Ip Addressing

IP Address ,[object Object],[object Object],[object Object],[object Object],[object Object]

Internet Layer Application Transport Network Network Interface ,[object Object],[object Object],[object Object],[object Object],[object Object]

Internet Control Message Protocols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ICMP Illustration Network y No Route To Network Y Destination Unreachable

Internet Growth ,[object Object],[object Object],[object Object],[object Object],[object Object]

IP addressing basics ,[object Object],[object Object],HOST ADDRESS NETWORK ADDRESS IP ADDRESS FORMAT

IP addressing basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

IP addressing illustration 192.168.1.0 192.168.2.0 192.168.1.1 192.168.1.2 192.168.2.1 E0 E1

Classful addressing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Class A - IP addresses ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],0 Network Bits Host Bits 0 7 8 31

Special addresses Network bits Host bits (all 1’s) Broadcast address Network bits Host number (all 0’s) This network(Local)

Special Address illustration 192.168.1.0 192.168.1.1 192.168.1.2 192.168.1.3 Destination IP HELLO 192.168.1.255 ALL Destination IP HELLO 192.168.1.255 ALL Destination IP HELLO 192.168.1.255 ALL ,[object Object],[object Object],[object Object]

Class B – IP addresses ,[object Object],[object Object],[object Object],[object Object],1 0 Network Bits Host Bits 0 1 15 16 31

Class C – IP address 0 Network Bits Host Bits 0 23 24 31 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Dotted Decimal Notation & IP classes Class A 1.0.0.0 – 126.255.255.255 Class B 128.0.0.0 – 191.255.255.255 Class C 192.0.0.0 – 223.255.255.255 Class D 224.0.0.0 – 239.255.255.255 Class E 240.0.0.0 – 254

Limitations in classful addressing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Subnetting ,[object Object],HOST ADDRESS NETWORK ADDRESS Two level hierarchy NETWORK ADDRESS Three level hierarchy SUBNET HOST ADDRESS ,[object Object]

Subnetting benefit 150.151.1.0 150.151.2.0 150.151.3.0 150.151.40 150.151.0.0 150.151.1.0 E0 150.151.2.0 E1 150.151.3.0 E2 Customer Routing Table 150.151.0..0 S0 ………… .. ……… .. ………… . Service Provider Routing Table S0 S1

Subnetting benefits ,[object Object],[object Object],[object Object]

Subnetting examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Subnet design considerations Questions to ask as network support ,[object Object],[object Object],[object Object],[object Object],Apply

Private IP addresses ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conserving Public IP addresses ,[object Object],[object Object],[object Object],Internet Private IP: 10.1.1.5 10.1.1.5 Internet 202.144.50.51 Internet

Network Address Translation ,[object Object],[object Object],[object Object],Internet IP: 10.1.1.5 10.1.1.5 Internet 202.144.50.51 Internet

NAT usage in SIFY SIFY Backbone MDU Services Private IP 10.x.y.z IWAY services Private IP 172.x.y.z NAT is done here

Enterprise NAT/PAT example SIFY IP: 10.1.1.0 NAT converts the customer 10.1.1.0 private LAN IP into public IP

IP Next Generation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MAC Address ,[object Object],[object Object],[object Object],[object Object],[object Object]

Ip Addressing

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