Ipv6NeighbourDiscovery

simple module

Implements IPv6 Neighbour Discovery.

An overview of the Ipv6 implementation in the INET Framework is provided here.

See also: Ipv6, Ipv6RoutingTable, Icmpv6

Used in compound modules

Name	Type	Description
Ipv6NetworkLayer	compound module	Represents an IPv6 network layer (L3).

Parameters

Name	Type	Default value	Description
interfaceTableModule	string		The path to the InterfaceTable module
crcMode	string	"declared"
icmpv6Module	string
xmipv6Module	string
routingTableModule	string
minIntervalBetweenRAs	double	30ms	minRtrAdvInterval: 0.03 sec for MIPv6 , declared as parameter to facilitate testing without recompiling (Zarrar 15.07.07)
maxIntervalBetweenRAs	double	70ms	MaxrtrAdvInterval: 0.07 sec for MIPv6, declared as parameter to facilitate testing without recompiling (Zarrar 15.07.07)

Properties

Name	Value	Description
display	i=block/network

Gates

Name	Direction	Size	Description
ipv6In	input
ipv6Out	output

Signals

Name	Type	Unit
startDad	long

Statistics

Name	Title	Source	Record	Unit	Interpolation Mode
startDad	DAD started		count, vector

Scheduled messages (observed)

msg	kind	msgname	context
omnetpp::cMessage	0	assignLinkLocalAddr
omnetpp::cMessage	1	sendPeriodicRA	filled
omnetpp::cMessage	2	sendSolicitedRA	filled
omnetpp::cMessage	3	initiateRTRDIS	filled
omnetpp::cMessage	4	dadTimeout	filled
omnetpp::cMessage	5	processRDTimeout	filled
omnetpp::cMessage	6	NUDTimeout	filled
omnetpp::cMessage	7	arTimeout	filled

Direct method calls (observed)

call to	function	info
InterfaceTable	inet::InterfaceTable::interfaceChanged	interfaceChanged
Icmpv6	inet::Icmpv6::sendErrorMessage	sendErrorMessage(datagram, type=%d, code=%d)
Ipv6NeighbourDiscovery	inet::Ipv6NeighbourDiscovery::createAndSendNsPacket	createAndSendNsPacket
Ipv6NeighbourDiscovery	inet::Ipv6NeighbourDiscovery::initiateDad	initiateDad
Ipv6RoutingTable	inet::Ipv6RoutingTable::doLongestPrefixMatch	doLongestPrefixMatch(%s)

Called methods (observed)

function	info	call from
inet::Ipv6NeighbourDiscovery::createAndSendNsPacket	createAndSendNsPacket	Ipv6NeighbourDiscovery
inet::Ipv6NeighbourDiscovery::initiateDad	initiateDad	Ipv6NeighbourDiscovery
inet::Ipv6NeighbourDiscovery::resolveNeighbour	resolveNeighbor(%s,if=%d)	Ipv6

Incoming messages (observed)

gate	msg	kind	ctrl	srcModule	tags
ipv6In	Packet	0		Ipv6	DispatchProtocolInd, DispatchProtocolReq, DscpInd, EcnInd, HopLimitInd, InterfaceInd, L3AddressInd, NetworkProtocolInd, PacketProtocolTag, TosInd, ErrorRateInd?, Ieee802SapInd?, MacAddressInd?, SignalPowerInd?, SignalTimeInd?, SnirInd?, Ieee80211ChannelInd?, Ieee80211ModeInd?
ipv6In	Packet	0	Ipv6NdControlInfo	Ipv6	DispatchProtocolReq, NetworkProtocolInd, PacketProtocolTag, InterfaceInd?, MacAddressInd?, MulticastReq?, SocketReq?, TransportProtocolInd?

Outgoing messages (observed)

gate	msg	kind	ctrl	destModule	tags
ipv6Out	Packet	0		Ipv6	HopLimitReq, InterfaceReq, L3AddressReq, PacketProtocolTag
ipv6Out	Packet	0	Ipv6NdControlInfo	Ipv6	DispatchProtocolReq, NetworkProtocolInd, PacketProtocolTag, InterfaceInd?, MacAddressInd?, TransportProtocolInd?

Packet operations (observed)

chunkType	packetAction
Icmpv6Header	peekAtFront
Ipv6Header	peekAtFront
Ipv6NeighbourAdvertisement	insertAtFront
Ipv6NeighbourSolicitation	insertAtFront
Ipv6RouterAdvertisement	insertAtFront
Ipv6RouterSolicitation	insertAtFront

Shared Tagging operations (observed)

tagType	tagAction
DispatchProtocolReq	removeTagIfPresent
HopLimitInd	getTag
HopLimitReq	addTagIfAbsent
InterfaceInd	getTag
InterfaceReq	addTagIfAbsent
L3AddressInd	getTag
L3AddressReq	addTagIfAbsent
PacketProtocolTag	addTagIfAbsent, getTag

Tagging operations (observed)

tagType	tagAction
inet::Ipv6InterfaceData	getTag, getTagForUpdate

Source code

//
// Implements IPv6 Neighbour Discovery.
//
// An overview of the Ipv6 implementation in the INET Framework is
// provided <a href="ipv6overview.html">here</a>.
//
// @see ~Ipv6, ~Ipv6RoutingTable, ~Icmpv6
//
simple Ipv6NeighbourDiscovery
{
    parameters:
        string interfaceTableModule;   // The path to the InterfaceTable module
        string crcMode @enum("declared","computed") = default("declared");
        string icmpv6Module;
        string xmipv6Module;
        string routingTableModule;
        double minIntervalBetweenRAs @unit(s) = default(30ms); //minRtrAdvInterval:  0.03 sec for MIPv6 , declared as parameter to facilitate testing without recompiling (Zarrar 15.07.07)
        double maxIntervalBetweenRAs @unit(s) = default(70ms);  //MaxrtrAdvInterval: 0.07 sec for MIPv6, declared as parameter to facilitate testing without recompiling (Zarrar 15.07.07)
        @display("i=block/network");
        @signal[startDad](type=long); // emits value=1
        @statistic[startDad](title="DAD started"; record=count,vector);
    gates:
        input ipv6In;
        output ipv6Out;
}

File: src/inet/networklayer/icmpv6/Ipv6NeighbourDiscovery.ned