Network layer

Network layer

1. network layer protocol

   • the network layer in communications
     • the network layer
     • network layer protocols
   • ip protocol characteristics
     • ip: encapsulamieto
     • ip: characteristics
     • ip: without connection
     • ip:minimum service delivery
     • ip: independent of the media
   • ipv4 package
     • ipv4 packet headers
     • ipv4 headers wireshar
     • ipv4 header fields
   • ipv6 package
     • limitation of ipv4
     • ipv6 improvements
       • greater direction spacing
       • better handling of packages
       • the need for nat is eliminated
     • ipv6 encapsulation
     • ipv6 packet header
     • ipv6 wireshark header
     • ipv6 header fields

2. Routing

   • Routes - Host
     • host forwarding decision
     • default gateway
     • use of the default gateway
     • host routing tables
   • Router routing tables
     • desicion of sending packets of the router
     • ipv4 router routing table
     • routing input connected directly
     • Routing table entries of remote networks
     • direction of the next jump

3. Routers

   • Anatomy of a routers
   • The CPU and OS of the router
   • Router memory
   • inside of a router
   • connection to a router a router
   • wan and lan interfaces

4. configuring a router in cisco

   • configuration of the initial parameters
     • switch configuration
     • Router configuration
   • interface configuration
     • router interface configuration
     • Interface configuration verification
   • default gateway configuration
     • Default gateway for a host
     • Default gateway for a switch