Whether you need an IP subnetting cheat sheet or you're preparing for a Cisco Certified Network Associate, or CCNA, exam, this article shows you how to calculate a subnet mask, break down IP address ...
A subnet mask is a number that specifies which parts of an IP address represent the host and network portions of the address. These masks are 32 bits in IPv4 networks and 128 bits in IPv6 networks. A ...
OK say you have a range of IP addresses, 66.135.192.0 - 66.135.223.255. How would you find out the hostmask to use to encompass all of these addresses? i.e. "Allow 66.135.192.0 / 255.255.0.0 " 255.255 ...
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