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IP addressing

I have very little knowledge of IP addressing and I would appreciate some help here

I have an assigned range of 75.137.45.144/28. How many machines can I connect to it and can I make it into two equal sized subnets? How? Is there a Math formula to figure this stuff out??

mccarl

You can have up to 14 devices in this range. For your info the subnet mask would be 255.255.255.240

If you want two subnets, then they could have only 6 devices each. They would have ranges of 75.137.45.144/29 and 75.137.45.152/29 and the subnet mask for these two subnets would be 255.255.255.248

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Qlemo

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rfc1180

>I have an assigned range of 75.137.45.144/28. How many machines can I connect to it and can I make it into two equal sized subnets?

This depends on whether or not you are assigning this range to an interface; if all you are doing is defining static one to one NAT, then you can use all 16 addresses; if you are however, assigning this to a physical interface on a firewall/router, you will then need 1 IP address for the physical interface then you will have 13 usable addresses for your hosts on this LAN.

Billy

dawber39

ASKER

I appreciate the efforts of all of you - but Qlemo gave me a better explanation of how - thank you all

dawber39

ASKER

Excellent

mccarl

If you "appreciate the efforts of all" you should really be sharing the points... but whatever!

rfc1180

too bad you can't block authors!

dawber39

ASKER

Wow - all I did was ask how - and Qlemo was quite definitive in his explanation - I am sorry if I hurt your feelings