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(SOLVED) Is it normal that browsing to my own WAN-IP shows my Omada controller interface? (slrpnk.net)

submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

18 comments fedilink hide all child comments

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..

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[–] [email protected] 26 points 1 week ago (2 children)

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.

[–] [email protected] 11 points 1 week ago

Yeah ur right, i was on my LAN and thats why it worked. I only assumed because I was accessing it via my WAN IP it was 'automatically' public.

[–] [email protected] 0 points 1 week ago (2 children)

Wait what?

[–] [email protected] 15 points 1 week ago

Hairpin NAT/NAT Reflection can make the experience of visiting the WAN IP from the LAN a different one then if you do it from somewhere else. Or what is your what?

[–] [email protected] 1 points 1 week ago* (last edited 6 days ago)

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.