Network settings to allow traffic between VMs and also in/out the proxmox server

[golivera23]

Hi,

I have installed proxmox ve 6.1-3 and have some VMs on one node (no cluster). The actual network setting is basically a bridge "vmbr0" that has the physical network card of the server configured as "Ports/Slaves".

The VMs have their own network card attached to that bridge. The proxmox's firewall is also disabled.

With this configuration I am able to have traffic in/out the proxmox server but I can't get traffic between the VMs. Do I have to create another bridge?

 

[golivera23]

I don't think it matters but vmbr0 is actually configured over a bond interface (not the physical network card). I realized that the traffic between VMs is happening but it's unstable. But I don't know where to check what's going on. If this needs further information I will post it.

 

[LnxBil]

I realized that the traffic between VMs is happening but it's unstable.

How did you come to this conclusion? Normally everythings works just fine.