How does accessing services on lxc containers work?

I have currently been wanting to learn about containers and have been starting to read documentation over the last couple days. I setup a Ubuntu 15.10 host and started creating unprivileged lxc containers on the host. My question is how exactly does accessing ports/services on those containers work? I have seen examples of forwarding ports from the physical host to the specific IP of the container on that host. But i have setup networking a little differently so that there is no NAT involved. Here is how my networking is setup:

LXC Network Configuration: http://pastebin.com/jfsdewWx