> 	Humm. pppd doesn't allow the remote address to be different
> from the given address (whether from the command line or an options
> file) when it's configured for demand-dial.  This may well be an
> unnecessary restriction in pppd, as iijppp manages fine.

Uhm, well, your on demand IP could be based on a different critieria than =
just a single foreign IP.  Such criteria could be a network or fraction =
thereof.  As long as IPCP is allowed to renegotiate the remote IP, there =
shouldn't be a problem.  You do have a problem, though, if you want both =
sides to be able to force the link up on-demand and you use the PPP =
interface's IP as the trigger.  A pseudo IP address on another interface =
than the PPP interface would solve that.  However, if you do that, you'd =
waste considerably more IP space.

In other words, it can be done, just depends on how much pain you care to =
endure when breaking all your limbs iteratively.

Chris=