Network Calculator will calculate what subnet mask to use to get the required number of networks or nodes. You'll need to enter the network portion of a TCP/IP address and the required number of sub-networks or nodes. When you have entered these values,Tab on 'Calculate' and it will list the number of sub-networks, the number of nodes per sub-network and the subnet mask to use. 2 ~$ J4 P. k) f* X( \. F6 ^4 ]% G6 V2 z6 n- r+ V1 E' r8 h
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