The source routing is not a mandatory function. It is called only if it is selected by the originator of PDU. The source routing function allows a network entity to specify the path that a generated PDU shall take [2]. Then it will examine the route in the parameter value that defined by the network entity where the PDU constructed. The source route function will give the forward PDU function the **data** packet and the address of the next network entity where the packet needs to be transmitted. Source route analysis divided into complete source route analysis and partial source route analysis.