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IP Subnet Calculator A subnet is division of an IP network (internet protocol suite), where an IP network is a set of communications protocols used on the Internet and other similar networks. It is commonly known as TCP/IP (Transmission Control Protocol/Internet Protocol). Internet Protocol (IPv4) Subnet Chart Aug 16, 2003 Subnet Mask Cheat Sheet - kthx.at 122 rows Guide to Subnet Mask (Subnetting) & IP Subnet Calculator

Subnet Mask Cheat Sheet - kthx.at

Subnet Masks - CNES 12 rows

CIDR, Subnet Masks, and Usable IP Addresses Quick

Subnet Calculator is used to divide an IP network into subnetworks by calculating network address, subnet mask, broadcast address and host IP address range.Please use the form below to enter an IP address and Subnet Mask, and we'll provide you with necessary information you'll need. - 204.15.5.96 is a network address, the first in the subnet . These IP's can't be assigned to a host, as those IP's represent the network itself, or everyone in the subnet (broadcast address), this it cannot uniquely identify a host. You're going wrong with the subnets. For example: NetB: 204.15.5.18 - 204.15.5.47 255.255.255.224 Looking at the subnet mask we see that the highest 5 octets are full, meaning we have a range of 7 one will be the network address, 5 usable addresses and the last will be the broadcast address. A subnet mask of 255.255.255.224 has an increment of 32 (the binary form of the last octet is 1110 0000) so we can’t use numbers which are the multiples of 32 because they are sub-network addresses. Besides, we can’t use broadcast addresses of these sub-networks (the broadcast address of the previous subnet is calculated by subtracting 1 Addresses Hosts Netmask Amount of a Class C /30: 4: 2: 255.255.255.252: 1/64 /29: 8: 6: 255.255.255.248: 1/32 /28: 16: 14: 255.255.255.240: 1/16 /27: 32: 30: 255.255 Subnet Mask Cheat Sheet If you are a network admin like us, this is a little sheet that you will continually need access to. We hope you find it as helpful as we do.