Routed Network Clarification

Aug 19, 2023
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Hello,

I'm trying to get some clarification on leveraging a routed setup in my environment. While I get the concept and benefits of routed versus bridged, the one part that isn't clear through the documentation is how migrations are handled with IPs. The IPs could be public or private honestly, so I don't feel that has the highest weight in the discussion. Here is the high-level layout.

Rack 1:
Proxmox hosts/other physical hosts get a 192.168.2.0/26
Proxmox VM's 192.168.3.0/24

So, in routed mode, how would a VM migration work with a IP of 192.168.3.10 from a host on 192.168.2.20 to host 192.168.2.19, assuming they are already clustered together?
 
As long as all PVE nodes have access to both the 192.168.3.0/24 and 192.168.2.0/26 networks using similarly named network adapters/bridges, it should not be an issue.

Easiest to setup if all ProxMox nodes are the exact same config. but not hard to do even if they are not.
 
As long as all PVE nodes have access to both the 192.168.3.0/24 and 192.168.2.0/26 networks using similarly named network adapters/bridges, it should not be an issue.

Easiest to setup if all ProxMox nodes are the exact same config. but not hard to do even if they are not.
Sounds like if a VLAN aware interface set was being used that could potentially become problematic then?
 

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