This type of implementation is not transparent to application, kind of
binding everything together, what mif is trying to do is to avoid it.

thanks

-Hui


2009/4/23 Christian Huitema <huit...@windows.microsoft.com>:
>> (2) There is no way that these decisions can be made solely at the
>> transport or application layer, because source (and to a lesser degree
>> destination) address selection is tightly tied to the first-hop
>> forwarding decision.  The outbound interface, source address and default
>> router all have to be selected in a coordinate process, to avoid sending
>> traffic that will be discarded on the outbound path, due to router
>> filters.
>
> Actually, applications can to do that today, using the socket API, if the 
> stack implements the "strong host" model. The application just needs to bind 
> the socket to a specific IP address. Doing that ensures that packets sourced 
> by the application will use the specified address, will go out through the 
> interface corresponding to that address, and will use the default gateway 
> associated with that interface.
>
> -- Christian Huitema
>
>
>
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