TCP/IP Driver Special Options Reference
- Last UpdatedJul 18, 2023
- 1 minute read
Special Options (in the properties for a port) are space separated and start with the dash character (—) immediately followed by the option characters. You can use the following special options for TCP/IP:
|
Special option character |
Description |
|---|---|
|
—A |
Allows the TCPIP driver to be used from Cicode. |
|
—Ia.b.c.d |
Defines remote IP address to connect to. |
|
—K |
Sets socket SO_KEEPALIVE flag. |
|
—LIa.b.c.d |
Defines local IP address. |
|
—LPn |
Defines local PORT. |
|
—Ma.b.c.d |
Defines multicast IP address. IP address joins a multicast group listening for UDP multicast packets. For the parameter to work configure the -LP local port switch, so the driver selects the correct port on the multicast IP to listen on. This option can be set using the [TCPIP]PortName.MulticastAddress parameter. See Debugging a TCP/IP driver. |
|
—Pn |
Defines remote PORT to connect to. |
|
—RC |
Activates the reconnection retries on reception of FD_CLOSE event. FD_CLOSE is only received if the Keepalive option is activated. -RC can be useful where the TCP/IP driver is notified of the connection close. For a more comprehensive handling, the -k option is needed. |
|
—T |
Sets this port for TCP (stream) operation. |
|
—U |
Sets this port for UDP (datagram) operation. |
Where:
a.b.c.d = standard IP address in dot notation using decimal numbers 0- 255. (Avoid using a leading 0 when adding an IP address).
n = decimal value for the port ID for the necessary service.