Subneting my home network

  THE SAINT059 23:45 21 Feb 2009

I have been reading about subneting and would like to do it at home. Here is what I have so far. I Have A IP Address of subnet

11111111.11111111.11111111.11111111 I Want 20 IP Address.

So my subnetmask is


What would be my IP address be and default gateway


  brundle 00:06 22 Feb 2009

248 = subnets going up in 8s. is the network number, 73-79 is the range, default gateway ought to be 73, though that could be any of the allowable IP addresses in the range according to your preference or router config.

  brundle 00:07 22 Feb 2009

If you want 20 IP addresses in each range your subnet mask will be

  brundle 01:12 22 Feb 2009 is a broadcast address given your original subnet mask, and as such not available for use.>72

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