Subnetting Question..

adeetee

I am confused... specially for these two problems..

1) 200.1.1.0, break into 40 networks

&
2) 170.50.0.0, break into 1000 networks

Help please!

dynamik

1) Class C Network, so 11111111.11111111.11111111.00000000 is what you have to work with. You'll need to allocate 6 bits (that'll give you 64 networks - 5 provides 32 which is too small), so you'll end up with 11111111.11111111.11111111.11111100, or 255.255.255.252 for your subnet mask.

1) Class B Network, so 11111111.11111111.00000000.00000000 is what you have to work with. You'll need to allocate 10 bits (that'll give you 1024 networks - 9 provides 512 which is too small), so you'll end up with 11111111.11111111.11111111.11000000, or 255.255.255.192 for your subnet mask.

adeetee

dynamik wrote: »

1) Class C Network, so 11111111.11111111.11111111.00000000 is what you have to work with. You'll need to allocate 6 bits (that'll give you 64 networks - 5 provides 32 which is too small), so you'll end up with 11111111.11111111.11111111.11111100, or 255.255.255.252 for your subnet mask.

1) Class B Network, so 11111111.11111111.00000000.00000000 is what you have to work with. You'll need to allocate 10 bits (that'll give you 1024 networks - 9 provides 512 which is too small), so you'll end up with 11111111.11111111.11111111.11000000, or 255.255.255.192 for your subnet mask.

Thank you for such a quick reply.. i was going out of my mind figuring out things.. now I have to vent..

I had solved all the subnetting problems right... but for video 20 questions on cbt nuggets videos.. I was consulting video 19 answers from the cbt lab answer pdf... silly me.. and I was going bonkers...
I feel so much better now.... and stupid at the same time.. haha