What is my Port number..???????

it seems the port number is set by the application that runs on the PC. A port number is a 16-bit unsigned integer, thus ranging from 0 to 65535 [http://en.wikipedia.org/wiki/Port_number#Technical_details] it seems there could be various applications (running on different ports) one IP address ... SNMP Protocol Overview The Simple Network Management Protocol (SNMP) is essentially a request-reply protocol running over UDP (ports 161 and 162), though TCP operation is possible. SNMP is an asymmetric protocol, operating between a management station (smart) and an agent (dumb). The agent is the device being managed - all its software has to do is implement a few simple packet types and a generic get-or-set function on its MIB variables. The management station presents the user interface. Simple management stations can be built with UNIX command-line utilities. More complex (and expensive) ones collect MIB data over time and use GUIs to draw network maps. [http://www.lincoln.edu/math/rmyrick/ComputerNetworks/InetReference/108.htm] I would wildly guess the port number cold be 161 or 162 ...