ADDENDUM: If you need to generate reverse DNS records for IP addresses, DO NOT simply paste in the entire IPv4 address as the hostname, such as in this example;

❌ 198.51.100.1.net.example
❌ 198.51.100.2.net.example

If you absolutely need to use dots, like for delegation within a large enterprise or to clients, reverse the string instead;

✅ 1.100.51.198.rev.net.example
✅ 2.100.51.198.rev.net.example

Most to least specific, always.

In the vast majority of cases, keep it simple, with something like this;

✅ ip-198-51-100-1.dhcp.net.example
✅ ip-198-51-100-2.dhcp.net.example

Can be delegated if needs be, and is clearly separate.