Windows VMs with SNAT and DHCP recognizing new networks on each reboot

[Urxus]

I'm encountering an issue with my Windows guests. After every reboot, they report connecting to a new network. I suspect this happens because the MAC address of the gateway changes with each restart.

I followed the guide on the Proxmox wiki for creating a simple zone with SNAT and DHCP https://pve.proxmox.com/wiki/Setup_Simple_Zone_With_SNAT_and_DHCP:

• I've set up a simple zone under SDN, with IPAM set to pve
• I've created a vnet and a subnet
• I'm unable to find a way to set a static MAC address for the gateway, either through the GUI or CLI
• I've tried adding the line hwaddress ether 00:11:22:33:44:55 to /etc/network/interfaces.d/sdn but to no avail

Is there a way to solve this issue within a simple zone, or should I consider different types of zones?
Thanks in advance for your help.

 

[spirit]

Hi,

as workaround, you can add in /etc/network/interfaces

iface <vnet>
     hwaddress <mac>

I'll be merged with the generated sdn configuratoin

 

[Urxus]

Thank you,
I tried again adding hwaddress ether 00:11:22:33:44:55 to /etc/network/interfaces.d/sdn. This time it worked as expected.
I may have overlooked something in my first attempt.