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Chapter 3.1 Contruct IP addressing and subnetting - Coggle Diagram
Chapter 3.1 Contruct IP addressing and subnetting
3.2.2 Convert between binary and decimal numbering systems
IPV4 addresses
Binary numbering system consists of the numbers 0 and 1 called- IPV4 addresses are expressed in 32 binary bits divided into 4
IPv4 addresses are commonly expressed in dotted decimal nota
Binary to Decimal Conversion
To convert a binary IPv4 address to decimal enter the 8-bit binary number of each octet under the positional value of row 1 and then cauculate to produce the decimal
3.2.3 Implement an IPV4 addressing scheme
Network and Host portions
An IPv4 address is
hierarchical-
Composed of a network portion and host portion
The subnet mask
Unique IPv4 address of the host.
Subnet mask- Identifies the network/host portion of the IPv4 address
Default gateway- IP address of the local router interface
The IPv4 address is compared to the subnet mask bit by bit, from left to right
Logical AND
1 AND 1= 1
0 AND 1= 0
0 AND 0= 0
1 AND 0= 0
The prefix length
Shorthand method of expressing the subnet mask.
Equals the number of bits in the subnet mask set to 1.
Written in slash notation, followed by the number of network bits
IPv4 Unicast, Broadcast, and Multicast
Static Ipv4 Addresses Assignment to a host
Some devices like printers, servers, and network devices require a fixed IP address
Hosts in a small network can also be configured with static addresses
Dynamic IPv4 Address Assignment to a host
Most networks use Dynamic Host Configuration Protocol (DHCP) to assign IPv4 addresses dynamically
DHCP leases the addresses to hosts for a certain length of time
Unicast- one to one communication
Broadcast- one to all
Multicast- one to a select group
Types of IPv4 address
Private address
Not routable
Used only in internal network
Defined by RFC 1918
Special User IPv4 addresses
Legacy classful addressing
Classes addressing
Assignment of IP address