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    Subnetting Very Quickly


      Hey guys!!! I need help working with my speed of subnetting. I understand subnetting very well, but I just can't do subnetting fast enough in my head, I meant VERY FAST. I use the number 256 and subtract it from any subnet mask to get the magic number, but I can't seem to determine the network address and broadcast address FAST enough. I also tired to remember the multiples of 64, 32, 16, 8, 4, and 2, but I can't seem to get it burn inside my head. I write them as I say it and I still can't manage to remember them at all. I was wondering if anyone has any suggestions.

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