[SOLVED] What is the use of setting IP directly on Proxmox adapter?

[CheeseRat007]

Proxmox provides us with ability to enter IP on the ethernet adapter. But while connecting that to a Linux Bridge it will complain that the ethernet adapter has IP settings. What is the use of setting IP directly on Proxmox adapter?

I have generally seen IP being applied to the Linux bridge.

Thank You.

 

[CheeseRat007]

[https://forum.proxmox.com/threads/w...com/threads/why-does-vmbr0-has-an-ip.119936/)

Looking at this ticket made me realize that with Linux Bridge, Hosts and VMs communicate internally when the VM and Proxmox has separate IP, and the packets are not forwarded outside. But what use does a eth(Network adapter) having an IP serve. I don't see an option to connect it directly to a VM.

 

[CheeseRat007]

I only way I found it useful, is to have the eth Network adapter with IP connect to a Linux Bond, which is then used to create Linux Bridge. There are 2 layers of network virtualization now. I do not know if it serves any purpose.

 

[Impact]

It can be used for the node itself. For example just for cluster traffic.

 

[cheiss]

I guess you mean in the web interface under <Node> > System > Network?
It depends very much on your general usecase and setup, but e.g. for Corosync interfaces, the address is/should also be configured directly on the physical interface.

 

[CheeseRat007]

It can be used for the node itself. For example just for cluster traffic.

How to do this?

 

[CheeseRat007]

I guess you mean in the web interface under <Node> > System > Network?
It depends very much on your general usecase and setup, but e.g. for Corosync interfaces, the address is/should also be configured directly on the physical interface.

Ok, this not done on the Web UI, but via shell right.

 

[CheeseRat007]

Found the info here: [https://pve.proxmox.com/pve-docs/ch..._adding_nodes_with_separated_cluster_network)

I believe the eth address will be put here for separate Cluster network. and if needed add extra eth port for redundancy.
[https://pve.proxmox.com/pve-docs/pvecm.1.html](https://pve.proxmox.com/pve-docs/pvecm.1.html)

Thanks guys.