IPFW with user-ppp's NAT

[Razmig K]

Hello,

With IPFW enabled in the kernel, I'd like to use the NAT functionality 
of user-ppp instead of natd. Do I need the IPDIVERT option in the kernel 
and the special arrangement of divert and skipto rules in the ruleset? 
Or, a non-NATed ruleset (as demonstrated in handbook section 28.6.5.6) 
would suffice?
If divert rules are necessary, what argument do I need to pass to action 
divert in place of natd?

Thank you.


//rk