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How do you calculate subnets for Class B?

Posted on 2022-10-14

How do you calculate subnets for Class B?

Table of Contents

  • How do you calculate subnets for Class B?
  • How many subnets are in a class B?
  • How many hosts are in a class B network?
  • What is a class B network?
  • Is 172 a private IP address?
  • Was ist ein Klasse-B-Netz?
  • Wie viele Klasse-B-Netze gibt es?

Example 6: The Class B 255.255. 255.128 subnet mask: 2-2=510 subnets. 2-2=126 hosts per subnet….Subnetting a Class B network address.

Subnet 64.0 128.0
last host 127.254 191.254
broadcast 127.255 191.255

How many subnets are in a class B?

Subnetting Class B (172.16. Hosts per subnet = 32768 – 2 = 32766. For /17 mask, we will get 2 subnets, each with 32766 hosts.

What is subnet mask of Class B?

Class B networks use a default subnet mask of 255.255. 0.0 and have 128-191 as their first octet.

What is a 24 subnet?

The subnet mask shows what part is which. /24 means that the first 24 bits of the IP address are part of the Network number (192.168. 0) the last part is part of the host address (1-254).

How many hosts are in a class B network?

Table 2-1 IP Addresses Available to Internet Hosts

Address Class First Octet Range Number of Hosts Per Network
Class A 0 to 126 16,777,214
Class B 128 to 191 65,534
Class C 192 to 223 254

What is a class B network?

A class B network is a type of network in the now-defunct classful networking architecture. The classful networking architecture defined a range of network classes: A, B, C, D and E. Class B networks have IP addresses between 128.0. 0.0 and 191.255. 255.255.

How many subnets are in a 24?

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

CIDR Subnet mask # of IP addresses
/24 255.255.255.0 256
/23 255.255.254.0 512
/22 255.255.252.0 1,024
/21 255.255.248.0 2,048

What is a 29 subnet?

The /29 means that there are 29 bits set to one in the subnet mask. The remaining three bits are set to zero. So, for example, /24 is 255.255.255.0 (each of the 255s in decimal corresponds to 8 bits in binary: 11111111). It’s just a shorthand.

Is 172 a private IP address?

Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet. Use caution when setting filters to exclude these private address ranges.

Was ist ein Klasse-B-Netz?

Klasse-B-Netze sind Netze mit einer mittleren Anzahl an Stationen. Die ersten 2 Bit sind immer “10”. Der theoretische Adressbereich reicht von 128.0.0.0 bis 191.255.255.255.

Was ist ein Klasse-C-Netz?

Klasse-C-Netze sind Netze mit einer kleinen Anzahl an Stationen. Die ersten 3 Bit des Adressbereiches sind immer “110”. Der theoretische Adressbereich reicht von 192.0.0.0 bis 223.255.255.255. Der effektive Adressbereich reicht nur von 192.0.0.1 bis 223.255.255.254. Insgesamt sind 2.097.152 Klasse-C-Netze möglich.

Wie viele Adressen gibt es in der Klasse B?

In der Klasse B sind 255 mal 255 Adressen möglich, weil zwei Byte für den Hostanteil verwendet werden (N.N.H.H). Die Klasse A-Adresse wird heute fast nicht mehr vergeben, da sie mit 16581375 adressierbaren Computern (N.H.H.H) ein sehr großes Stück aus dem knappen Adressraum herausschneidet.

Wie viele Klasse-B-Netze gibt es?

Klasse-B-Netze sind Netze mit einer mittleren Anzahl an Stationen. Die ersten 2 Bit sind immer “10”. Der theoretische Adressbereich reicht von 128.0.0.0 bis 191.255.255.255. Der effektive Adressbereich reicht von 128.0.0.1 bis 191.255.255.254. Insgesamt sind nur 16.384 Klasse-B-Netze möglich.

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