opendarwin man page for vlan

VLAN manipulation action in tc(8)				       Linux					 VLAN manipulation action in tc(8)

NAME
       vlan - vlan manipulation module

SYNOPSIS
       tc ... action vlan { pop | PUSH | MODIFY } [ CONTROL ]

       PUSH := push [ protocol VLANPROTO ]  [ priority VLANPRIO ] id VLANID

       MODIFY := modify [ protocol VLANPROTO ]	[ priority VLANPRIO ] id VLANID

       CONTROL := { reclassify | pipe | drop | continue | pass | goto chain CHAIN_INDEX }

DESCRIPTION
       The  vlan action allows to perform 802.1Q en- or decapsulation on a packet, reflected by the operation modes POP, PUSH and MODIFY.  The POP
       mode is simple, as no further information is required to just drop the outer-most VLAN encapsulation. The PUSH and MODIFY modes require	at
       least a VLANID and allow to optionally choose the VLANPROTO to use.

OPTIONS
       pop    Decapsulation mode, no further arguments allowed.

       push   Encapsulation mode. Requires at least id option.

       modify Replace mode. Existing 802.1Q tag is replaced. Requires at least id option.

       id VLANID
	      Specify  the  VLAN  ID  to encapsulate into.  VLANID is an unsigned 16bit integer, the format is detected automatically (e.g. prefix
	      with '0x' for hexadecimal interpretation, etc.).

       protocol VLANPROTO
	      Choose the VLAN protocol to use. At the time of writing, the kernel accepts only 802.1Q or 802.1ad.

       priority VLANPRIO
	      Choose the VLAN priority to use. Decimal number in range of 0-7.

       CONTROL
	      How to continue after executing this action.

	      reclassify
		     Restarts classification by jumping back to the first filter attached to this action's parent.

	      pipe   Continue with the next action, this is the default.

	      drop   Packet will be dropped without running further actions.

	      continue
		     Continue classification with next filter in line.

	      pass   Return to calling qdisc for packet processing. This ends the classification process.

EXAMPLES
       The following example encapsulates incoming ICMP packets on eth0 from 10.0.0.2 into VLAN ID 123:

	      #tc qdisc add dev eth0 handle ffff: ingress
	      #tc filter add dev eth0 parent ffff: pref 11 protocol ip 
		   u32 match ip protocol 1 0xff flowid 1:1 
		   u32 match ip src 10.0.0.2 flowid 1:1 
		   action vlan push id 123

       Here is an example of the pop function: Incoming VLAN packets on eth0 are decapsulated and the classification process  then  restarted  for
       the plain packet:

	      #tc qdisc add dev eth0 handle ffff: ingress
	      #tc filter add dev $ETH parent ffff: pref 1 protocol 802.1Q 
		   u32 match u32 0 0 flowid 1:1 
		   action vlan pop reclassify

SEE ALSO
       tc(8)

iproute2							    12 Jan 2015 				 VLAN manipulation action in tc(8)