The CIDR number comes from the number of 1's in the subnet mask when converted to binary. The common subnet mask 255.255.255.0 is 11111111.11111111.11111111.00000000 in binary. This adds up to 24 1's, or /24 (pronounced 'slash twenty four').

Looking at the default subnet mask for a class C network, you would receive: 255.255.255.0 with no subnets and a maximum number of clients of 254. Its actually giving me a subnet mask of 255.255.248.0 and I dont see why. I've always had my XBOX 360's static IP settings set to a 255.255.255.0 subnet and have had a Open NAT Type. But I recently started up COD: Black Ops and saw it at Moderate. Thats why I decided to check on my router settings and found out my subnet was different. Jan 15, 2020 · By comparing the “turned on” bits (i.e. 1s) in the subnet mask to an IP address, a network device can determine what network a particular IP address belongs to. For example, the 172.17.250.145 IP address with a subnet mask of 255.255.248.0 belongs to the 172.17.248.0 255.255.248.0 subnet: A Note about CIDR About IPv4 Subnet Calculator Enter IP address and netmask (decimal separated by dots (e.g. 255.255.255.0), CIDR (e.g. 29) or a Cisco wildcard (e.g. 0.0.0.31) and the IPv4 subnet calculator will calculate the broadcast, network,

Jun 10, 2020 · The Subnet mask determines how the IPv4 address is split. Th example above used a class A IP address we can do the same with a class B address. Net.N et.Node.Node —->Net.Net. Subnet. Node Using Mask 255.255.255.0. Subnetting on a byte boundary is the easiest to do and understand but we can also subnet on non byte boundaries. Worked Examples

Aug 10, 2005 · Class B Subnet Effective Effective Number of Subnet Bits Mask Subnets Hosts Mask Bits ----- ----- ----- ----- ----- 1 255.255.128.0 2 32766 /17 2 255.255.192.0 4 16382 /18 3 255.255.224.0 8 8190 /19 4 255.255.240.0 16 4094 /20 5 255.255.248.0 32 2046 /21 6 255.255.252.0 64 1022 /22 7 255.255.254.0 128 510 /23 8 255.255.255.0 256 254 /24 9 255 Enter the maximum number of valid subnets and usable hosts per subnet that you can get from the network 172.21.0.0 255.255.248.0. Solution. Hence, the IP Address starts from 172 it indicates it is a Class B Address. and in Class B Address 16 bits are reserved for the network and 16 bits are reserved for the host.

Dec 19, 2019 · Subnet Mask -- A 32-bit number used to distinguish the network and host portions of an IP address. Subnet or Subnetwork -- A smaller network created by dividing a larger network into equal parts. TCP/IP -- Used broadly, the set of protocols, standards and utilities commonly used on the Internet and large networks.

Jan 15, 2020 · By comparing the “turned on” bits (i.e. 1s) in the subnet mask to an IP address, a network device can determine what network a particular IP address belongs to. For example, the 172.17.250.145 IP address with a subnet mask of 255.255.248.0 belongs to the 172.17.248.0 255.255.248.0 subnet: A Note about CIDR