DSR: The Dynamic Source Routing Protocol for Multi-Hop Wireless Ad Hoc Networks ( pdf)

RFC 4728 ( txt)

Node S wants to send a message to node D.

1. S searches its route cache.
2. If a suitable route is found, send the message along the route, placing in the header the whole sequence of hops that the message should follow on the way to D.

1. S sends a Route Request message to every reachable node.