Hello, This issue is a lot worse than I initially thought, and I got no clue what is causing it. After further investigation into the issue, and observation of the interfaces the packets are passing through, the following path has been determined: server (host interface) --> router (local interface) --> router (WAN interface) --> exchange --> router (WAN interface) --> router (LAN interface) --> server (host interface) --> server (bridge interface, br0) --> LXC container (vethernet) This is seriously bad, internal packets are being leaked, and it is not a problem with a router, the router rules are set correctly. I am going to tcpdump every hop I can control and see what is going on, if anyone here knows anything about this issue please let me know ASAP! Thanks, -- Polarian GPG signature: 0770E5312238C760 Website: https://polarian.dev JID/XMPP: polarian@polarian.dev