Basic IPv4 Reference

March 27, 2007

For all those who don’t like to remember the details I have included my quick reference to IPv4. Its not Linux full fledged but can offer some pointing in the right How direction. IPv4 cheap nfl jerseys is the fourth iteration of the Internet Protocol (IP) and is the ESCENE most widely deployed. If you want some ugly history details you can always refer wholesale jerseys to IETF RFC (791). Otherwise just know IPv4 wholesale nba jerseys is a data oriented protocol to be used on packet switched internetworks such as ethernet.

The following shows Version 4 IP addressing consisting of 32-bit binary number of four octets (dotted decimal notation)

Classful Addresses

Class A (24 Bit) 1-126.x.x.x
Class B (20 Bit) 128-191.x.x.x
Class C (16 Bit) 192-223.x.x.x
Class D Multicast 224-239.x.x.x
Internal Loopback 127

Private IP Address Ranges

Class A (24  <a href="http://www.odontoforum.com.br/viewtopic.php?f=16&amp;t=25763"></a>  Bit) 10.0.0.0-10.255.255.255 CIDR Mask /8 Decimal Mask 255.0.0.0
Class B (20 Bit) 172.16.0.0-172.31.255.255 CIDR Mask /12 Decimal Mask 255.240.0.0
Class C (16 Bit) 192.168.0.0-192.168.255.255 CIDR Mask /16 Decimal Mask 255.255.0.0

/24 IP Bit Mask

Dotted Decimal Mask: 255.255.255.0
Effective Hosts: 254
Effective Subnets: 1
Usable  <a href="http://www.cheapjerseysgest.com">cheap mlb jerseys</a>  IP&#039;s: 254

/25 IP Bit Mask

Dotted Decimal Mask: 255.255.255.128
Effective Hosts: 252
Effective Subnets: 2
Usable IP&#039;s: 126

/26 IP Bit Mask

Dotted  <a href="http://reforcodeestruturas.com.br/fibradecarbono/fibra-de-carbono-na-construcao/">Fibra</a>  Decimal Mask: 255.255.255.192
Effective Hosts: 248
Effective Subnets: 4
Usable IP&#039;s: 62

/27 IP Bit Mask

Dotted Decimal Mask: 255.255.255.224
Effective Hosts: 240
Effective Subnets: 8
Usable IP&#039;s: 30

/28 IP Bit Mask

Dotted Decimal Mask: 255.255.255.240
Effective Hosts: 224
Effective Subnets: 16
Usable IP&#039;s: 14

/29 IP Bit Mask

Dotted Decimal Mask: 255.255.255.248
Effective Hosts: 192
Effective Subnets: 32
Usable IP&#039;s: 6

/30 IP Bit Mask

Dotted  <a href="http://www.wholesalejerseyslan.com">cheap nfl jerseys</a>  Decimal Mask: 255.255.255.252
Effective Hosts: 128
Effective Subnets: 64
Usable IP&#039;s: 2

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