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What is a Router?:
The router, at least the common home network device that we usually call a router, is the piece of network hardware
that allows communication between your local home network - i.e. your
personal computers and other connected devices - and the Internet.
The Router is Also Known As:
The "router" used in home and small networks is more accurately called a "residential gateway."
Important Router Facts:
A
router is the first line of security from intrusion into a network.
Enabling the highest level of security on the router is the best way to
keep your computer system and information safe from attack.
Routers contain software called firmware that should be updated as released by the router manufacturer.
Most routers connect to other network devices only via network cables and do not require drivers to operate in Windows or other operating systems. However, routers that connect to a computer via a USB or FireWire typically require drivers to operate properly.
Routers often act as the DHCP servers in small networks, issuing unique IP addresses.
Routers contain software called firmware that should be updated as released by the router manufacturer.
Most routers connect to other network devices only via network cables and do not require drivers to operate in Windows or other operating systems. However, routers that connect to a computer via a USB or FireWire typically require drivers to operate properly.
Routers often act as the DHCP servers in small networks, issuing unique IP addresses.
Popular Router Manufacturers:
Router Description:
Routers
connect a modem - like a DSL, cable, or fiber modem - to other devices
to allow communication between those devices and the Internet. Most
routers, even wireless routers, usually feature several network ports to
connect numerous devices to the Internet simultaneously.
Typically, a router connects physically, via a network cable, to the modem via the "Internet" or "WAN" port and then physically, again via a network cable, to the network interface card in whatever wired network devices you may have. A wireless router can connect via various wireless standards to devices that also support the particular standard used.
The IP address assigned to the "WAN" or "Internet" connection is a public IP address. The IP address assigned to the "LAN" or local network connection is a private IP address. The private IP addresses assigned to a router is usually the default gateway for the various devices on the network.
Wireless routers, and wired routers with multiple connections, also act as simple network switches allowing the devices to communicate with each other. For example, several computers connected to a router can be configured to share printers and files amongst themselves.
Typically, a router connects physically, via a network cable, to the modem via the "Internet" or "WAN" port and then physically, again via a network cable, to the network interface card in whatever wired network devices you may have. A wireless router can connect via various wireless standards to devices that also support the particular standard used.
The IP address assigned to the "WAN" or "Internet" connection is a public IP address. The IP address assigned to the "LAN" or local network connection is a private IP address. The private IP addresses assigned to a router is usually the default gateway for the various devices on the network.
Wireless routers, and wired routers with multiple connections, also act as simple network switches allowing the devices to communicate with each other. For example, several computers connected to a router can be configured to share printers and files amongst themselves.
Common Router Tasks:
Here are some common things you might do that involve a router:
- Change a Router's Password
- Configure Wireless Security on a Router
- Update a Router's Firmware
Other Router Related Content
Related Articles
- How To Identify Network Hardware IP Addresses on a Local Network
- Networking With A Router - Connecting Devices To Your Router
- Disable DHCP and Use Static IP Addresses To Protect Your Wireless Network
- Router Setup and Configuration Guide - Setup a Router
- Router Setup - Two Routers on Same Home Network?
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