What kind of packets does the TP-Link TL-WR842ND router send in the local network?

Question

Computer networks

There is a router in the corporate network, IP address 192.168.0.94. I decided to use Wireshark on the server to see what the network traffic of the router is. I must say right away that the network is designed so that all computers access a server that has access to the Internet (two network cards, NAT, DNS, that's all). Wireshark ran at night, looked at the result in the morning and found about 15,000 packets sent over UDP, 75 bytes in size, from port 2049 (NFS) to port 3240 (trimotion). I don’t understand at this moment, what kind of traffic is this? I studied in the web interface what is enabled on the router, I can only sin on the "Security" section, all sorts of traffic protection from ICMP attacks, a firewall, etc. are included there. But, as I understand for myself, all this should work as a defense of oneself, and not as a message sent by the entire broadcast channel of a certain packet. More details can be seen in the screenshot.. In the package, I recognized the name of the router model + firmware version (WR842ND v1) and its network name (301_cabinet). I don’t even know why you need to tell everyone this in a row?

Answer 1

Googling result: "3240:UDP" = 3240:UDP:*:Enabled:TP-Link USB Print ... . Disable this feature - spam will stop, probably.