Static Routing and Default Routing.

Hello Boys & Girls..
In normally CCNA we learn lots of theory regarding routing types static and dynamic but actually where static routing is really used no one tell you, most of times it is used in customer premises equipments. like I give some brief example





R1(config)#ip route 0.0.0.0 0.0.0.0 s3/0
called Default static routing

IPS(config)#ip route 192.168.20.0 255.255.255.252 s0
IPS(config)#ip route 10.10.10.0 255.255.255.252 s0

As you see here IPS can't create default route cause on IPS router more than one customer are connected so IPS router manually specified or introduce your all network in their network that you have to care about that. one more thing after static routing it will be redistribute with IPS routing method so as Customer you don't need to very that ISP's responsibilities to introduce their network wholeover


Thank you,
Regards,
Jignesh