can I use two different subnets with one NIC?

[mathematics28]

Hi Everyone,

So, I have 1 NIC in my machine, and I would like my windows VM inside of TrueNAS scale to use a different subnet and vlan than the TrueNAS server. Is this possible? Reason is I would like to use the VM for work and don't want them to be able to snoop. I would have to switch my switch port file to have all subnets on it, but that's as far as I figured so far (or new profile with just 2 subnets). Thanks!

 

[Arwen]

You likely want tagged VLANs. You can then use 2 virtual network interfaces, each in a different sub-net / VLAN.

This requires network switch support. Others here might have more details, I don't use that feature.


Using over-layed sub-nets, (quick, cheap multiple sub-nets on same NIC), does allow snooping to some degree.

 

[mathematics28]

You likely want tagged VLANs. You can then use 2 virtual network interfaces, each in a different sub-net / VLAN.

This requires network switch support. Others here might have more details, I don't use that feature.


Using over-layed sub-nets, (quick, cheap multiple sub-nets on same NIC), does allow snooping to some degree.

True, but I am guessing that the NIC would have to be able to use tagged VLANS? Not really sure how that works. Tagging them in the switch is the easy part. Else I could just use another NIC with a different subnet for the VM.

 

[Patrick M. Hausen]

Just add VLAN interfaces in the network interfaces menu ... TrueNAS is perfectly capable of 802.1q.

 

[mathematics28]

Just add VLAN interfaces in the network interfaces menu ... TrueNAS is perfectly capable of 802.1q.

That is a beautiful thing. Had no idea. Thank you Patrick!