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VLAN: Creating a VLAN Interface on OpenBSD

Introduction

A virtual local area network, commonly called VLAN (for Virtual LAN), is an independent logical computer network. Many VLANs can coexist on the same network switch.

Configuration

Dynamique

To create a VLAN interface on the fly:

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ifconfig vlan110 create

Then assign a tag (VLAN ID) to this VLAN as well as the physical interface on which it should be created:

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ifconfig vlan110 vlan 110 vlandev sis1

And finally, assign it a specific IP address:

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ifconfig vlan110 inet 192.168.110.254 netmask 255.255.255.0

Statique

Now, to keep this configuration active when the machine restarts (/etc/hostname.vlan110):

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inet 192.168.110.254 255.255.255.0 NONE vlan 110 vlandev sis1