How is the best way to send an ip block to a router that is not part of my network,
I have Area 1 <----> Area 0 <----> Area3,
An external router is connected to a router that belog Area3, so I need to send an Ip block to that external router and that ip block need to reach from all areas that i have (Area 1 and Area 0,)
what is the best practice (the best configuration) to send ip blocks to routers that are conected to diferents routers into Area3. lilke ISP scheme?
thanks for you help