, both the SSH server host keys and the SSH server authorized users must be configured. Enter a Username. This configuration field becomes available when the SSH Protocol is selected. Select to enable or disable. This configuration field becomes available when the SSL protocol is selected. Specify the amount of time to wait before 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 and blank the display 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 and select Text or Hexadecimal to indicate format. This configuration field becomes available when the TCP AES or UDP AES protocol is selected. Enter the AES Decrypt Key and select Text or Hexadecimal to indicate format. This configuration field becomes available when the TCP AES or UDP AES protocol is selected. Enter the Initial Send character and select either Text or Binary format. This configuration field becomes available when the SSH, TCP, UDP, or UDP AES protocol is selected. Notes:  If the keep alive time expires, the user timeout is expired, and there are probes in flight, the connection will be reset. For this reason, it is recommended that if keep alive is used in conjunction with the user timeout, the keep alive timeouts be larger than the user timeout. If it is smaller, what will typically be seen is that the initial probe will be sent, then at the interval where the next probe would normally be sent, the connection will be reset, with no additional probes sent. Also note that in these cases: if the keep SGX 5150 IoT Device Gateway User Guide 117