A router is a network device that connects different networks and directs data to the correct destination. It decides where network traffic should go based on the destination IP address.

A router commonly connects a local network to the internet. It can also provide services such as DHCP, NAT and basic firewall protection.

Common Uses

• Connecting a home or office network to the internet.
• Directing traffic between different networks.
• Sharing one internet connection with multiple devices.
• Providing local IP addresses to connected devices.
• Controlling and filtering network traffic.

Related Terms: IP Address, Routing, Network Switch, Gateway, NAT, DHCP, Firewall, Routing Table, Default Gateway, Internet Gateway

Related Entries

• Router
• Static NAT
• ARP
• Bridge Mode
• Firewall