Quick Answer: How Do You Find The Maximum Number Of Usable Subnets?

What does 29 mean in IP address?

/29 represents 29 of the 32 bits of the address are the netmask hence only 3 bits are available to distinguish the computers.

However, you always lose 2 addresses from the block for broadcast and loopback, so the result is: 2^(32–29) — 2 = 2³ — 2 = 8–2 = 6..

What does it mean 192.168 0.0 24?

192.168.0.0 Refers to the IP adress /24 refers to the subnet. / 24 subnet is 255.255.255.0. 192.168.0.0/24 is common for home networks.

What is a Class A subnet?

Class A networks use a default subnet mask of 255.0. 0.0 and have 0-127 as their first octet. The address 10.52. 36.11 is a class A address. Its first octet is 10, which is between 1 and 126, inclusive.

What is 16 subnet mask?

The last three octets of a Class A subnet mask are used to address hosts on a LAN; the 24 bits you can manipulate however you wish. … It saves you from typing, or pronouncing, the whole mask. For example, /8 means 255.0. 0.0, /16 is 255.255. 0.0, and /24 is 255.255.

How many subnets are in a 24?

Deducting 248 from 256 gives us 8 so the subnets are 0, 8, 16, 24, 32, 40, 48… 240,248.

What are the valid subnets?

Answer: The valid hosts are the numbers between the subnet number and the mask. For the 64 subnet, the valid host range is 64-126. For the 128 subnet, the valid host range is 129-190.

How many 20 subnets are in a 16?

Network BitsSubnet MaskNumber of Subnets/17255.255.128.02 (0)/18255.255.192.04 (2)/19255.255.224.08 (6)/20255.255.240.016 (14)11 more rows•Aug 16, 2003

How many hosts and subnets are possible?

Since the host portion has now lost two bits, the host portion will have only 22 bits (out of the last three octets). This means the complete Class A network is now divided (or subnetted) into four subnets, and each subnet can have 222 hosts (4194304).

How many subnets are in a 23?

Subnet Mask Cheat SheetAddressesNetmask/ 25128255.255.255.128/ 24256255.255.255.0/ 23512255.255.254.0/ 221024255.255.252.011 more rows

How many IP addresses are in a 32?

CIDR, Subnet Masks, and Usable IP Addresses Quick Reference Guide (Cheat Sheet)CIDRSubnet MaskTotal IPs/32255.255.255.2551/31255.255.255.2542/30255.255.255.2524/29255.255.255.248829 more rows•Aug 26, 2011

What is subnetting formula?

Let’s look at two formulas you need to know when subnetting a network. Networks formula. This formula is 2x, where x is the number of 1s added to the subnet mask from the previous or default subnet mask when converted to binary. For example, a subnet mask of 255.255.

What does IP address 192.168 1.15 29 mean?

What does the IP address 192.168. 1.15/29 represent? A broadcast address is the last address of any given network. This address cannot be assigned to a host, and it is used to communicate with all hosts on that network.

What is the maximum number of hosts per subnet?

Maximum number of hosts is 2^10-2 = 1022. 2 is subtracted for Number of hosts is also. The address with all bits as 1 is reserved as broadcast address and address with all host id bits as 0 is used as network address of subnet.

What does 24 mean in IP address?

This is called “slash notation”. There is a total of 32 bits in IPv4 address space. For example, if a network has the address “192.0. 2.0/24”, the number “24” refers to how many bits are contained in the network. From this, the number of bits left for address space can be calculated.

How many IP addresses are there?

4.3 billion IPv4In fact, there are today about 4.3 billion IPv4-type IP addresses throughout the entire world.

How do you solve subnet problems?

Solution-Subnet mask = 255.255.255.0.Number of bits borrowed from Host ID part = m.So, number of subnets possible = 2mNumber of bits available for Hosts = HID – m.So, number of hosts that can be configured = 2(HID – m) – 2.

How many subnets are in a class B?

This is exactly like subnetting a Class C network address, but the third octet is part of the subnet address. 256-255=1.0, 2.0, 3.0, etc. for the third octet. 256-192=64, 128, 192 for the fourth octet….Subnetting a Class B network address.Subnet64.0128.0broadcast127.255191.2552 more rows•May 29, 2001