Configuring VLANs on Debian

[Aerosol]

This will be the shortest tut made by me because need only few changes. On the begin we will install VLAN packet. This will be done using command:

# apt-get install vlan -y

After this we will load 8021q module into the kernel using command;

# sh -c 'grep -q 8021q /etc/modules || echo 8021q >> /etc/modules'

Now the only thing required is to add VLANs into the /etc/network/interfaces file as next example:

auto eth1
iface eth1 inet static
address 192.168.0.101
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.254
dns-nameserver 8.8.8.8

# VLAN 69
auto vlan69
iface vlan69 inet static
address 172.16.69.25
netmask 255.255.255.248
network 172.16.69.24
broadcast 172.16.69.31
vlan_raw_device eth2

# VLAN 96
auto vlan96
iface vlan96 inet static
address 10.10.96.1
netmask 255.255.255.0
network 10.10.96.0
broadcast 10.10.96.255
mtu 1500
vlan_raw_device eth2

Now for the job to be done we will restart networking and all will be done

# /etc/init.d/networking restart

* Reconfiguring network interfaces...
ssh start/running, process 1400

Set name-type for VLAN subsystem. Should be visible in /proc/net/vlan/config
Added VLAN with VID == 69 to IF -:eth2:-
ssh stop/waiting
ssh start/running, process 1465

Set name-type for VLAN subsystem. Should be visible in /proc/net/vlan/config
Added VLAN with VID == 96 to IF -:eth2:-
ssh stop/waiting
ssh start/running, process 1530
[ OK ]

To check if are up we will read file vlan/config using command # cat /proc/net/vlan/config. The output will be the next if all is good.

    VLAN Dev name | VLAN ID
    Name-Type: VLAN_NAME_TYPE_PLUS_VID_NO_PAD
    vlan69 | 69 | eth2
    vlan96 | 96 | eth2

Author: razvan1@hy