Sage-Tips

What is a 30 static IP?

A /30 subnet is a group of four IP addresses that are assigned to your company by D & P. Three of those addresses are required to create the subnet and deliver it to you making them unusable from the consumer side. With a Single Static IP, the address is provided to a specific router, not to the customer in general.

How many static IP addresses are in a 30?

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

CIDR	Subnet mask	# of usable IP addresses
/31	255.255.255.254	2*
/30	255.255.255.252	2
/29	255.255.255.248	6
/28	255.255.255.240	14

What does the 29 mean in an 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.

What is a 28 static IP?

/28 denotes the 28 of the 32 bits of the address are the netmask hence only 4 bits are available to differentiate the computers. However, you always lose 2 addresses for broadcast and loopback, so the result is: 2^(32–28) — 2 = 2⁴ — 2 = 16–2 = 14.

What is a 30 network used for?

Again, the /30 subnet mask provides the most efficient use of IP addresses by not wasting any IP addresses when it is applies to a point to point network connection.

What is a 32 subnet used for?

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.

How many usable hosts are in a 29 subnet?

For Class B Networks

network	network mask	hosts
/count		possible
28	255.255.255.240	16
29	255.255.255.248	8
30	255.255.255.252	4

What does 32 mean in IP address?

What is the subnet mask for 29?

Subnet Mask Cheat Sheet

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