VM network interfaces configuration Windows / Linux

[sysbitnet]

Hi,

I have problem to my Windows VM has no have internet.

On Proxmox ==> Network i create vmbr0 , vmbr1, vmbr2, with 3 static public IP xxx.sss.www.qqq/24 and any of this when i ping i get replay.

But when set in VM Netwrork interface on of this that machine not have access on internet, if i try to set static IP on inside VM network interface.

Can anyone tell where are we wrong in steps ?

Thank you

 

[bobmc]

A lot depends on the your exact setup so it's hard to generalise

some pointers here
https://pve.proxmox.com/wiki/Network_Configuration

 

[sysbitnet]

I fix the problem what i have, but maybe someone have better idea.

OPTIONS #1
On image Network-Proxmox-Virtual-Environment.png i have only one virtual bridge interface vmbr0 like main with public main IP with gateway.

And for any of VM configuration i use vmbr0 .
Of any VM netwrork card i setup new one static IP with gateway from vmbr0 public DNS and that work. Network interface have internet and work fine.


OPTIONS #2
But i create for for each of static ip new virtual bridge like what you can see on image Network-1-Proxmox-Virtual-Environment.png
and if I setup to use a different vmbr interface for each machine as you can see on image VM-Network-1-Proxmox-Virtual-Environment.png
VM machine not have access on internet if i configure network cards on VM.

Where I'm do wrong on OPTIONS#2 ?

Thank you

 

[sysbitnet]

If you need ping replay from outside you need to configure a firewall in Windows VM, For Linux no need to do that in basic installation.

 

[sysbitnet]

Many people here have a Single Physical interface with multi IP addresses on different IP rage pools.

Here are solutions to get and what works on public IP

Open /# nano etc/network/interfaces and edit configuration.

auto lo
iface lo inet loopback

auto enp3s0f0
iface enp3s0f0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.0.100/24
        gateway 192.168.0.253
        bridge-ports enp3s0f0
        bridge-stp off
        bridge-fd 0

iface vmbr0 inet static
        address 192.168.1.100/24
        gateway 192.168.1.1

enp3s0f0 - This is Network physical card interface name in my case
vmbr0 - This is the virtual bridge interface name

On the second vmbr0 interface you do not need to have an address like a primary parameter.

From someone's data center you need to add Vlan Tag on VM or CT interface !!!

 

[sysbitnet]

In typical logical situations, you just need to have on the main physical interface a single static IP address with /32 for access and manage the node.

If you have more static IP on that node, the best way to setup static IP address for ich one direct on network card using the same main interface with new static IP with /32

When you create VM you need to do the same, just direct in network interface depending on the operating systems.