[c-nsp] Multihoming

[Voigt, Thomas]

Hi Rocker,

Rocker Feller wrote:

> I am pretty new to this concept and would appreciate any 
> guidance on how as
> a customer I can achieve redundacy with autofailover between 2 ISPs.

You need PI space to do this. Because each ISP can only route his own PA spaces plus the PI spaces from his customers.

Maybe there could be a solution with doing some NAT on ISP2 to let your PA space  from ISP1 look like PA space from ISP2.
This could do redundancy in upstream direction but not in downstream.

But if you have some public servers you need PI space. 

-- 
Greetings

Thomas