Destination IP: packet's destination IP address 
Note: "Source Port" ,"Destination Port" ,"Source IP" ,"Destination IP" could not be 
all empty ,you have to input at least one of these four parameters. 
 
Serial Applications 
The modems serial port is by default a “console” for the modem kernel. By enabling the serial 
application, you can assign this port to an application such as UDP to serial gateway, Modbus TCP 
device etc. 
 
Serial Applications: enable or disable serial app  
Baud Rate: serial port speed 
Databit: number of data bits in serial frame (5,6,7 or 8) 
Stopbit: number of stop bits in serial frame (1 or 2) 
Parity: Parity bit to use (none, odd or even parity) 
Flow Control: select none, hardware (RTC/CTS) or software (XON/XOFF)