Clear and Short Explanation of IPv4 | Internet Protocol Version 4

5개월 전

IPv4 | Ineternet Protocol Version 4 (IPv4) Clear and breif expalanation
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CLASS C – IPV4
• General Details about Class C of IPv4
o 192.0.0.0 To 223.255.255.255 Range
o 2^21 = 2,097,152 Networks
o (2^8 - 2) = 254 VIPs/Network
o (2^29) = 536,870,912 12.5% Of IPs in IPv4

o First Network
192.0.0.0 Network ID/ NIP
192.0.0.1 Valid IP (VIP)
192.0.0.2
192.0.0.3
.
.
.
192.0.0.254 Valid IP (VIP)
192.0.0.255 Broadcast IP (BIP)

o Second Network
192.0.1.0 NIP
192.0.1.1 VIP
192.0.1.2
.
.
.
192.0.1.254 VIP
192.0.1.255 BIP

o Last Network
223.255.255.0 NIP
223.255.255.1 VIP
223.255.255.2
.
.
.
223.255.255.254 VIP
223.255.255.255 BIP

o Public and Private IPs of Class C
 All IPs are public, except: 192.168.x.x
o The Class full Subnet Mask For Class C
 255.255.255.0
 Three first portions are Network, and one last portion is Host.

CLASS B
• General Details about Class B – IPv4
o 128.0.0.0 - 191.255.255.255 Range
o 2^14 = 16384 Networks
o (2^16 - 2) = 65534 Valid IPs/Network
o 2^30 = 1,073,741,824 25% of IPs in IPv4

o First Network
128.0.0.0 Network IP (NIP)
128.0.0.1 Valid IP (VIP)
128.0.0.2
.
.
128.0.0.254 Valid IP (VIP)
128.0.0.255 Valid IP (VIP)

    128.0.1.0
    128.0.1.1
    .
    .
    .
    128.0.1.254
    128.0.1.255
    .
    .
    .
    128.0.255.254           Last Valid IP
    128.0.255.255           Broad Cast IP (BIP)

o 2nd Network
128.1.0.0 NIP
128.1.0.1 VIP
.
.
.
128.1.255.254 VIP
128.1.255.255 BIP

o Last Network
191.255.0.0 NIP
191.255.0.1 VIP
.
.
.
191.255.255.254 VIP
191.255255.255 BIP

o Public & Private IPs in Class B
All Networks are public except:
172.16.x.x ---> 172.31.255.255
o Class B class-full Subnet-Mask
 The Class B Class-full Subnet Mask is: 255.255.0.0
 Two first portions are Network, and two last are Host

CLASS A
• General Details About Class A – IPv4
o 1.0.0.0 to 126.255.255.255 Range
o (2^24 - 2 = 16,777,214) VIP/Network
o 2^31 = 2,147,483,648 50% of IPs in IPv4

o 1st Network
1.0.0.0 Network IP
1.0.0.1 Valid IP
.
.
.
1.0.0.254 Valid IP
1.0.0.255 Valid IP
1.0.1.0
1.0.1.2
.
.
.
1.255.255.254 Valid IP
1.255.255.255 Broadcast IP

o 2nd Network
2.0.0.0 NIP
2.0.0.1 VIP

    .
    .
    .
    2.255.255.254           VIP
    2.255.255.255           BIP

o Last Network
127.0.0.0 NIP
127.0.0.1 VIP
.
.
.
126.255.255.254 VIP
126.255.255.255 BIP
o Public & Private IPs of Class A
 All IPs are public except:
• 10.x.x.x
o Class-full Subnet-Mask of Class A
 255.0.0.0
 1st portion is Network, and three last portions are Host.

CLASS D
• Dedicated for multicasting purposes
• Class D has its highest bit order set to 1-1-1-0 it is used to support multicasting.
• 224.0.0.0 -> 239.255.255.255 Range

CLASS E
• Dedicated for researches and development aims.
• Class E has its highest bit order set to 1-1-1-1 which is reserved for experimental use.
• 240.0.0.0 -> 254.255.255.255

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