Two ether2 for the Mikrotik VM


May 29, 2020
Hi. I don't know if a problem related to Proxmox or Mikrotik ROS 7. So, bear with me please. I am still trying to figure it out.

I setup a Mikrotik ROS VM in Proxmox which has two network cards.
The MK VM gets an IP via vmbr0 from my physical HOME LAN router. This IP also happens to be the WAN IP for ether1 port in the MK device.
I then created linux bridge vmbr1 as the LAN side of the Mikrotik VM to which are connected a Windows VM running in Proxmox, and a physical machine (a laptop)
to the ethernet port enp5s1 which is part of the linux bridge vmbr1

Proxmox network setup:


the Mikrotik network setup:


is the Mk WAN port, net1 the virtual interface connected to vmbr1, and net2 is the physical port, member of the linux bridge vmbr1 too.

I then created a bridge in Mikrotik and added ether2 and ether3 to it (for the record, I did it not at the same moment).
I expected the two machines (the VM and the laptop) to be connected to two different port: ether2 and ether3 respectively, but it seems not to be the case, even though they have different IPs and MACs, and the network works regularly

Anyway, I am wondering why this happened.



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