USRobotics NETServer/8 User Manual
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LAN-to-LAN Routing 6-5
addresses of “Gateways” (next hops) through which packets
should be forwarded when they are headed for given destina-
tion addresses. A gateway can be a host, a server or any other
device that performs routing functions
In the drawing below, the NETServer would require an entry for
segment C in its routes table in order to forward packets going
from network segment A to C. The entry would contain C as a
destination address and the address (on segment B) of the
gateway (next hop) needed to get there.
Note that even though network segment B uses two modems to
transfer data rather than a physical cable, it looks like a cabling
segment to Network A and Network C.
With such an entry in place, the NETServer can pick up packets
on A that are bound for C and sends them to the gateway. The
gateway handles the rest.