2012 RDS Gateway \ 2012 RDS WebAccess

Hi All,

I have a newbie question as I am from a citrix background.

I have the following setup which are all 2012R2 :

2 RDS Gateway in the DMZ
4 Session Hosts on the LAN
2 WebAccess on the LAN
2 Brokers on the LAN

Internally this is working really well and I can access the webaccess server with no issue by typing inhttps://mysite.domain.internal/rdweb

But I am not sure how to login from the internet ?

I was expecting to use a webrowser from an external PC on the intenet that hit the RDS Gateway website but this is not the case as there is no rdweb site on the Gateway server. I know the internal website ishttps://mysite.domain.internal/rdweb but how do I get to the internal Remote Apps \ Published desktops on the session hosts from external internet connection ?

Hope you can hep as racking my brain and tried Googling the answer but nothing has come up.

Regards Ivan