Don't laugh. It is probably the most reliable, easiest
to implement, and least likely to get one into trouble
for a small network or a leaf on the Internet. This is,
also, the only method available on some CPU-operating
system combinations. If a host is connected to an Ethernet
which has only one gateway off of it, one should make that
the default gateway for the host and do no other routing.
(Of course that gateway may pass the reachablity
information somehow on the other side of itself).
One word of warning, it is only with extreme caution that
one should use static routes in the middle of a network
which is also using dynamic routing. The routers passing
dynamic information are sometimes confused by conflicting
dynamic and static routes. If your host is on an ethernet
with multiple routers to other networks on it and the
routers are doing dynamic routing among themselves,
it is usually better to take part in the dynamic routing
than to use static routes.