def METHOD_NAME(self, data):
    if self.local:
        return True
    if len(data) < (self.consumed() + self.addrSize * 2 + self.PORT_SIZE * 2):
        return False
    self.source = self.getAddr(data)
    self.destination = self.getAddr(data)
    self.sourcePort = self.getPort(data)
    self.destinationPort = self.getPort(data)
    return True