Subnets and reserved addresses for a Class C network
Posted on 2003-11-05
Just a basic IPv4 question about subnets. Simply dealing with a Class C network, let's assume that we are on network segment 192.168.1.xxx. I understand that the IP address of 192.168.1.0 is reserved for representing the entire netowrk segment for devices such as routers. If we wanted to break our Class C LAN into 4 subnets using a subnet mask of 255.255.255.192, our subnets would then be broken down as follows:
Subnet 1: 192.168.1.0 - 192.168.1.63
Subnet 2: 192.168.1.64 - 192.168.1.127
Subnet 3: 192.168.1.128 - 192.168.1.191
Subnet 4: 192.168.1.192 - 192.168.1.255
I also understand that 192.168.1.255 is reserved for transmitting a signal to the entire segment. This is where my question lies: Is 192.168.1.255 used to transmit a signal to all computers on 192.168.1.xxx or does 192.168.1.63, 192.168.1.127, 192.168.1.191 become reserved for each subnet and are used to transmit to all computers on the corresponding subnet to which the belong? If that is true would we need a router attached to each subnet, or can each subnet access a single router on subnet 1, for example, on 192.168.1.1?
If I am way off with my defining of subnets as well please set me straight.
Thanks for your help!