Messages

1

Virtual private networks / Re: [SOLVED] Route traffic through Server and home LAN to the internet (Wireguard)

« on: April 07, 2021, 02:07:38 pm »

Thanks for the additional information!

I haven't set any DNS Server, yet. And also I haven't needed the NAT outbound rule. The firewall rule with an gateway configured is enough.
But my goal is also a bit different than the tutorial.

2

Virtual private networks / Re: [Wireguard] Route traffic through Server and home LAN to the internet

« on: April 06, 2021, 09:23:29 pm »

@Greelan Thanks for the ULA tip. Got my IPv6 working because of this.

And the main topic: I could figure it out.
I found this official tutorial: https://docs.opnsense.org/manual/how-tos/wireguard-selective-routing.html#introduction

I'm not sure, what exactly was wrong, but now it works. Many thanks! 

3

Virtual private networks / Re: [Wireguard] Route traffic through Server and home LAN to the internet

« on: April 06, 2021, 12:55:32 pm »

Thank you very much for your reply.

If you use the plugin to do the routing you should only need to set 0.0.0.0/0 as the "allowed ip" on the data center side of the config and the home config should have the datacenter subnet as "allowed ip".

The problem is, that I only want the devices which are connected to the VPN should use the Exit-Point.
The server (host) itself shouldn't use the Raspberry PI (VPN) as Exit-Node (see blue arrow in scheme).

One other way to do it in opnsense is to assign the wgX to a interface and it's own gateway, that way you could controll it a bit better.

I think I did/want that, but it doesn't work. I attached 3 images, which show the Wireguard, Interface and Gateway configuration.
Is there anything I should do differently?

4

Virtual private networks / [SOLVED] Route traffic through Server and home LAN to the internet (Wireguard)

« on: March 31, 2021, 03:44:10 pm »

Hello OPNSense-Friends,

I want to create a VPN with Wireguard to secure my devices if I'm not at home. I have a server in a datacenter, where I can connect to. But I don't want this to be the exit-point, because it has an (easy trackable) static IP. Therefore I want to route the traffic through the server, over my home LAN and then to the internet (see scheme in attachment ).

I already have the Wireguard service configured and running. I can connect my mobile phone (home-away) and my raspebrry pi (home) to the server. I can also connect from the mobile phone to the Raspberry Pi. So the VPN is working and only the routing must now be configured.

When I set a NAT outbound rule (with the WAN address), then the mobile phone connects to the internet through the server.
But I haven't figured out how I can also route the traffic from the Wireguard net through the Raspberry Pi.

I tried many things, but mostly I thought this two options should be needed:
 - Set a NAT outbound rule:  NAT Address is the Raspberry PI IP-Address
 - firewall rule: source from Wireguard-NET set a Gateway with Raspberry PI IP-Address

I have tcpdump on the Raspberry PI running, to verify that currently the traffic is not routed to the Raspberry PI.

Address Information:

Code: [Select]

  - Wireguard Subnet: 10.20.30.0/24
  - OPNSense:         10.20.30.1
  - Raspberry-PI:     10.20.30.5
  - Mobile Phone:     10.20.30.6

So basically I want to route this way:

Code: [Select]

10.20.30.6  ->  10.20.30.1  -> 10.20.30.5  -> Internet (0.0.0.0/0)

tl;dr I want a VPN network, where I can route the traffic to my home network to the internet (see diagram in attachment).

Thanks for any help!
Rs8ZOn2AL8

edit: Add IP address information