features request for kernel's libalias and ipfw nat

[Dmitriy Demidov]

Hi list,

I just wonder how hard it would be to implement a following list of features:
- ability to use proxy_rule statement in ipfw nat (natd -proxy_rule)
- ability to see actual content of libalias nat table (ipfw nat 1 show table)
- ability to use one aliasing table in multi nat instances (natd -globalport)

Would it be posible to see this features in ipfw nat some day?
How mach would it cost to sponsore development of this features directly (if 
it is the only way to get them)?  :)

Thanks.