bitdefender firewall blocking traffic between Windows host and virtual machines

memyselfandi

I have BitDefender Total Security installed on a Win11 PC. On the PC i run GNS3 with a virtual lab network.

BitDefender is blocking communication between the VMs and the host.

BD Firewall on: ping, SNMP, ssh, etc blocked

BD Firewall off: nothing blocked

Similar issues with HyperV VMs, Windows Subsystem for Linux and Windows Subsystem for Android.

I have created exceptions for all of the GNS3 executables, dynamips, the WSL and WSA executables, but i still have to turn off the firewall to intercommunicate.

I shouldn't have to turn off my firewall entirely to communicate with VMs from my host.

Any thoughts?

Alexandru_BD

Hello @memyselfandi and welcome to the Community!

Based on your description of the situation encountered, I would recommend contacting the Technical Support Teams, as more information might be required to troubleshoot this. You can get in touch with our engineers by choosing one of the contact methods available here:

https://www.bitdefender.com/consumer/support/

Stay safe.