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NETWORK ACCESS - Coggle Diagram
NETWORK ACCESS
Convert between binary and decimal
numbering system
IPV4 ADDRESS
expressed in 32 binary bits (4-8 octets)
but commonly expressed in decimal notation
POSITIONAL NOTATION
1st row
- BASE/RADIX
Decimal=10,Binary=2,Radix=2
2nd row
- position of number (0)
3rd row
- calculate positional value by taking the radix and raising it by the exponential value of it position
4th row
- positional value
BINARY-DECIMAL
(enter the 8-bit binary number of each octet under the positional value of row 1 and then calculate to produce the decimal)
DECIMAL - BINARY
(use positional chart to check if the number is greater than 128bit. If no "0" will be placed, if yes "1" is placed)
Network and Host Portions
An IPv4 address is hierarchical where it is a composed of a Network portion and Host port
SUBNET MASK
The IPv4 address is compared to the subnet mask bit by bit, from left to right. A 1 in the subnet mask indicates that the corresponding bit in the IPv4 address is a network bit.
Logical AND
Used to determine the Network Address
PREFIX LENGHT
Shorthand method of expressing the subnet mask
Equals the number of bits in the subnet mask set to 1
HOST
Hosts in a small network can also be configured with static addresses
IPV4 COMMUNICATION
UNICAST
- ONE TO ONE
BROADCAST
- ONE TO ALL
MULTICAST
-ONE TO A SELECT GROUP
PRIVATE
IPV4 ADDRESSES
Not routable
used in internal network
Must be translated to a public IPv4 to be
routable
Defined as RFC 1918
