Digi TX40 User Manual page 289

Serial port
where value is any number of weeks, days, hours, minutes, or seconds, and takes the
format number{w|d|h|m|s}.
For example, to set idle_timeout to ten minutes, enter either 10m or 600s:
(config serial USB_port)> idle_timeout 600s
(config serial USB_port)
The default is 15m.
e. (Optional) Enable monitoring of CTS (Clear to Send) changes on this port:
(config serial USB_port)> monitor cts true
(config serial USB_port)
f. (Optional) Enable monitoring of DCD (Data Carrier Detect) changes on this port:
(config serial USB_port)> monitor dcd true
(config serial USB_port)
g. Configure TCP access to this port:
i. Set the connection type:
(config serial USB_port)> service tcp conn_type value
(config serial USB_port)>
where value is one of:
i. tcp: The TCP connection is unencrypted.
ii. tls: The TCP connection uses Transport Layer Security (TLS) encryption.
iii. tls_auth: The TCP connection uses TLS encryption with authentication.
ii. Enable TCP access:
(config serial USB_port)> service tcp enable true
(config serial USB_port)>
iii. Set the TCP port:
(config serial USB_port)> service tcp port port
(config serial USB_port)>
iv. (Optional) Configure the access control list to limit access to the TCP connection:
TX40 User Guide
To limit access to specified IPv4 addresses and networks:
n
(config serial USB_port)> add service tcp acl address end
value
(config serial USB_port)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the tcp port.
l
Repeat this step to list additional IP addresses or networks.
Add a USB serial port
289