Post #2843536

2026-05-18 10:33 UTC

I was pumped to finally get decent Internet in the US, until I saw my ISP’s router appears as a device on the LAN. Luckily I’m savvy enough to put the whole local network behind a firewall on a different subnet, since there’s no other way of fixing this.

Replies (1)

@jjlinux@lemmy.zip 2026-05-18 10:54

It’s not just US ISPs, this is worldwide behavior. Good on you to put a firewall between your network and your ISP’s gateway. I don’t know if you went further than that, bit in my case, once I had my OPNSense deployed, I went ahead and disabled all the radios of the ISP’s ONT gateway, changed it’s DNS server to Mullvad, and only left 1 LAN IP address to the OPNSense. If you are aware of more things that can be done to give the ISP modem even less room to move around inside, I would appreciate you sharing it as well. I wish more people would take the time to learn a bit about securing their home networks. What I do is that I offer my knowledge for free to neighbors, friends and family. Some actually want it and act on it, but the sad truth is that the vast majority still has this ‘I have nothing to hide’ mentality, and I’m not explaining how much marketing BS that is to them for the 100th time.

Open ##2845152