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lxc:profiles:create_a_macvlan_profile

LXC - Profiles - Create a macvlan profile

Create the macvlan manually

lxc profile create macvlan

returns:

Profile macvlan created

List the profiles

lxc profile list

returns:

+------------+---------+
| NAME       | USED BY |
+------------+---------+
| default    | 3       |
+------------+---------+
| macvlan    | 0       |
+------------+---------+

NOTE: This now shows the newly created macvlan profile as well.


Show default settings of the new profile

lxc profile show macvlan

returns:

config: {}
description: ""
devices: {}
name: macvlan
used_by: []

Determine Default Network Route

Determine the default IP network on the host.

ip route show default 0.0.0.0/0

returns:

default via 192.168.1.1 dev br0 proto static

NOTE: This shows the default Network Device is br0.


Add the Network Device to the macvlan LXD profile

lxc profile device add macvlan eth0 nic nictype=macvlan parent=br0

returns:

Device eth0 added to macvlan

NOTE: The changes are:

  • eth0 is added as the network interface for LXC.
  • nictype is set to macvlan
  • parent is set to br0.

Display details of the new macvlan profile

lxc profile show macvlan

returns:

config: {}
description: ""
devices:
  eth0:
    nictype: macvlan
    parent: br0
    type: nic
name: macvlan
used_by: []

All Done!

Any containers created using this new profile will get an IP address from the DHCP server of the LAN.

WARNING: By using macvlan, your computer’s network interface will appear on the network to have more than one MAC address.

This is fine for Ethernet networks.

However, if your interface is a Wireless interface (with security like WPA/WPA2), then the access point will reject any other MAC addresses coming from your computer.

Therefore, all these will not work in that specific case.

NOTE: If your host is in a virtual machine, then it is likely that the VM software will block the DHCP requests of the containers.

To overcome this, configure the host virtual machine to allow Promiscuous mode, usually found in Network settings.

Alternatively, try to use a bridgeprofile.


lxc/profiles/create_a_macvlan_profile.txt · Last modified: 2021/01/07 16:22 by peter

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