I'm experiencing a rather severe issue with my virtual OpenWrt router! Currently I have 4 adapters configured for my virtual router in VirtualBox (https://prnt.sc/HttjU0NSNh3k), adapter 1 is eth0, adapter 2 is eth1 and so on.. eth3 is my wan interface device as it's bridged to my laptop wireless adapter, eth1 is my VirtualBox host only network so my laptop can access my router's services, eth0 is my VirtualBox internal network so my virtual machine's can use the router, and these all work perfectly fine, and with eth2 disabled the issue does not occur!
** Eth2 is my bridged ethernet controller which I use to connect devices such as my Raspberry Pi, or a network switch. The issue is that when this adapter is enabled in the virtual router network config (and shows up in ifconfig) then my computer seems to attempt to use the ethernet port as a wan interface or something...
- Whether or not a device is connect to my laptop via ethernet, if eth2 is enabled in the virtual router then my computer will leak requests, and if a VPN is enabled my computer will attempt to use it.
- Example of my DNS leaks, my router uses Cloudflare DNS, and my virtual router uses OpenDNS, here's a leak test with eth2 disabled (https://prnt.sc/kjodNaVA-RpK) and here's one with it enabled (https://prnt.sc/s_dN9lFDFWwf)
- My host machine is running Windows 11, I've tried changing the ethernet adapters metric from automatic to "9999" in my host machines adapter settings but the issue still occurs.
- I've considered disabling ethernet drivers on my computer, but I'd imagine this would cause it not to work for the virtual machine either. <<< (if I'm wrong about this please let me know!)
Anyone that could help me someone isolate my ethernet adapter to only communicate with the virtual machine and whatever device connect via the port, without the host communicating with the port directly. Thank you!
config interface 'loopback' option device 'lo' option proto 'static' option ipaddr '127.0.0.1' option netmask '255.0.0.0' config device option name 'br-lan' option type 'bridge' list ports 'eth0' config interface 'lan' # virtualbox host only adapter option device 'br-lan' option proto 'static' option netmask '255.255.255.0' option ipaddr '10.71.71.1' option ipv6 '0' option delegate '0' config interface 'wan' # WAN (bridged wifi adapter) option device 'eth3' option proto 'dhcp' option peerdns '0' option dns '10.71.71.1:5353' # AGH SERVER option ipv6 '0' option delegate '0' config interface 'internal_netwk' # virtualbox internal network adapter option proto 'static' option device 'eth1' option netmask '255.255.255.0' option ipaddr '10.71.72.1' option ipv6 '0' option delegate '0' config interface 'eth_control' # bridged ethernet controller option proto 'static' option device 'eth2' option netmask '255.255.255.0' option ipaddr '10.71.73.1' option ipv6 '0' option delegate '0'