this post was submitted on 17 Oct 2023
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Easiest way to achieve 2 LANs, one of which is connected to a VPN (alien.top)
submitted 2 years ago by DetroitRedLigers@alien.top to c/main@selfhosted.forum
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Ill preface by saying im far from a networking expert. Right now I just have a normal setup of modem->router where router has a 2.4ghz and 5ghz channel. Everything in my house connects to one of these through wifi other than my home server which is wired to the router. What I want instead is 2 seperate LANs. One LAN is completely normal and exactly what I have right now and the second will be connected to mullvad VPN. These 2 networks do not need to be able to talk to each other.

Is this possible?

I currently have a Netgear Nighthawk R8500 router which is not compatible with openwrt. A couple options ive thought that may work (could be wrong about all of them):

  1. Buy a network card and add it to my server and add an openwrt container in proxmox so I could have 2 different routers (existing router still up for normal stuff + openwrt container for VPN connected LAN)

  2. Buy a new router that supports openwrt and split into 2 VLANs in which case maybe I could install the VPN on one of the VLANs?

  3. pFsense as a proxmox container could potentially do this? I have not used pfSense much so im not sure if it could and even if it could I think it may be overkill?

I basically just want to know what you think the lightest and simplest way to get this done would be.

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[–] AnApexBread@alien.top 1 points 2 years ago

Two questions upfront.

  1. Does your Netgear router support being a VPN client?
  2. Does it have a guest mode?

If the answer to both of those is yes then you could consider using the guest mode as your VPN network.

If not then your best option is probably 2. You could get a router which supports OpenWRT or use a different enterprise style router like pfsense.

I the same thing you're asking about in pfsense where I routed one VLAN over a VPN while leaving my main LAN completely normal.

https://blog.gravitywall.net/2022/03/02/routing-specific-vlans-over-a-privacy-vpn-with-pfsense-2-6-0/