# VLAN setup with single NIC per server?

**URL:** <https://forums.suse.com/t/vlan-setup-with-single-nic-per-server/36398>\
**Category:** SUSE Virtualization\
**Created:** [December 7, 2021, 3:34pm UTC](https://forums.suse.com/t/vlan-setup-with-single-nic-per-server/36398 "2021-12-07T15:34:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![meysholdt](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/meysholdt/32/8364_2.png) [@meysholdt](https://forums.suse.com/u/meysholdt)\
**Post date:** [December 7, 2021, 3:34pm UTC](https://forums.suse.com/t/vlan-setup-with-single-nic-per-server/36398/1 "2021-12-07T15:34:20Z")

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Hello!

our servers [receive VLAN traffic over their main NIC](https://docs.hetzner.com/robot/dedicated-server/network/vswitch/#traffic).

Is this supported and what’s the recommended configuration to make this work?

We’ve configured the harvester-management NIC under Advances-\>Settings-\>VLAN and Hosts-\>harvester0-\>network. And we’ve created a VLAN under Advances-\>Settings-\>Networks.

However, with this config, the harvester cluster becomes unreachable in the moment when a VM boots that make use of the VLAN. We assume booting the VM applies some kind of config to the NIC that prevents management traffic from going through.

Are we doing something wrong? Is this [a bug](https://github.com/harvester/harvester/issues/1541)?

Your help is very much appreciated!

We’re on Harvester 0.3.0 and tried to upgrade to 1.0.0-rc but the installer freezes shortly after booting.