The Main router is what exactly? a 3 in one (Modem, router/switch, Wifi access point)?
How is the Internet Service Provider bring internet to the house?(physical cable, WiFi or cellular network)
What is running on the main router for Operating System?
If you are prepared to sacrifice wifi, then add the Brume 2 behind your main router with its WAN port connected to a main router LAN port, To set up the Brume 2, follow the GL.iNet documentation in the link I provided. All your LAN devices are to be attached to the Brume 2 and none on the ISP, except for the Brume 2.
By connecting it this way, I will be able to get 100% of the Brume 2 performance, right? I mean that I will be able to use all its features without any problems…
Yes, you should because the main router is not really doing much. For VPN server, port forwarding has to be set up the main router has to send incoming traffic to the Brume 2.
In my network, I have a non-GL.iNet router behind the ISP cable modem/router and I am happy with the way the setup works. I did not even bother bridging the ISP device, so I get 2 layers of firewall.
Yes, you can put the Brume 2 in front of the main router, since your ISP connection is not over coaxial cable like mine. For your fiber Internet connection, you have to fiddle with the VLAN configuration to work with the ONT, according to your ISP.
After you get connected to the Internet, you can try redeploying the main router as a wifi access point, but it all depends on its capabilities.
I do not know Portmaster + SPN and whether it is available on OpenWRT.
I thought you had a separate ONT and router, which is what some people have for fiber Internet.
If the ONT and router are in one main device, then you cannot add the Brume 2 in front of it. When you connect the WAN port to the LAN port of that device, the Brume 2 will be behind it.
I have tested the Brume 2 and a non-GL.iNet router behind my ISP cable model/router and I get the full speed of my cable Internet connection, which is 700Mbps download.
You can check if your ISP device can be bridged, which should eliminate any noticeable speed degradation.
I think you need to use the Drop-in Gateway feature.
When this feature is working, your clients can connect to the Wi-Fi and network ports of the main route, but they will forward traffic through the VPN on Brume2.
Please note that Drop-in Gateway in version 4.1 tends to cause instability in internet telephony, video conferencing, and online gaming. If this affects you, please upgrade to version 4.2.
On 4.2 beta, this feature is a little more difficult to set up. You will need to turn off DHCP on your main route, please follow the guidance on UI.
Connecting as you say (@yuxin.zou), I could use Brume 2 as VPN client + AdGuard Home, right?
In my case, and for my intended use, what is the difference between the Brume 2 and Flint? From what little I have read, both come with the same configuration options (VPN, AdGuard Home, Tor…), although the Flint comes with more LAN ports and has WiFi. The hardware of the Brume 2 is better too.
If I buy the Flint, I should also connect it in Drop-in Gateway mode? Obviously, I would like to use the Flint as VPN Server + AdGuard Home (and WiFi?). If I could use the Flint own WiFi it would surely be better than using my own router’s, I guess, right?
Yes, and it can be overridden to all client devices connected to your main router.
I think Brume2 is better suited to adding VPN and other features to your home network without replacing your main router. It has 8GB of storage space so you can also install more third party plugins. Flint, on the other hand, is better suited as your main router and it doesn’t require Drop-in Gateway mode.
Which one is better depends on your actual needs. There is no difference in VPN and AdGuard Home functionality between the two methods.
Brume2 as a Drop-in Gateway will increase latency slightly and is not recommended for gamers.
Flint does not currently have Mesh (seamless roaming) and is not specifically adapted for IPTV. if you don’t need them, you may consider using it as your main router.