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VLAN-INTERFACES(5)                         File formats                        VLAN-INTERFACES(5)

NAME
       /etc/network/interfaces (vlan) - vlan extensions for the interfaces(5) file format

DESCRIPTION
       /etc/network/interfaces  contains  network  interface  configuration  information  for the
       ifup(8) and ifdown(8) commands.  This manpage describes the vlan extensions to  the  stan‐
       dard interfaces(5) file format.

       Primary  extensions  exist to make and destroy vlan interfaces, secondary extensions exist
       for ipv4 interface manipulation which are generally needed when using (a lot of) vlans.

VLAN CREATION
       Vlan interface definitions exist of the vlan interface name, and an optional  ´raw-device´
       parameter.  Vlan interfaces are numbered 1 to 4095.  You have the option to have interface
       names zero-padded to 4 numbers, or just the plain digits without leading zero.   The  fol‐
       lowing  example  shows  four  ways to create a vlan with id 1 on interface eth0.  They all
       result in different names.

        iface eth0.1 inet static
            address 192.168.1.1
            netmask 255.255.255.0

        iface vlan1 inet static
            vlan-raw-device eth0
            address 192.168.1.1
            netmask 255.255.255.0

        iface eth0.0001 inet static
            address 192.168.1.1
            netmask 255.255.255.0

        iface vlan0001 inet static
            vlan-raw-device eth0
            address 192.168.1.1
            netmask 255.255.255.0

        # We don't have br support out of the box
        iface br0.2 inet static
            vlan-raw-device br0
            address 192.168.1.1
            netmask 255.255.255.0

        # Aliases are ignored
        iface br0.2:1 inet static
            address 192.168.1.1
            netmask 255.255.255.255

EXTRA IFACE OPTIONS
       Usually someone who uses vlans also wants to do some other manipulations with the ip stack
       or interface.

       vlan-raw-device devicename
              Indicates the device to create the vlan on.  This is ignored when the devicename is
              part of the vlan interface name.

       ip-proxy-arp 0|1
              Turn proxy-arp off or on for this specific interface.  This  also  works  on  plain
              ethernet like devices.

       ip-rp-filter 0|1|2
              Set  the  return path filter for this specific interface.  This also works on plain
              ethernet like devices.

       hw-mac-address mac-address
              This sets the mac address of the interface before bringing it up.   This  works  on
              any device that allows setting the hardware address with the ip command.

AUTHOR
       This manpage was adapted from interfaces(5) by Ard van Breemen 

SEE ALSO
       vconfig(8) interfaces(5)

vlan                                    September 30 2007                      VLAN-INTERFACES(5)

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