Subnet Mask Cheat Sheet - kthx.at
IP subnetting made easy - TechRepublic Mar 03, 2009 Subnetting Chart - Google Sheets Subnet Mask: Network Bits: Host Bits: Subnets: Host/Subnet: Mask: 128: 192: 224: 240: 248: 252: 254: 255
The subnet calculator lets you enter a subnet range (CIDR) and see IP address information about that range You can type your range directly in CIDR notation, or use the optional Mask pull-down: 74.125.227.0/29; 74.125.227.0, then select Optional Mask from dropdown; This is a useful feature for service providers and network operator who
Mar 03, 2009 · The particular binary subnet mask translates directly to base-256 form as 255.255.248.0. The "mask" in subnet mask. The subnet mask not only determines the size of a subnet, but it can also help Nov 12, 2007 · A 255.255.248.0 subnet means that the first 21 bits of the address are reserved to identify the subnet leaving 11 bits for hosts. The calculation for figuring out how many hosts you can have would be 2 (number of possibilities for a bit, 1 or 0) to the 11th power (11 being the number of host bits allowed by the subnet mask) minus 2 (the minus 2 removes the reserved addresses for the subnet and Subnet Mask: Network Bits: Host Bits: Subnets: Host/Subnet: Mask: 128: 192: 224: 240: 248: 252: 254: 255
How many usable subnets with subnet mask 255.255.128.0 with a class B IP address? The rule is I can't use the first and last subnets. So with a class B IP address and a subnet mask of 255.255.128.0, how many usable subnets will it give me? 255.255.128.0 is the same as 11111111.11111111.10000000.00
255.255.255.0 Subnet Mask for IP Networks - Lifewire Mar 23, 2020 Subnet IP Calculator IP/mask Up to the last IP in the subnet Mask Address count Class; a.b.c.d/32 +0.0.0.0: 255.255.255.255: 1: 1 / 256 C: a.b.c.d/31 +0.0.0.1: 255.255.255.254: 2: 1/128 C