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Calculating Subnet Mask

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by pctech26 2 views

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How do I calculate the subnet mask for my network? Once I have the subnet mask information, how do I implement it on a Windows NT server which is also our DHCP Server?

I used an online subnet mask calculator, but I am not sure if I did it correctly.

Background Info:
-Class C Network
-The first three numbers are the same for all computers and start with 10.10.10.***
-One Windows NT Server which is also our DHCP server.

If you need any other information to help, please ask.

1 reply

by joseph moore

So, you have been assigned 10.10.10.0/24 address space for your DHCP server, its DHCP pool, and the NT server. That is correct?
Ok, then if you only have 10.10.10.0/24 address, then your subnet mask is 255.255.255.0

Use that subnet mask for the NT box, and the DHCP pool should pick that up once the NT box is set up correctly.

hope this helps

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