Q & A on Record Route Option

Q: IP uses next-hop routing. Does that mean for routing 1 way i can think of is snd copies of datagram which travels thro' every route & at the same time records the route using the record route option & then snd the datagram back to the source. my doubt was just that. Is that how it dynamically records the route. This is 1 logical way i can think of.

A: The record route option simply causes intermediate routers to record their address as the datagram a passes through. In general, it is only used by someone who is debugging the network (i.e., to find a problem). Sending multiple datagrams simultaneously will not find all possible routes because datagrams sent at the same time are all likely to follow the same route.