Multiple VMs need to speak to each other and surf out with 1 NIC

[taken1]

Hello new user to proxmox here.

I would like to know how I can set up a static IP for each VM and get my VMs to speak to each other and to surf out with 1 NIC.

I've been reading threads and reading Proxmox network config guides but still a little unsure how I would go on about setting this up.

I have one of the VM setup as e1000=BC:24:11:17:BB:49, bridge=vmbr0 and one my Windows 10 VM, bridge is set to vmbr0. Also, my other VMs are also set to bridge=vmbr0.

Please advise and appreciate your help.

 

[pkey]

Sure its not simply the WIndows Firewall? Sometimes even Ping is blocked through network.
https://superuser.com/questions/1683853/cannot-ping-a-windows-11-machine (works with Windows 10 as well)
The vmbr0 bridge should speak with each other per default, as long as the Proxmox firewall is running in its default settings.

 

[taken1]

Thanks for the link. I'm going to try and do that now on my windows vm

 

[taken1]

I enabled the ICMP requests and ran the CMD to allows pings through the fw but I'm still unable to connect.

 

[taken1]

I checked my IP and it is in the correct subnet and gateway is correct. I used primary DNS as 8.8.8.8 and alternate as 1.1.1.1

 

[taken1]

I've also tried disabling firewall at the pve01 level but still nothing. Is there anything else I should try?

 

[pkey]

You can also try to change the network interface from e1000 to VirtIO. The performance is also better with it.
For this you need latest QEMU driver: https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md#downloads
For VM chose Latest virtio-win-guest-tools.exe

 

[taken1]

changed it to VirtIO but still nothing

 

[pkey]

Did you have the latest updates and have try it after reboot the Host?

 

[taken1]

I changed it back to E1000 because ethernet was not showing up.

The latest updates on win10 vm correct?

 

[pkey]

The latest update on Proxmox as well
Sometimes you need a fresh reboot, when problems get strange.

What Host you are running on?
Could you provide more details?

 

[taken1]

windows 10 update is all up to date. It's weird. I checked the ethernet status and packets are being sent and received..

 

[taken1]

I am running on Debian 12 bookworm. It's a Windows 10 pro vm.

 

[pkey]

I mean the hardware you running Proxmox on.

 

[taken1]

sorry about that. I'm trying to upload some screenshots but it's too large.

CPU - Intel xeon E5-1620 v4 @3.5GHz x8
mem: 31.3 GiB
GPU NV137

 

[taken1]

I did the latest upgrade on Proxmox just now as well