A network router is a device that allows oneLANto be linked to other LANs or to larger networks. A router operates at the network layer of the OSI model and is responsible for forwarding data packets between networks.When a packet is received on one interface of arouter, the router examines the packet's destination IP address and determines which interface the packet should be forwarded to based on its routing table. This enables routers to connect multiple networks together, including LANs and wide area networks (WANs).In addition to forwarding packets, routers can also perform other functions such as network address translation(NAT), which allows multiple devices on a LAN to share a single public IP address, and firewalling, which can filter traffic based on various criteria such as source IP address, destination IP address, or application protocol. Overall, routers are a crucial component of modern computer networks, allowing for communication between different networks and ensuring that data is delivered to its intended destination.Learn more aboutLANhere:brainly.com/question/28038979#SPJ11...

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