Finally making the jump to a custom router so I can have all my outgoing traffic over mullvad but that brings with it two questions for me

b3_k1nd_rw1nd
2025-12-07T01:39:00Z

Changing Mullvad server at router level

Reddit is becoming increasingly more and more hostile to VPN connections to the point where I often get the "whoa pardner" error message and have to try 4-5 different VPN servers on my desktop or phone before I finally get one to work with Reddit. Same thing sometimes with Google/YT, it keeps asking me to prove I am not a bot and a bit of experimentation with the servers gets me through.

This makes me wonder, is it as easy to switch my Mullvad server on OPNsense? I get the sense from the YT videos I have watched, I have to effectively setup an entry for every Mullvad router as separate instance on my OPNsense' VPN WireGuard settings and toggle which instance is being used at the router level?
I know I can technically have Mullvad on my router to hide all my traffic and then on all my devices that I use Reddit on, I can additionally have Mullvad on them too and play with the servers I am connected to on my device specifically until I find one that works but I am curious what the workflow is if I choose to do all my Mullvad related configs at the router level.

Making custom block?

I have a love-hate relationship with Reddit. On one hand, I can't deny that certain subreddits are useful as someone in tech, but I also can't deny that certain subs are just a time-sink and some subs are just toxic (looking at you AITA). I can often prevent myself from browsing the time-sink/toxic ones but sometimes I lose myself in them and I am in search of a way to block them via Mullvad at my router. Obviously a DNS-block won't work if I want to block reddit.com (the home page) and certain specific subreddits but leave any other tech related subreddits open for me to read so the next best thing I assume is some kind of firewall? But I don't know if such a firewall exists that can basically start doing regex on a URL to see if it should be accessible from within the network? Which makes me wonder if I can create my own firewall but I don't even know the first step, as in would this be something that integrates with OPNsense, or a stand-alone program I have to create myself? I know Python, Java and have some basic knowledge of C++ but don't even know if those are the language I need to know to create such a filter or if the filter I am looking for is even possible? Any and all pointers welcome.

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