[SOLVED] Bridge Inside VM with firewall enabled stops communication.

[yaro014]

I have a Virtual Machine with firewall set to=1 on main interface.
When I have firewall enabled directly on that interface and it's configured inside virtual machine it works fine.
When I add it to a bridge and set IP address to a bridge (inside VM) communication with network stops.

Communication is happening over VLAN and when I have firewall on main interface disabled communication with gateway works fine either by having the nic configured with IP directly or with the bridge. Only when I enable firewall on NIC while it being configured on a bridge the communication stops.

Any ideas?

 

[spirit]

maybe is it ebtables/mac filtering related ? maybe setting a bridge inside the vm change the mac address ?

 

[yaro014]

It was exactly that.. a Mac address changed. was testing on fedora iot as guest and it behaved oddly.