No network-connectivity from moved PBS on PVE

[basstscho]

I have a strange symptom, which can belong to the pve or pbs.
We moved a virtual pbs from an esxi host to a pve 8.2 host. On this host there are already several VMs. All of them work fine. Unfortunately I don't get the network connection running from the moved pbs. It has two network interfaces: One on VLAN 100 and another on VLAN 16. The PVE itself is also on VLAN 100 (and 16).

Network-Config PVE:


Config pbs-is VM:


The pve can reach all "external" hosts in the 10.10.100.0/24 subnet. Also other VMs on the host with a VLAN 100 interface can reach the PVE and "external" hosts. So it has to be an issue within the pbs itself, or the vm-config of the pve. After moving the vm from exsi to proxmox I had to change in the /etc/network/interfaces the interface names and rebooted. IPs are assigned well and everything looks fine for me. But a ping doesn't reach it's destination.



In the last days I moved over 50 VMs from ESXI to PVE-hosts. Most of them were debian and after renaming the interfaces in the /etc/network/interfaces everything worked well. Do I overlook something or is there something specical with the pbs networkconfiguration?

Thank you and best,
Johannes

 

[mram]

Please post the PBS /etc/network/interfaces file.

 

[basstscho]

It has not to many lines

auto lo
iface lo inet loopback

auto ens18
iface ens18 inet static
        address 10.10.100.230/24
        gateway 10.10.100.1
#management

auto ens19
iface ens19 inet static
        address 192.168.16.202/24
#storage

 

[basstscho]

I recognized, that the connection from other VMs to VLAN 100 was not always stable and played arround on a test server. I'm not sure why, but it looks like it did the trick: Connecting the Linux VLAN (VLAN raw device) to vmbr0 and not to bond0. Maybe somebody has a technical explenation for that?!