OK, first of all, I'm no expert, I have some training in networking and very little in cyber security.
I live in a small community and there's is an ISP providing service to the whole community. Today I got an old ip camera and tried to hook it up, I couldn't figure out it's ip address and scanned my network (let's say 10.0.0.0/24) for ip addresses and it still wouldn't show up, so I scanned what I know was it's last subnet, let's say 10.0.10.0/24 and found out there as a host at every address, one was even an HP printer from a family the other side of the community which I was able to gain access simply by going to it's address.
When I go to my router's web ui I can see that it's gateway is 10.0.8.1 and a 255.255.252.0 subnet.
So my question is, is this all normal? Or should I contact someone about it?