Recommendations for routing in a WAN-link

[Jouni Laakso]

I would need some recommendations for best practises in a WAN-link. I do not have many IP-addresses or public subnets. Is it still important to add  for example RIP, BGP or OSPF to the WAN link?

Is it possible to use my IP-address and route my IP-traffic to a foreign server? How common it is that the ISP has not given proper subnets to the outside world to use or it routes my IP-traffic not to me but to an another server using the same IP? Is it too ridiculous to add just an address and a routing protocol just for it? How do I configure this? I do not have an own AS.

Do I have to know of the ISP:s routing protocols to choose the protocol, can I determine the protocol from something? What is the best router software? 

wkr       Jouni L.