I don’t know how it has started, but I think at the moment ‘Router’ is the most misunderstood term in networking! People, even some technicians use it in wrong places. Yesterday I had a discussion with a technician who insisted to get a gateway/router IP address to do some local communication. When I asked him why you need it? I heard irrelevant explanations!  In this case, it turned out that he needed a DHCP server! but in general many think that Router/Gateway is a mandatory device in networking! while rarely they think of switch! Maybe we should blame Wireless AP producers!