Calculate broadcast and network address from IP address and netmask
Enter your IP address:
Enter your subnet mask:
Results:  
Broadcast Address:
Network Address:
Calculate a netmask from the mask length
Enter your netmask length:

Results:
Calculate the mask length from the netmask

Enter your netmask:
Results:
Determine if a host is on the same network with a second host
Enter your IP address:
Enter your subnet mask:
Enter the second host's IP address:
The systems are:

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Last updated on Thursday, 13-Mar-2003 13:32:40 PST • Visit the Treachery website.