Is this possible? (Networking questions)

[tyeeeee1]

Hey,

Ok third time trying to type this out...

-I want to use Hamachi as a "virtual" router
-Can I use my Hamachi IP instead of my External IP on DynDns
-If I go through the usual steps to make my server public without hamachi with a Dyndns thing such as "lolrotflmao.dyndns.org" or something like that will it work? (This question is if the "lolrotflmao.dyndns.org" is set to my hamachi ip)

I'm just trying to find this out because I'm unable to portforward on my router (password protected =/) So that is why I wondered about alternate non-hamachi connection methods.
I've also tried googling this but I can't find any relevant info on it.