What is the role of a Routing Table in a router?

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What is the role of a Routing Table in a router?

A routing table guides how a router forwards packets by listing destination networks and the next hop or exit interface to reach them. When a packet arrives, the router looks up the destination IP and uses the longest matching prefix to decide the best path, then forwards the packet to the next-hop address or out the specified interface toward its destination. Routes in the table can be learned automatically through dynamic routing protocols or configured manually as static routes. This mechanism is separate from encryption tasks, MAC address learning for local frame forwarding, or VLAN management, which are handled by other parts of the network stack.

A routing table guides how a router forwards packets by listing destination networks and the next hop or exit interface to reach them. When a packet arrives, the router looks up the destination IP and uses the longest matching prefix to decide the best path, then forwards the packet to the next-hop address or out the specified interface toward its destination. Routes in the table can be learned automatically through dynamic routing protocols or configured manually as static routes. This mechanism is separate from encryption tasks, MAC address learning for local frame forwarding, or VLAN management, which are handled by other parts of the network stack.

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