Finding the IP address from the DNS

Finding the IP address of the default gateway

Finding the IP address that corresponds to a MAC address

Finding the MAC address that corresponds to an IP address

Both bridge and router selectively forward data packets

A bridge uses IP addresses while a router uses MAC addresses

A bridge builds up its routing table by inspecting incoming packets

A router can connect between a LAN and a WAN

It is possible for a computer to have multiple IP addresses

IP packets from the same source to the same destination can take different routes in the network

IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops

The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way