Consider the following
Host a workstation
Host b default router
If host a wants to wants to surf the
web it need to route its packed through
host b ( am I right so far )
How does it do this?
Is host b listening to every port and
relaying the incoming packets?
Or does host a know that it need
to use the default host as it can
see it does not know the route by
examine its routing table and so
change the way it sends its requests?
Also how do you know why routing
Protocol your network is using
RIP, IGRP, OSPF, other?