Sorry for the noob question..

I have somedomain.com registered at bulkregister and they offer free dns forwarding, so I wanna point somedomain.com to my ip address with port specified aswell, i.e. 123.123.123.123:9999
But dns forwarding I believe can only point to an ip address. Preferably I would like someserver.somedomain.com but I don't think BR allows for subdomains?

Any free services out there that will allow for something like this?

Thanks

You can't have have a DNS entry with a port, just an IP. Lots of stuff that isn't TCP or UDP runs over IP and doesn't use ports. Even if you could, there is nothing stating what that port would be for.