C.7 tls tab – Campbell Scientific NL240 Wireless Network Link Interface User Manual

Page 66

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Appendix C. NL240 Settings

of the datalogger’s TCP server is uniquely identified by an IP address and a

port number. This entry is where the port number of the NL240’s TCP client is

set. The datalogger’s TCP server port must be set to communicate on this port

number.

If secure communications come in on the TLS Proxy Server Port Number, the

NL240 will attempt to open a TCP connection to the datalogger on the TLS

Proxy Forward Port Number. Also, regardless of this setting, the NL240 TLS

Proxy Server will always listen on the secure HTTP (HTTPS) port number

443. If a secure connection is established on this port, the NL240 will attempt

to communicate to the datalogger on the HTTP port 80.

Leave this setting at its default unless the datalogger is expecting

communications on a different port. (range 1..65535)

TLS Proxy Timeout

This setting, in units of seconds, will determine how fast the proxy server/client

sessions will time out if no activity is detected. Set to 0 for no time-out (not

recommended). (range 0..999)

C.7 TLS Tab

TLS Status (read only)

Specifies the current status of the TLS network stack.

If the status of the TLS stack is “Initialized”, the device will

automatically negotiate a secure TLS connection with DevConfig

if the Use TCP option is selected. The TLS Private Key, Private

Key Password, and TLS Certificate can only be edited/transmitted

over a secure DevConfig link (USB or TLS). These settings

cannot be edited over a standard TCP DevConfig link.

TLS Private Key Password

Specifies the password that is used to decrypt the TLS Private Key.

This setting can only be edited/transmitted if the DevConfig link

is considered secure (USB or TLS). If the TLS stack has been

initialized, the device will automatically negotiate a secure TLS

connection with DevConfig if the Use TCP option is selected.

TLS Private Key

Specifies the private key (in PEM format) for the encryption stack.

This setting can only be edited/transmitted if the DevConfig link

is considered secure (USB or TLS). If the TLS stack has been

initialized, the device will automatically negotiate a secure TLS

connection with DevConfig if the Use TCP option is selected.

NOTE

NOTE

NOTE

C-16

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