// Calculate number of bytes before the request.
// That portion of the message will go as it is

// Copy the portion of previous message, that is before route request
// option.

// Header Payload size should be incremented by 4 for allocating
// a new node in path.

// copy previous nodes route request part

// OptDataLen in Dsr Route Request should be changed

// Copy the path fields

// Copy other contents of Data

// Update statistical variable for number of request relayed

// Done with packet copying

// Copy the path fields