Chapter 5 - Networking Devices

Chapter 5 - Networking Devices

1. Common Network Connectivity Devices

   • Hub
     • Connects all the segments of the network together in a star topology
     • Nothing more than glorified repeater incapable of recognizing frams or data structures.
   • NIC
     • Provides the physical, electrical, and electronic connestions to the network media.
   • Bridge
     • Network device that connects 2 similar network segments together
     • Primary function is to keep traffic separated / breaking up collision domains.
   • Basic Router
     • Connect many, sometimes disparate network segments. Combining them into an internetwork / Break up Collision & Broadcast domains
       • Interfaces must be configured, enabled and assigned an IP address
   • Basic Firewall
     • Software or hardware device that protects LAN resources from invaders
       • Internet is on Public side
       • Network is on the Private side
   • DHCP
     • Assigns IP address to hosts
       • Runs on top of BootP protocol
   • Switch
     • Connect multiple segments / Break up collision domains
       • Recognizes frames
       • pays attention to the source and destination MAC address of incoming frame
       • Pays attnention to the port on which it was recieved

2. Other Specialized Devices

   • Multilayer Switch
   • Load Balancer
   • DNS Server

3. Planning/Implenting a Basic SOHO Network using Network Segmentation