Connections to an unknown port
I'm getting email logs from my router tellling me that a source on the internet is trying to connect to my router on port 45399. Does anyone know what this port is and what it does? Been searching the net and cannot find the answer?
The source IP and port address changes all the time but on my side I've picked destination port numbers 45399, 61306
UDP Packet - Source:XXX.XXX.XXX.227,50250 Destination:XXX.XXX.XXX.66,45399 - [DOS]
TCP Packet - Source:XXX.XXX.XXX.132,6757 Destination:XXX.XXX.XXX.66,45399 - [DOS]
What does this mean and how do I stop it? Is it media streaming happening via you tube perhaps?
Thanks for help