Due to MAC address that is used from an ethernet device you could have opportunity to determine some vendor information based on that.
For that purpose I am indicating a web site (there are plenty similar on the web) that can be used for this search purpose.
https://www.adminsub.net/mac-address-finder
The same website has a simple form to calculate, from IP and subnet, all other useful network information:
http://www.adminsub.net/ipv4-subnet-calculator
If finally you need to understand which is the service associated to a port number you can review this link too:
https://www.adminsub.net/tcp-udp-port-finder
