I am looking on subnetting our colo class-C for security and performance reasons, here is our scenario.
One class-C address space, call it
123.123.123.0
subnet mask is
255.255.255.0
our providers gateway router is
123.123.123.1
Connected to our provider, we have a
48-port Cisco 3550 switch running 12.1.22-EA6 (ED) EMI IOS
at 123.123.123.3
All of our hosts are servers and will need to have public IPs from our class-C
We want to divide our network into the following IP address subnets:
One 64 IP address subnet
Four 8 IP address subnets
Four 4 IP address subnets
One 1 IP address subnets (for use with a private 192.168.0.0/24 IP network)
(rest left for expansion)
Im assuming we configure ports on the 3550 as NO SWITCHPORT ports and define them IP addresses of
123.123.123.4
123.123.123.5
123.123.123.6
123.123.123.7
.
.
.
im assuming each of our clients on the individual subnets will then use the corresponding IP as its
gateway, but:
-does our provider need to make any changes to the /24 mask they are now giving us?
-how do we set this all up in IOS on the 3550?
-what subnet masks do we give the clients?
-how do we ensure the subnets can talk IP to each if the need to? (routing)
-does any of this involve VLANs?