Computers are usually not connected directly, but are accessible through a series of routers. A router operates much like a postal office. When it receives a packet, it looks at the destination and determines which route to send it on. Switches usually choose the route that is closest to the destination computer. They keep track of all their routes in a routing table.

Pause the simulation and look at one of the packets. It contains only the srcip and dstip headers we saw in the earlier levels. There is no extra information to tell the routers how to send the packet. Instead, this information is stored in the router's routing table.

To pass this level, send a packet from Bob's computer to Carol's computer.

### Level Objectives

- send a packet from Bob to Carol