## tun

tun — Tunnel Settings

## Properties

Table 101.

Key Name | Value Type | Default Value | Value Description
--- | --- | --- | ---

    group

    string

The group ID which will own the device. If set to NULL everyone will be able to use the device.

    mode

    uint32

    1

The operating mode of the virtual device. Allowed values are NM_SETTING_TUN_MODE_TUN (1) to create a layer 3 device and NM_SETTING_TUN_MODE_TAP (2) to create an Ethernet-like layer 2 one.

    multi-queue

    boolean

    FALSE

If the property is set to TRUE, the interface will support multiple file descriptors (queues) to parallelize packet sending or receiving. Otherwise, the interface will only support a single queue.

    owner

    string

The user ID which will own the device. If set to NULL everyone will be able to use the device.

    pi

    boolean

    FALSE

If TRUE the interface will prepend a 4 byte header describing the physical interface to the packets.

    vnet-hdr

    boolean

    FALSE

If TRUE the IFF_VNET_HDR the tunnel packets will include a virtio network header.