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Chapter 3.1 CONSTRUCT IP ADDRESSING AND SUBNETTING (Summary) - Coggle…
Chapter 3.1 CONSTRUCT IP ADDRESSING AND SUBNETTING (Summary)
Conversion
Convert between binary and decimal numbering systems.
IPv4 addresses-number 0 and 1 called bits.Expressed in 32 bits divided into 4 8 bit octets.
Using positional notation
Network and host portions
Example IPv4 192.168.10(network portion)
.10(host portion)
All devices on the same network must have the identical network portion
The Subnet Mask helps devices indentify the network portion and host portion.Unique IPv4 address of the host.Identifies the network and host portion of the IPv4 address
Default gate is IP address of the local router interface
The IPv4 address compared to the subnet mask bit by bit, from left to right.
The prefix length
Shorthand method of expressing the subnet mask
Equals the number bits in the subnet mask set to 1
Written in slash notation and followed by the number of network bits
Network, host , and broadcast addresses
Network address - host portion is all 0s
First host address - host portionis all 0s and ends at a 1
Last host address- host portions is all 1s and ends at a 0
Broadcast address- host portion is all 1s
Static IPv4 address assignment to a host -ip address does not change any time, it means if a static ip address is provided then it can't be changed or modified.
Dynamic IPv4 address assignment to a host-While dynamic ip address change any time.
IPv4 communication
Unicast -one to one
Broadcast - one to all
Multicast - one to all select group
Public and private IPv4 address
Private-Private (internal) addresses are not routed on the Internet and no traffic can be sent to them from the Internet, they only supposed to work within the local network
Public-A public IP address is an IPv4 address that's reachable from the Internet. We can use public addresses for communication between your instances and the Internet.
Special use IPv4 addresses
loopback addresses
link-local addresses
Test-Net addresses
Legally Classful Addressing
Class A-(0.0.0.0/8 to 127.0.0.0/8)
Class B-(128.0.0.0 /16 – 191.255.0.0 /16)
Class C-(192.0.0.0 /24 – 223.255.255.0 /24)
Classless Addressing-Classless Addressing is an improved IP Addressing system. It makes the allocation of IP Addresses more efficient.