OPNsense Forum

Archive => 22.1 Legacy Series => Topic started by: Kwangyai05 on September 24, 2022, 03:47:22 pm

Title: Connect to WAN IP from within LAN opnsense seems to be blocking ?
Post by: Kwangyai05 on September 24, 2022, 03:47:22 pm
Hey all,

Before switching from a plain home router to opnsense, I was able to connect to certain local services through my WAN IP. Now opnsense seems to be blocking that, which I'm sure is a good default. But now I'm wondering a couple things.

What firewall rule(s) would I put in place to get that functionality back? Suppose I'm going to sit at a LAN machine and perform a connection on a dynamic DNS hostname, which will map to the WAN IP.
Would this be considered a bad idea? A security faux paus? I admit I don't need to do this. I just sometimes check functionality from inside the LAN, but I could probably just put my laptop on a mobile hotspot and check that way instead.
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Title: Re: Connect to WAN IP from within LAN opnsense seems to be blocking ?
Post by: bartjsmit on September 25, 2022, 09:05:55 am
Even setting this up from a single IP is not fully secure. IP addresses can be spoofed which makes them an imperfect authentication method.

Set up a VPN server on OPNsense to connect to local services. That uses "proper" cryptography to authenticate you.

Bart...