|Port scans are used to see what, if any, services are available at specific IP's. Mostly they're used by network people, like myself, to troubleshoot issues. |
However, hackers like to use them on the internet to look for servers with open ports that they can then attempt to hack.
From what you post, it looks like someone on your LAN is port scanning. Maybe there's a legit reason why they're doing it but to my way of thinking, if they're not a network technician (analyst/support etc etc) and you're not in a work environment, then I'd be concerned as to why they're doing it.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.