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Finding out a network address with host ip and subnet?

post #1 of 2
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Okay, this is for my entry level networking class I am taking right now. I have actually really enjoyed the class so far and feel like I have been grasping the concepts with ease. As the name of the class implies, I can really see that it is a "entry" level class.

Think I just ran into a brick wall though. We have been working on VLSM (variable length subneting mask). While it is one of the more tricky things to understand so far, I didn't think it phased me too much. I thought a grasped the concept.

But then when going over questions, I was basically asked to work in reverse order which actually really has me confused. Here is the question...

Find the network address of IP address 12.251.88.99; it has a subnet mask of 255.255.192.0

Could somebody help me out? A answer is nice but a explanation is even better thumb.gif

Thanks!

Edit
Okay so I figured out binaryAND was a concept I was missing and they key here. It looks like it makes the network address 12.251.64.0 Sound right?
Edited by Outlawed - 10/7/12 at 1:37pm
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post #2 of 2
Yep, 12.251.64.0 is correct smile.gif
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