1VLAN manipulation action in tc(8)    Linux   VLAN manipulation action in tc(8)
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NAME

6       vlan - vlan manipulation module
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SYNOPSIS

9       tc ... action vlan { pop | PUSH | MODIFY } [ CONTROL ]
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11       PUSH := push [ protocol VLANPROTO ]  [ priority VLANPRIO ] id VLANID
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13       MODIFY  :=  modify  [  protocol  VLANPROTO  ]  [ priority VLANPRIO ] id
14               VLANID
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16       CONTROL := { reclassify | pipe | drop | continue | pass }
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DESCRIPTION

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

26       pop    Decapsulation mode, no further arguments allowed.
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28       push   Encapsulation mode. Requires at least id option.
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30       modify Replace mode. Existing 802.1Q tag is replaced. Requires at least
31              id option.
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33       id VLANID
34              Specify  the VLAN ID to encapsulate into.  VLANID is an unsigned
35              16bit integer, the format is detected automatically (e.g. prefix
36              with '0x' for hexadecimal interpretation, etc.).
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38       protocol VLANPROTO
39              Choose  the  VLAN  protocol  to use. At the time of writing, the
40              kernel accepts only 802.1Q or 802.1ad.
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42       priority VLANPRIO
43              Choose the VLAN priority to use. Decimal number in range of 0-7.
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45       CONTROL
46              How to continue after executing this action.
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48              reclassify
49                     Restarts classification by jumping back to the first fil‐
50                     ter attached to this action's parent.
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52              pipe   Continue with the next action, this is the default.
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54              drop   Packet will be dropped without running further actions.
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56              continue
57                     Continue classification with next filter in line.
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59              pass   Return  to calling qdisc for packet processing. This ends
60                     the classification process.
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EXAMPLES

63       The following example encapsulates incoming ICMP packets on  eth0  from
64       10.0.0.2 into VLAN ID 123:
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66              #tc qdisc add dev eth0 handle ffff: ingress
67              #tc filter add dev eth0 parent ffff: pref 11 protocol ip \
68                   u32 match ip protocol 1 0xff flowid 1:1 \
69                   u32 match ip src 10.0.0.2 flowid 1:1 \
70                   action vlan push id 123
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72       Here  is  an example of the pop function: Incoming VLAN packets on eth0
73       are decapsulated and the classification process then restarted for  the
74       plain packet:
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76              #tc qdisc add dev eth0 handle ffff: ingress
77              #tc filter add dev $ETH parent ffff: pref 1 protocol 802.1Q \
78                   u32 match u32 0 0 flowid 1:1 \
79                   action vlan pop reclassify
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SEE ALSO

83       tc(8)
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87iproute2                          12 Jan 2015VLAN manipulation action in tc(8)