A router is a specific networking device connected to different networks running software that improves your IT presence. Router supports network security that permits the router to shift data from one network to another. Listed below are some of the lesser known Facts about Routers.
How Do Routers Work?
- Let’s use a home wireless router connected to a cable provider’s internet network in a very simplified example.
- The router powers on and loads it’s OS from flash
- The router stacks the setup record last saved to NVRAM and configures the network/system interfaces and directing conventions it will run.
- The router includes the system address and sub net for every interface to it’s directing table alongside the interface’s name itself.
- The router has a basic static default course to send all non-nearby information out the system port associated with the cable company.
- At the point when the router gets a website page request from your PC, it checks the destination IP address against its routing table.
Routers are basically used to hook up networks in concert and they also perform the subsequent network functions, which you ought to identify and describe in the Network+, CCNA or JNCP exam:
Functions of a Router
- Learn and advertise loop free paths
- Restrict broadcasts to the LAN
- Move (route) data between networks
- Act as the default gateway
- Calculate ‘best paths’ to reach network destinations
- Perform Protocol Translation (Wired Ethernet to Wireless/WiFi, or Ethernet to CATV)
Router Components & Parts
Given that routers are only specialized computers, they possess the equivalent “parts” as other computers:
- Central Processing Unit (CPU)
- Flash Memory
- Non-Volatile RAM
- Network Interfaces