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A default gateway is the node in a network that forwards packets to other networks when no other route matches the destination IP address. Learn how default gateways work, how to configure them, and see examples of single and multi-router networks.
A gateway address is a router interface that sends packets out of the local network. It has a logical address (gateway IP) and a physical address (MAC address). Learn how to configure and use gateway address.
A default route is a configuration of IP that establishes a forwarding rule for packets when no specific address of a next-hop host is available. The default route is often the address of another router, which is also called the default gateway.
A gateway is a device or software that connects different networks or protocols. Learn about network gateways, Internet-to-orbit gateways, cloud storage gateways, IoT gateways and more.
Network address translation (NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets. Learn about the history, types, methods and applications of NAT, and how it relates to IPv4 address exhaustion.
A routing table is a data table that lists the routes to particular network destinations and metrics associated with them. It is constructed by routing protocols and network topology discovery procedures. Learn more about the fields, functions and difficulties of routing tables.
VRRP is a networking protocol that provides automatic assignment of IP routers to hosts for reliability and availability. It creates virtual routers with primary/active and secondary/standby routers that act as default gateways for participating hosts.
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