# What is the subnet mask for 30?

## What is the subnet mask for 30?

255.255.255.252
Class C

Network Bits Subnet Mask Number of Subnets
/27 255.255.255.224 8 (6)
/28 255.255.255.240 16 (14)
/29 255.255.255.248 32 (30)
/30 255.255.255.252 64 (62)

## How many bits do I need for a 30 subnet?

Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References

/30 255.255.255.252 4
/29 255.255.255.248 8
/28 255.255.255.240 16
/27 255.255.255.224 32

What is the subnet mask of 192.168 1.0 24?

255.255.255.0
1.0 with subnet mask = 255.255. 255.0. Shorthand (AKA CIDR, Classless Inter-Domain Routing), this can be written 192.168. 1.0 /24 where the ‘/24’ represents the number of subnetwork bits active in the mask.

### How do I make a 30 subnet?

Remember that each bit in an octet has a decimal value. For example, the first low-order bit on the far right of the octet has a decimal value of 1, the bit to its left has a value of 2 and so on. So, to create 30 subnets you add the lower order bits’ decimal values until you come up with a value of 31.

### What does IP 30 mean?

IP30. Protected from tools and wires greater than 2.5 millimeters. Not protected from liquids.

What is a 31 subnet?

31-bit Subnet Mask (/31) A 31-bit subnet mask is often used for an interface that is the endpoint of a point-to-point network. The use of 31-bit subnet masks for IPv4 point-to-point links is described in RFC 3021. For 192.168.0.0. Router A is connected via Fast-ethernet 0/0 having ip 192.168.

## Is 31 a valid subnet mask?

A 31-bit subnet mask is often used for an interface that is the endpoint of a point-to-point network. The use of 31-bit subnet masks for IPv4 point-to-point links is described in RFC 3021.

## What is the biggest subnet mask?

When you talk about the largest possible subnet mask, you are generally referring to the largest possible network portion and smallest usable host portion. For routing subnet purposes, the largest subnet mask is 255.255. 255.252 (/30).

A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s. In this way, the subnet mask separates the IP address into the network and host addresses. The “255” address is always assigned to a broadcast address, and the “0” address is always assigned to a network address.

### 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.

### What does 32 mean in 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.

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