jskfan

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# IP Subnetting and Supernetting

In the case I have 192.168.25.0/24 and the request is about adding 10 subnets ,will the new mask be :

192.168.25.0/28 or ?

Thanks

192.168.25.0/28 or ?

Thanks

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ASKER CERTIFIED SOLUTION

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ASKER

I do not us subnetting often

where I get confused is where to add the bits when it come to subnetting and supernetting

ex: 192.168.0.0/24 ...if the request says add 20 subnets , then the closest is 2^5, which means you add 5 bits from the left

it will become 192.168.0.0/29 =192.168.0.0 255.255.255.248

I guess supernetting (reducing subnets in order to add more hosts) is not very common

where I get confused is where to add the bits when it come to subnetting and supernetting

ex: 192.168.0.0/24 ...if the request says add 20 subnets , then the closest is 2^5, which means you add 5 bits from the left

it will become 192.168.0.0/29 =192.168.0.0 255.255.255.248

I guess supernetting (reducing subnets in order to add more hosts) is not very common

ASKER

I will come back to this at later time

ASKER

I thought with 10 subnets, you can get 254 hosts by subnet .

Correct ?