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Setting up an IP scheme

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by ulikeryche

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I am working on a project to help expand a companies infrastructure by adding more than 50 pc's to their current network of 200. My plan is to propose a network that can accomodate up to 300 pc's (future growth).

My question is how do I come up with an IP addressing scheme? It should be noted that I do not plan on using any internal routers, just switches and a firewall on the client side of the internet.

Do I use a class B or C scheme? I'm thinking B.

Thanks :)

8 replies

by ehusam

you can use class b with class less network mask your network will be 256+256-2 =510 ip address's

your mask should be 255.255.252.0

by ulikeryche

Poster rated this answer.
Thanks for the help! What would the nodes on the network then have for an IP address? What would 1 example be?

by singh

Hi
The way the calcs work i would suggest the follwing ip scheme it would give you 512 nodes and you can furher subnet if needed as well
IP 172.30.1.X
Subnet Mask : 255.255.254.0 ( /23)

Have fun

by ulikeryche

As you could probably tell, I am quite new at this. I'm currently finishing up my schooling to become a network professional and subnetting along with IP numbering schemes are quite tricky to me at this point.

Thanks to you all for the help!

by ctmoore1998

If you use 10.0.0.0 255.255.252.0 this will give you a network of up to 1022 hosts on the subnet.
so you can address 10.0.0.1 through 10.0.3.254
10.0.0.0 255.255.254.0 will give you 510. so you can address 10.0.0.1 through 10.0.1.254 If you wan to use the common 192.168.0.0 instead of 10.0.0.0 then just sub the first 3 octets. ie 192.168.0.0 255.255.254.0 will let you have 192.168.0.1 thru 192.168.1.254 or 510 hosts. I suggest that you plan on the lower 25 and Upper 75 IPs to be static. the lower IP's for servers and the upper ips for switches routers and printers. And then you still have 410 ips for workstations if you employ DHCP.

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