The slash following the IP address is the
abbreviation for the subnet mask
. The binary version of a subnet mask is going to be comprised of ones and zeros just as the binary verison of an IP address would be, however, the ones in a subnet mask are all consecutive.
What does a slash mean after an IP address?
It indicates the subnet mask of the IP. IP has 32 bits, and number after the slash tells you
where does the network part end, host part starts
.
What does 23 mean after an IP address?
| CIDR Subnet mask # of IP addresses | /23 255.255.254.0 512 | /22 255.255.252.0 1,024 | /21 255.255.248.0 2,048 | /20 255.255.240.0 4,096 |
|---|
What is a slash 30 IP address?
Think of the ip address as binary bits. 00000000.00000000.00000000.00000000. The /30 indicates
that the network portion is 30 bits so
, oooooooo.oooooooo.oooooooo.oooooo00. For the host bits you have 4 options, 00, 01, 10, and 11. 00 is the network and 11 is the broadcast, so you have 2 usable IPs.
What is the 32 after an IP address?
Generally speaking, /32 means that
the network has only a single IPv4 address
and all traffic will go directly between the device with that IPv4 address and the default gateway. The device would not be able to communicate with other devices on the network.
What does IP address 24 mean?
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
. … The “8” denotes that there are 24 bits left over in the network to contain IPv4 host addresses: 16,777,216 addresses to be exact.
Who gives IP address?
Your IP address is assigned to your device
by your ISP
. Your internet activity goes through the ISP, and they route it back to you, using your IP address. Since they are giving you access to the internet, it is their role to assign an IP address to your device.
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 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 |
|---|
What does 21 mean in IP address?
It’s CIDR notation for a subnet. The /21 denotes that
the first (most-significant) 21 bits are common to all addresses in the subnet
. The individual hosts in the network have addresses that are different only in the last 11 bits.
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.
What does 28 mean in IP address?
Answer: 28 is
a subnet mask
. IP address has 32 bits in total. 28 denotes network ID while rest of the bits (which are 4 bits) are used for hosts.
What does 29 mean in IP address?
/29 means that 29 of the 32 bits of the address
are the netmask
, therefore, only 3 bits are available for differentiating between computers.
How many hosts are in a 32 subnet?
| Prefix size Network mask Usable hosts per subnet | /29 255.255.255.248 6 | /30 255.255.255.252 2 | /31 255.255.255.254 0 | /32 255.255.255.255 0 |
|---|
How many IP addresses are there?
There are only about
4.3 billion possible IPv4 addresses
, which engineers assumed would be more than enough in the 1990s. With IPv6, there are about 340 trillion trillion trillion combinations — specifically: 340,282,366,920,938,463,463,374,607,431,768,211,456.
How do I ping a range of IP addresses?
- Change the IP address after @ping to reflect your network’s IP range.
- Syntax for for /l is (start,step,end) if you want to change the range to scan.
- The -w 10 tells it to only wait 10 ms for a reply before moving on.
