Ethernet can't connect internet

[luu.le]

I running Proxmox on Hetzner

install and Configure Proxmox VE like this article

https://community.hetzner.com/tutorials/install-and-configure-proxmox_ve



and there is a network bridge vmbr0









And on my Windows 11 VM, Ethernet cannot connect to the internet



How can I fix it, hope someone can help me

 

[Muhammad Yaseen Rasheed]

Hey luu.le,

It may seems that your issue this related to the virtual bridge vmbr0, in which there is no way to direct your internal guest network to the outside.

I would suggest to do the following:

1. Modify the vmbr0 portion in the configuration file /etc/network/interfaces
2. Uncomment the following lines:
   
   
   

3. At the vmbr0 portion change the bridge-ports from none to enp35s0 , then add a gateway line as following:

auto vmbr0​

iface vmbr0 inet static​

address <your-static-ip>/<network-mask>​

gateway <your-router-ip>​

bridge-ports enp35s0​

bridge-stp off​

bridge-fd 0​

​

Hope this modification will work..
Peace

 

[luu.le]

Hi @Muhammad Yaseen Rasheed

Thank you for your attention, I have updated as instructed
Example of the Host Configuration in Bridged Setup in the attached article,

but it doesn't work, you can see the information I shared here, because I'm new to it so I don't understand what problem I'm facing, what do I need to fix so that my Vm windows can connect to the internet via bridge


Hope you will help

 

[Muhammad Yaseen Rasheed]

Could you please take a snapshot for the hardware of your Windows? especially the network adapter. I suspect you went for default bus which is virtIO

 

[luu.le]

This is information about my current Windows hardware

@Muhammad Yaseen Rasheed

 

[bobmc]

I think your main issue is that you have the server nic (enp3s0) bridged to vmbr0 - this is not correct. The hetner docs have this

auto vmbr0
iface vmbr0 inet static
address <main IPv4 address>/32
bridge-ports none
bridge-stp off
bridge-fd 0

This setup relies on routing being enabled on the pve host to direct traffic from the internal vm's attached to vmbr0 out to the internet via the physical connection on enp3s0

Also, do you really have a /26 IP allocation? that's 62 useable ip addresses so that won't be cheap

 

[luu.le]

I hope someone can help me with this, I've been stuck with this problem for a long time, I can't find the reason why it is happening, I have configured as the Hetzner documentation instructs

https://community.hetzner.com/tutorials/install-and-configure-proxmox_ve

All Vm's (Windows, Linux) I run cannot connect to the internet,