Hi there, been working on my selfhosted setup a bit lately and just noticed that if I browse to my own WAN-IP it will show to the public the interfance of my oc200 omada hardware controller. While it does have a login form with username password, id be much more confident if this wasnt public at all. I’ve looked online and in my settings but struggle to find anything related to this. Is it common that this is on be default?
Any pointers greatly appriciated.
Edit: Solved - I panicked without thinking I was on my own lan when checking this…
First off, check that it is also true when using a device outside the LAN. Easiest would be to check with your phone with wifi off. You probably won’t get to the login.
If you do then it’s time to check firewall settings.
NAT loopback, if supported and enabled, may appear to bypass firewall rules.
Basically, traffic to your public (WAN) IP that comes from inside the network is not subject to the same level of security as outside traffic would be. The last part of the parent comment didn’t quite make sense, though.
I know you solved it but for anyone that finds this later this feature/behavior is typically called “NAT Hairpin” in case you are looking for a setting to enable or disable, hope this helps!
Can you access your wan ip when you are somewhere else than on your own lan?
If not, then this is probably just that your router does firewalling and nat is such order that you can access admin interface from local network via wan address.
If yes, then router has some serious misconfiguration.
Are you browsing from outside your local network?
No I wasnt… just realised this, thats a great relief really. Was afraid it had been publicly available all this time.
Learn something new every day :)
Do you see that only when you’re on the LAN or also when you’re coming in from WAN?
Ah yeah you’re right, i can only access this interface if I am on my LAN. Tried with hotspot now and it doesn’t “load” - so thats good.
