well, your settings look right. Have you tried it? You should be able to access it though your public IP address.
Make sure you have a really good password on that, and keep your BIOS updated.
I have tried it, if firewall is enabled, I can't access trough wan, example : http://22.214.171.124:8080,
if firewall is disabled, I can access, but my access rules is also disabled. I have good password (12 character), I have update new firmware.
thanks, for you respond.