VLAN

2015-12-22T06:23:27Z

Captaindave: A much more thorough example, giving the reader a template from which to remove unneeded functionality.

This article shows how to configure a network interface as an IEEE 802.1q VLAN trunk.

__TOC__

{{Note| Alpine Linux v2.4 or later is required}}
==Installation==
First, install the ''vlan'' package. This will give you support for vlans in the ''/etc/network/interfaces'' file.
{{Cmd|apk add vlan}}

==Configuration==
Edit the ''/etc/network/interfaces'' file:
<pre>
auto eth0.8
iface eth0.8 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.1
</pre>
With the ''vlan'' package installed ifup will find the trailing .8 in eth0.8 and will create a vlan interface with vid 8 over eth0.

Alternative with vlan8 over eth0:
<pre>
auto vlan8
iface vlan8 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.1
vlan-raw-device eth0
</pre>

In those examples a static ip address was used but it works with dhcp as well.

== Example with bridges associated with VLANs over bonding with differing MTUs on the various VLANs ==
This serves as an example of some of the more complicated networking possible. Particularly, this would work well for a hypervisor attached to a dedicated storage VLAN. Less complicated implementations can be achieved by merely excising those parts inapplicable.
<pre>
auto lo
iface lo inet loopback

auto bond0
iface bond0 inet manual
bond_slaves eth0 eth1
bond_mode 802.3ad
bond_miimon 100
bond_xmit_hash_policy layer2+3
post-up ip link set dev bond0 mtu 9000

iface bond0.1 inet manual

auto br1
iface br1 inet static
address 192.168.1.196
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports bond0.1
bridge_stp off
bridge_fd 0.0
post-up ip link set dev bond0.1 mtu 1500

iface bond0.10 inet manual

auto br10
iface br10 inet static
address 192.168.10.1
netmask 255.255.255.0
bridge_ports bond0.10
bridge_stp off
bridge_fd 0.0
</pre>

[[Category:Networking]]

VLAN

2015-12-21T16:34:30Z

Captaindave: Got rid of configuration that would throw errors on boot; added per-VLAN MTU changes for purposes of illustration

This article shows how to configure a network interface as an IEEE 802.1q VLAN trunk.

__TOC__

{{Note| Alpine Linux v2.4 or later is required}}
==Installation==
First, install the ''vlan'' package. This will give you support for vlans in the ''/etc/network/interfaces'' file.
{{Cmd|apk add vlan}}

==Configuration==
Edit the ''/etc/network/interfaces'' file:
<pre>
auto eth0.8
iface eth0.8 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.1
</pre>
With the ''vlan'' package installed ifup will find the trailing .8 in eth0.8 and will create a vlan interface with vid 8 over eth0.

Alternative with vlan8 over eth0:
<pre>
auto vlan8
iface vlan8 inet static
address 192.168.0.2
netmask 255.255.255.0
gateway 192.168.0.1
vlan-raw-device eth0
</pre>

In those examples a static ip address was used but it works with dhcp as well.

== Example with vlans over bonding with differing MTUs on the various VLANs ==
In this example we will [[Bonding|bond]] eth1 and eth2 interfaces and create vlan trunks with vid 8, 64 and 96. The gateway (ISP) is on eth0.
<pre>
auto eth0
iface eth0 inet dhcp

auto bond0
# use manual because the bond0 interface should not have any ip.
# set your largest MTU here.
iface bond0 inet manual
bond-slaves eth1 eth2
post-up ip link set dev bond0 mtu 9000

# uses "default" MTU of 9000
auto bond0.8
iface bond0.8 inet static
address 10.65.8.1
netmask 255.255.255.0

# uses standard MTU of 1500
auto bond0.64
iface bond0.64 inet static
address 10.65.64.1
netmask 255.255.255.0
mtu 1500

auto bond0.96
iface bond0.96 inet static
address 10.65.96.1
netmask 255.255.255.0

</pre>

[[Category:Networking]]

Alpine Linux - User contributions [en]

VLAN

VLAN