Index

COMPUTER NETWORKING

  1. INTRO
    1. TCP/IP Five Layer Model
    2. NETWORKING DEVICES
    3. PHYSICAL LAYER
    4. DATALINK LAYER
  2. NETWORK LAYER
    1. IP
    2. SUBNET
    3. ROUTING
  3. TRANSPORT & APPLICATION LAYER
    1. TRANSPORT LAYER
    2. CONTROL FLAGS
    3. APPLICATION LAYER
    4. ALL TOGETHER
  4. NETWORK SERVICES
    1. DNS - NAMES RESOLUTION
    2. DHCP
    3. NAT
    4. VPN
  5. CONNECTING TO INTERNET
    1. BROADBAND
    2. WAN
    3. WIRELESS NETWORKING
  6. TROUBLESHOOTING
  7. MORE ABOUT
    1. DNS
    2. IPv6
    3. CLOUD

ROUTING

Router : Forwards traffic depending on the destination address

images/6-1.png


Routing protocols: communication btwn routers
1.Interior Gateway Protocols : Used by routers to share info within a single network operator
• Link state routing protocols
images/6-2.png
• Distance-vector protocols
images/6-3.png


Exterior Gateway Protocols : Used to communicate data between routers representing edges of a network/.

IANA -> IP , ASN(AUtonomous System NUmber) allocations

Non-routable addresses : Ranges of ips set aside which will not be forwarded by co-routers. Hence every one can use it for their internal networks.
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16