For example, the subnet mask of the Class A address with the partitioning scheme defined above is shown in this figure. The subnet mask is a set of 4 bytes, just like the Internet address. The subnet mask consists of high bits (1's) corresponding to the bit positions of the network an...
default subnet mask A subnet mask that is used on an Internet Protocol version 4 (IPv4) class-based network. The subnet mask for Class A is 255.0.0.0. The subnet mask for Class B is 255.255.0.0. The subnet mask for Class C is 255.255.255.0....
The Class B subnet mask tells you the first 16 bits of the IP address represent the network portion of the address. The remaining 16 bits represent the host address within the network. If a host has the IP address 172.20.33.33, the network portion of the address would be 172.20.0.0. The...
Class Anetworks use an IP address with 0 to 127 as the first octet, and a default subnet mask of 255.0.0.0. These are typically some of the largest networks because the subnet mask allows for three octets worth of host addresses (and only one octet of network address). ...
The subnet mask for a particular IP address is actually used by the router to resolve which part of the IP address is providing the network address and which part of the address is providing host address
A common example of a subnet mask for class C IP addresses is 255.255.255.0, the default subnet mask for many computers and network routers. When applied to subnet, a subnet mask shows the routing prefix.Related information See our netmask definition for a full explanation and examples. How ...
smaller logical groups. For example a class-A network can have 16 million addresses. It’s not a good idea to have traffic for 16 million computers traveling across theentirenetwork. That’s where “subnetting” and the subnet mask comes in. The internet ...
Class C 192.168.0.0 - 192.168.255.255 You are trying to address 256 networks in the third octet, no need to borrow bits from this octet for addressing. You stay with the 8 bits of the first octet and 8 bits from the second octet => 16 bit mask. TL's explains it far better than ...
Variable Length Subnet Mask (VLSM) is asubnet-- a segmented piece of a larger network -- design strategy where all subnet masks can have varying sizes. This process of "subnetting subnets" enablesnetwork engineersto use multiple masks for different subnets of a single class A, B or C networ...