S2S Wireguard Connection Error

Installing and Using OpenWrt
1

Hello,

I am experiencing the following issue with a Wireguard S2S connection:

Setup:

OpenWRT - 192.168.200.0/24 -> FritzBox - 192.168.178.0/24 (WG VPN server) -> Remote network OpenWRT - 192.168.1.0/24

From the remote network, I can access the FritzBox web interface via VPN, but not 192.168.200.1.

From 192.168.200.1, I cannot access the remote network at all.

The following settings (point 4.3) are configured according to the instructions at https://www.kuketz-blog.de/flash-openwrt-auf-fritzbox-4040-openwrt-teil2.

Please help, I'm stuck. Thank you very much.

2

My notes about WireGuard have a paragraph about Site-to-Site setup:

WireGuard Server Setup Guide

Important prerequisite all involved subnets have to be different.
So the subnets of all routers involved and of the WireGuard interface have to be different to function properly for bidirectional traffic.

3

Thanks for your message. The error was caused by the firewall of the remote network. I had set up special rules for the WG -> removed. Now I can access both networks from both sides. Thank you.

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