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What is a class B subnet mask?
Class B networks use a default subnet mask of 255.255. 0.0 and have 128-191 as their first octet. Its first octet is 172, which is between 128 and 191, inclusive. Class C networks use a default subnet mask of 255.255. 255.0 and have 192-223 as their first octet.
How many addresses are there in a class B subnet?
Class B Address x.x. The default subnet mask for Class B is 255.255. x.x. Class B has 16384 (214) Network addresses and 65534 (216-2) Host addresses.
What range of network addresses is considered a Class B?
128-191
Designing Your IP Addressing Scheme
| Class | Range | Network Address |
|---|---|---|
| A | 0-127 | xxx |
| B | 128-191 | xxx . xxx |
| C | 192-223 | xxx . xxx . xxx |
What is the full subnet mask for address 172.16 5.10 28?
255.255.
What is the full subnet mask for address 172.16. 5.10/28? 255.255.
How do you subnet in Class B?
2-2=510 subnets. 2-2=126 hosts per subnet. For the third octet, the mask would be 256-255=1, 2, 3, 4, 5, 6, etc. For the fourth octet, the mask would be 256-128=128, which is one subnet if it is used….Subnetting a Class B network address.
| Subnet | 64.0 | 128.0 |
|---|---|---|
| broadcast | 127.255 | 191.255 |
How do you calculate the number of hosts in Class B?
With those two addresses always reserved, the total number of assignable hosts for a class B network is 216 – 2 = 65,534. The total number of networks a class address may have is calculated by subtracting the number of bits in the subnet mask from the number of bits used to determine which class of network it is.
What class is a 192.168 IP address?
Class C
Class B: 172.16. 0.0 to 172.31. 255.255. Class C: 192.168.
What is a Class B IP address?
Class B IP addresses are used for medium and large-sized networks in enterprises and organizations. They support up to 65,000 hosts on 16,000 individual networks. Class C addresses are most common and used in small business and home networks. These support up to 256 hosts on each of 2 million networks.
How do you subnet a Class B?
When subnetting in the third octet, you need to add the fourth octet. For example, on the 255.255. 192.0 mask, the subnetting will be done in the third octet. To create a valid subnet, you must add the fourth octet of all 0s and all 1s for the network and broadcast address (0 for all 0s and 255 for all 1s).
What is class B private address?
Class B: 172.16. 0.0 to 172.31. 255.255.
How many IP addresses in a Class B subnet?
Class B IP addresses range from 128.0.0.0 to 191.255.255.255, with a default subnet mask of 255.255.0.0 (or /16 in CIDR). Class B addressing can have 16,384 (2 14 ) network addresses and 65,534 (2 16 ) usable addresses per network.
Which is better a Class B network address or a Class C network address?
Class C network addresses only have eight bits to manipulate into subnets. However, a Class B has 16 bits to play with. This will allow more subnets with more hosts per subnet than a Class C network ever could. There are quite a few more masks we can use with a Class B network address than we can with a Class C network address.
Which is the subnet mask of 192.168.0.101?
Another way to express this is with a network ID, which is just the network portion of the IP address. So the network ID of the address 192.168.0.101 with a subnet mask of 255.255.255.0 is 192.168.0.0. And it’s the same for the other devices on the local network ( 192.168.0.102, 192.168.0.103, and so on).
How are IP addresses broken down into subnets?
Because the shortage was recognized years ago, developers came up with a way to split up an IP address into smaller networks called subnets. This process, called subnetting, uses the host section of the IP address to break it down into those smaller networks or subnets. Generally, an IP address is made up of network bits and host bits: Source: IPv4