scapy.contrib.igmpv3¶

class scapy.contrib.igmpv3.IGMPv3¶

Bases: scapy.contrib.igmp.IGMP

IGMP Message Class for v3.

This class is derived from class Packet. The fields defined below are a direct interpretation of the v3 Membership Query Message. Fields ‘type’ through ‘qqic’ are directly assignable. For ‘numsrc’, do not assign a value. Instead add to the ‘srcaddrs’ list to auto-set ‘numsrc’. To assign values to ‘srcaddrs’, use the following methods:

c = IGMPv3()
c.srcaddrs = ['1.2.3.4', '5.6.7.8']
c.srcaddrs += ['192.168.10.24']

At this point, ‘c.numsrc’ is three (3)

‘chksum’ is automagically calculated before the packet is sent.

‘mrcode’ is also the Advertisement Interval field

aliastypes¶

classmethod dispatch_hook(_pkt=None, *args, **kargs)¶

encode_maxrespcode()¶

Encode and replace the mrcode value to its IGMPv3 encoded time value if needed, # noqa: E501 as specified in rfc3376#section-4.1.1.

If value < 128, return the value specified. If >= 128, encode as a floating # noqa: E501 point value. Value can be 0 - 31744.

fields_desc¶

IGMPv3 fields¶
type	`ByteEnumField`	`17`
mrcode	`ByteField`	`20`
chksum	`XShortField`	`None`

igmpv3types = {17: 'Membership Query', 34: 'Version 3 Membership Report', 48: 'Multicast Router Advertisement', 49: 'Multicast Router Solicitation', 50: 'Multicast Router Termination'}¶

mysummary()¶: Display a summary of the IGMPv3 object.

payload_guess¶: Possible sublayers: IGMPv3mq, IGMPv3mr, IGMPv3mra

class scapy.contrib.igmpv3.IGMPv3gr¶

Bases: scapy.packet.Packet

IGMP Group Record for IGMPv3 Membership Report

This class is derived from class Packet and should be added in the records of an instantiation of class IGMPv3mr.

aliastypes¶

default_payload_class(payload)¶

fields_desc¶

IGMPv3gr fields¶
rtype	`ByteEnumField`	`1`
auxdlen	`ByteField`	`0`
numsrc	`FieldLenField`	`None`
maddr	`IPField`	`'0.0.0.0'`
srcaddrs	`FieldListField`	`[]`

igmpv3grtypes = {1: 'Mode Is Include', 2: 'Mode Is Exclude', 3: 'Change To Include Mode', 4: 'Change To Exclude Mode', 5: 'Allow New Sources', 6: 'Block Old Sources'}¶

mysummary()¶: Display a summary of the IGMPv3 group record.

class scapy.contrib.igmpv3.IGMPv3mq¶

Bases: scapy.packet.Packet

IGMPv3 Membership Query. Payload of IGMPv3 when type=0x11

aliastypes¶

fields_desc¶

IGMPv3mq fields¶
gaddr	`IPField`	`'0.0.0.0'`
resv	`BitField` (4 bits)	`0`
s	`BitField` (1 bit)	`0`
qrv	`BitField` (3 bits)	`0`
qqic	`ByteField`	`0`
numsrc	`FieldLenField`	`None`
srcaddrs	`FieldListField`	`[]`

class scapy.contrib.igmpv3.IGMPv3mr¶

Bases: scapy.packet.Packet

IGMP Membership Report extension for IGMPv3. Payload of IGMPv3 when type=0x22

aliastypes¶

fields_desc¶

IGMPv3mr fields¶
res2	`XShortField`	`0`
numgrp	`FieldLenField`	`None`
records	`PacketListField`	`[]`

class scapy.contrib.igmpv3.IGMPv3mra¶

Bases: scapy.packet.Packet

IGMP Multicast Router Advertisement extension for IGMPv3. Payload of IGMPv3 when type=0x30

aliastypes¶

fields_desc¶

IGMPv3mra fields¶
qryIntvl	`ShortField`	`0`
robust	`ShortField`	`0`