I have a server and decided to go ahead and practise with Proxmox. This is the network setup I have right now:

  • Two interfaces: eth0 & eth1 (different NICs, both connected to internet)
  • Two bridges: vmbr0 (private IP: & vmbr1 (used by the VMs as exit to Internet, so no IP set, VMs are setting it - I have several public IP addresses available for this matter)
  • Gateway is

The current routes in the server:

Destination Gateway Genmask Flags Metric Ref Use Iface * U 0 0 0 vmbr0

default UG 0 0 0 vmbr0

Server connection is OK (just going through the gateway). However, I am unable to get connectivity from the VMs. VMs are using vmbr1, which has no route at this moment. I tried to add a default gw route for vmbr1 but did not succeed (SIOCADDRT: No such process). What could I be missing?

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