packet.link.vlan - Man Page

VLAN module

Description

Decode Virtual LAN IEEE 802.1Q/802.1ad layer

Classes

class VLAN(baseobj.BaseObj)

VLAN object

Usage:
    from packet.link.vlan import VLAN

    x = VLAN(pktt)

Object definition:

VLAN(
    pcp   = int,  # Priority Point Code
    dei   = int,  # Drop Eligible Indicator
    vid   = int,  # VLAN Identifier
    etype = int,  # Payload Type
    psize = int,  # Payload Data Size
)


Methods defined here:
---------------------

__init__(self, pktt)
Constructor

Initialize object's private data.

        pktt:
    Packet trace object (packet.pktt.Pktt) so this layer has
    access to the parent layers.

__str__(self)
String representation of object

The representation depends on the verbose level set by debug_repr().
If set to 0 the generic object representation is returned.
If set to 1 the representation of the object is condensed:
    '802.1Q VLAN pcp: 4, dei: 0, vid: 2704 '

If set to 2 the representation of the object also includes the type
of payload:
    '802.1Q Virtual LAN, pcp: 4, dei: 0, vid: 2704, etype: 0x0800(IPv4)'

Functions

vlan_layers(pktt)
Get all nested (stacked VLANs or QinQ) VLAN layers
A Packet layer attribute is created for each VLAN layer:
vlan1, vlan2, ..., and vlan. The last packet attribute
is always vlan.