I've encountered an issue in my envioronment using internal network. I've got two vms connected to the internal network. One of the vms has linux bridge running. This bridge has vms internal network interface connected and interface of linux namespace connected. Both second vm and namespace Have addresses from same subnet. When I send ping either from namespace to vm or vice versa, arp requests are being forwarded via internal network but replays dont. I see that vm or namespace are replaying on tcpdump but The replays are not forwarded via intnet . Can someone explain how internal network's vswitch works ? I attach the environment sketch.
PS. This happens on Both linux nad Windows hosts. I've got firewall stopped on Both guest oses.
Thank you in advance, Wojtek