guy the netmask is depending on the on ip address? and you cant create the netmask
network mask is dependent on the subnet. You determine how many hosts you want on each subnet and the mask is based on that. As an example. If I use the subnet mask 255.255.255.0 that gives me 254 addresses that I can use on that subnet.
Hopefully, that answers your question. If not, please post a new question clarifying what you need assistance with.
Hey Nkosi. Subnets always tricked me in the beginning. If you do a quick search for "Subnet calculator" there are plenty of resources that are super helpful. Ping us if you have questions!