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Accepted
Chris
Asked: 2013-04-18 06:11:44 +0800 CST

Why does Windoes not allow the subnet to be the same as the subnet mask? [duplicate]

  • 772

In Windows, I can configure a network adapter like this:

Ip Address: 192.0.0.1
Subnet Mask: 224.0.0.0

but not like this:

Ip Address: 192.0.0.1
Subnet Mask: 192.0.0.0

Why? Why can't the subnetwork be the same as the subnetwork mask?

networking

1 Answers

  1. Best Answer
    128.0.0.0/1 = Block of 128  = 1000 0000.0000 0000.0000 0000.0000 0000

1st Subnet - 0.0.0.1 --> 127.255.255.254
2nd Subnet - 128.0.0.1 --> 255.255.255.254

    So, your 1st subnet encompasses the loopback address (127.0.0.1) and your second subnet (the one you're trying to use encompasses the multicast and reserved ranges. My guess is Windows isn't going to allow you to do this because of potential problems. I'm not sure why it's even letting you use a /2. Regardless of the technical aspects... what the heck are you trying to accomplish by using a /1!!

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