CIDR Subnet mask # of usable IP addresses | /24 255.255.255.0 254 | /23 255.255.254.0 510 | /22 255.255.252.0 1,022 | /21 255.255.248.0 2,046 |
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How many subnets is 25?
Network Bits Subnet Mask Number of Subnets | /24 255.255.255.0 65536 (65534) | /25 255.255. 255.128 131072 (131070) | /26 255.255.255.192 262144 (262142) | /27 255.255.255.224 524288 (524286) |
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How do you calculate the number of subnets?
To calculate the number of possible subnets,
use the formula 2n, where n equals the number of host bits borrowed
. For example, if three host bits are borrowed, then n=3. 23 = 8, so eight subnets are possible if three host bits are borrowed.
How do you write a 24 subnet?
For example, the subnet mask for a routing prefix that is composed of the most-significant 24 bits of an IPv4 address is written as
255.255. 255.0
.
How many subnets does an 18 have?
Network Bits Subnet Mask Number of Subnets | /18 255.255.192.0 1024 ( 1022 ) | /19 255.255.224.0 2048 (2046) | /20 255.255.240.0 4096 (4094) | /21 255.255.248.0 8192 (8190) |
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How many subnets are in a 23?
Addresses Hosts | / 25 128 126 | / 24 256 254 | / 23 512 510 | / 22 1024 1022 |
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How many subnets are there?
Address 8.1.4.5/16 199.1.1.100/24 | Number of host bits 16 8 | Number of subnet bits 8 0 | Number of hosts per subnet 216 – 2, or 65,534 28 – 2, or 254 | Number of subnets 28 – 2, or 254 0 |
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What does 24 mean in IP address?
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. As all IPv4 networks have 32 bits, and each “section” of the address denoted by the decimal points contains eight bits, “192.0.
What is a 24 subnet?
A subnetwork or subnet is a logical subdivision of an IP network. … 100.0/24 is the
prefix of the Internet Protocol version 4 network starting at the given address
, having 24 bits allocated for the network prefix, and the remaining 8 bits reserved for host addressing. Addresses in the range 198.51.
What is the 24 after an IP address?
The “/24” here indicates that the first 24 bits are part of the network address (192.168. 10) leaving only the remaining 8 bits able to be changed for specific host addresses (0-254).
What does 23 mean in IP address?
CIDR Subnet mask # of IP addresses | /25 255.255.255.128 128 | /24 255.255.255.0 256 | /23 255.255.254.0 512 | /22 255.255.252.0 1,024 |
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What is the last usable IP address?
IP address 192.168.86.42 | First host address 192.168.86.1 | Last host address 192.168.86.254 | Subnet mask 255.255.255.0 |
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What is a 21 subnet?
Addresses Netmask | / 22 1024 255.255.252.0 | / 21 2048 255.255.248.0 | / 20 4096 255.255.240.0 | / 19 8192 255.255.224.0 |
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What is the subnet mask of 192.168 1.0 24?
CIDR block IP range (network – broadcast) Subnet Mask | 192.168.1.0/25 192.168.1.0 – 192.168.1.127 255.255.255.128 | 192.168.1.0/24 192.168.1.0 – 192.168. 1.255 255.255.255.0 | 192.168.0.0/23 192.168.0.0 – 192.168.1.255 255.255.254.0 | 192.168.0.0/22 192.168.0.0 – 192.168.3.255 255.255.252.0 |
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What is a 255.255 254.0 subnet?
255.255.254.0 =
1 bit less than 24 bits mask
, so (256 x 2) – 2 hosts = 510. And to know if an ip address is good or not regarding a certain subnet..i do the following: Is 192.168. 1.64 – 255.255.
How many subnets are in a 20?
Network Bits Subnet Mask Number of Subnets | /19 255.255.224.0 8 (6) | /20 255.255.240.0 16 ( 14 ) | /21 255.255.248.0 32 (30) | /22 255.255.252.0 64 (62) |
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