How to connect two wireguard clients

[shinra]

Hello,
In my house, I have a GL.iNet Flint router with the address 192.168.8.1. I configured a WireGuard server on it. I connected to the VPN from my phone and from another GL.iNet Opal router that have the address 192.168.12.1. Everything works well. What I want now is to be able to access my Opal router from my phone when I am connected to the VPN. basicly my iphone and opal routeur is connected the Flint router wirguard server .
this is a diagram of what I want to establis

[bruce]

Hi,

According to your requirements, I assume the iPhone can try to access the Opal router via the WG network:

1. Enable the remote LAN access in the Opal:
   

2. Add custom route rule in the Flint and configure the profile of your iPhone:
   Accessing Client LAN from Server(WireGuard) - GL.iNet Router Docs 4

[shinra]

Hello,
I already have that option enabled, but I can't connect to the Opal router from my iPhone. I believe this option allows the WireGuard client to connect to the WireGuard server router, and it works fine. However, as I mentioned, I want to connect the two WireGuard clients directly.
And also I have already added a rule in Flint server with : Targer address : 192.168.12.0/24 and Gatway 10.0.0.4

[bruce]

If only require accessing the WEB of Opal, just access WG IP is ok (The premise is that the WG connection is normal), and does not require to configure the custom route rule, as the custom route rule is for access the router LAN clients.

Please step by step to check your WG network:

1. in Flint SSH or Luci, ping 10.0.0.4 (phone) and ping 10.0.0.3(Opal)
2. If 1 works, in Opal, ping 10.0.0.4 (phone)

[shinra]

The 1 setp it works, from my flint i can ping 10.0.0.3 and 10.0.0.4
but the 2 step don't work

[bruce]

@shinra

ping 10.0.0.3 and 10.0.0.3

ping 10.0.0.3 and 10.0.0.4?

So can the phone access the 10.0.0.3 router WebUI ?

[shinra]

no, I can ping 10.0.0.3 and 10.0.0.4 from my Flint router
but from the Opal I can't ping 10.0.0.4

[bruce]

Can the phone access the 10.0.0.3 router WebUI in the browser APP?

Can the phone ping the 10.0.0.4 in the APP 'Net Analyzer'?

[shinra]

the phone can't access the 10.0.0.3 webUI.
from the Net Analyzer app, I pinged 10.0.0.4 and also 10.0.0.3 no results
from my phone I can acess the Flint router without any issue (10.0.0.1 or 192.168.8.1), but as I said i want to access th webUI of the Opal router from my phone

[bruce]

Please modify the 'Forward' as 'accept'.

[shinra]

Great it’s working now, thank you