Jennifer, a technician, replaces a customer's router, and is now unable to ping the ISP's gateway. Which of the following should the technician check?
The arp table of the ISP's gateway router.
The arp table of the network user
The route table of the next-hop router
The route table of the new customer's router
Correct Incorrect Unanswered
Answer Description
Because the router is new, it is likely that the new customer's router has not yet updated it's route table and that would be the best place to look.
Wikipedia
In computer networking, a routing table, or routing information base (RIB), is a data table stored in a router or a network host that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes. The routing table contains information about the topology of the network immediately around it.
The construction of routing tables is the primary goal of routing protocols. Static routes are entries that are fixed, rather than resulting from routing protocols and network topology discovery procedures.
Routing_table - Wikipedia, the free encyclopedia 