Helper class to auto-assign global IPv6 unicast addresses. More...

#include "ipv6-address-helper.h"

Collaboration diagram for ns3::Ipv6AddressHelper:

Public Member Functions
	Ipv6AddressHelper ()
	Constructor. More...

	Ipv6AddressHelper (Ipv6Address network, Ipv6Prefix prefix, Ipv6Address base=Ipv6Address("::1"))
	Constructor. More...

Ipv6InterfaceContainer	Assign (const NetDeviceContainer &c)
	Allocate an Ipv6InterfaceContainer with auto-assigned addresses. More...

Ipv6InterfaceContainer	Assign (const NetDeviceContainer &c, std::vector< bool > withConfiguration)
	Allocate an Ipv6InterfaceContainer, and control whether the interfaces have addresses auto-assigned to them. More...

Ipv6InterfaceContainer	Assign (const NetDeviceContainer &c, std::vector< bool > withConfiguration, std::vector< bool > onLink)
	Allocate an Ipv6InterfaceContainer, and control whether the interfaces have addresses auto-assigned to them. More...

Ipv6InterfaceContainer	AssignWithoutAddress (const NetDeviceContainer &c)
	Allocate an Ipv6InterfaceContainer but do not assign any IPv6 addresses. More...

Ipv6InterfaceContainer	AssignWithoutOnLink (const NetDeviceContainer &c)
	Allocate an Ipv6InterfaceContainer with auto-assigned addresses, but do not set the on-link property for the network. More...

Ipv6Address	NewAddress ()
	Allocate a new Ipv6Address with interface ID equal to the next one in the underlying generator. More...

Ipv6Address	NewAddress (Address addr)
	Allocate a new Ipv6Address. More...

void	NewNetwork ()
	Allocate a new network. More...

void	SetBase (Ipv6Address network, Ipv6Prefix prefix, Ipv6Address base=Ipv6Address("::1"))
	Set the base network number, network prefix, and base interface ID. More...

Private Attributes
Ipv6Address	m_address
	host address More...

Ipv6Address	m_base
	host base address More...

Ipv6Address	m_network
	network address More...

Ipv6Prefix	m_prefix
	prefix length More...

Detailed Description

Helper class to auto-assign global IPv6 unicast addresses.

Assign global unicast IPv6 addresses based on RFC 4291 definition.

11111111111111111111111111000000000000 <—prefix of length n—>

This class handles the following quantities. 1) The "network" which covers the 64 bit union of the global routing prefix and the subnet ID 2) the "prefix" length "n" which demarcates the global routing prefix and the subnet ID 3) the "base" which is the initial 64-bit interface ID.

The names "network", "prefix" and "base" are chosen to be consistent with a similar address helper for IPv4.

This helper class allows users to set or reset the network and interface components, and call "NewAddress ()" to sequentially increment the interface ID, and call "NewNetwork ()" to allocate a new subnet (until the subnet ID quantity rolls over). A call to NewNetwork () that causes the subnet ID to roll over will trigger an assertion.

By default, the prefix is 32 bits and the network is '2001:db8::/32' (RFC 5156 section 2.6 Documentation prefix). The prefix may range from length 0 to 64, with the value 64 having a special meaning that no subnet ID boundary is enforced (equivalent to value 0).

There are two variants of interface ID supported (RFC 4291, Sec. 2.5.1) The default is a "local" scope, but a "universal" scoped ID may be formed by calling "NewAddress (Address addr)" with a 48-bit MAC address. If this method is called, the addressed returned will include a modified EUI-64-format identifier created from the MAC address as specified in RFC 4291.

BEWARE: the underlying implementation acts as a Singleton. In other terms, two different instances of Ipv6AddressHelper will pick IPv6 numbers from the same pool. Changing the network in one of them will also change the network in the other instances.

Definition at line 83 of file ipv6-address-helper.h.

Constructor & Destructor Documentation

◆ Ipv6AddressHelper() [1/2]

ns3::Ipv6AddressHelper::Ipv6AddressHelper ( )

Constructor.

Definition at line 42 of file ipv6-address-helper.cc.

References m_address, m_base, m_network, m_prefix, and NS_LOG_FUNCTION.

◆ Ipv6AddressHelper() [2/2]

ns3::Ipv6AddressHelper::Ipv6AddressHelper	(	Ipv6Address	network,
		Ipv6Prefix	prefix,
		Ipv6Address	base = `Ipv6Address("::1")`
	)

Constructor.

Parameters

network	The IPv6 network
prefix	The prefix
base	The base interface ID

Definition at line 51 of file ipv6-address-helper.cc.

References ns3::Ipv6Address::CombinePrefix(), ns3::Ipv6Address::GetZero(), m_address, m_base, m_network, m_prefix, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

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Member Function Documentation

◆ Assign() [1/3]

Ipv6InterfaceContainer ns3::Ipv6AddressHelper::Assign ( const NetDeviceContainer & c )

Allocate an Ipv6InterfaceContainer with auto-assigned addresses.

Parameters

c	netdevice container

Returns: newly created Ipv6InterfaceContainer

Definition at line 220 of file ipv6-address-helper.cc.

References ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

Referenced by Assign(), ns3::CsmaStarHelper::AssignIpv6Addresses(), ns3::PointToPointDumbbellHelper::AssignIpv6Addresses(), ns3::PointToPointGridHelper::AssignIpv6Addresses(), ns3::PointToPointStarHelper::AssignIpv6Addresses(), ns3::NoBackhaulEpcHelper::AssignUeIpv6Address(), AssignWithoutAddress(), AssignWithoutOnLink(), ThreeGppHttpObjectTestCase::CreateSimpleInternetNode(), RadvdTestCase::DoRun(), IcmpV6EchoReplyTestCase::DoRun(), IpAddressHelperTestCasev6::DoRun(), DynamicNeighborCacheTest::DoRun(), ChannelTest::DoRun(), NetDeviceContainerTest::DoRun(), InterfaceContainerTest::DoRun(), FlushTest::DoRun(), DuplicateTest::DoRun(), DynamicPartialTest::DoRun(), LteIpv6RoutingTestCase::DoRun(), NixVectorRoutingTest::DoRun(), SixlowpanIphcStatefulImplTest::DoRun(), and UanExperiment::SetupCommunications().

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◆ Assign() [2/3]

Ipv6InterfaceContainer ns3::Ipv6AddressHelper::Assign	(	const NetDeviceContainer &	c,
		std::vector< bool >	withConfiguration
	)

Allocate an Ipv6InterfaceContainer, and control whether the interfaces have addresses auto-assigned to them.

Parameters

c	netdevice container
withConfiguration	a vector of values for which, for a given device, true : interface automatically addressed, false : no automatic address

Returns: newly created Ipv6InterfaceContainer

Definition at line 228 of file ipv6-address-helper.cc.

References Assign(), ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

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◆ Assign() [3/3]

Ipv6InterfaceContainer ns3::Ipv6AddressHelper::Assign	(	const NetDeviceContainer &	c,
		std::vector< bool >	withConfiguration,
		std::vector< bool >	onLink
	)

Allocate an Ipv6InterfaceContainer, and control whether the interfaces have addresses auto-assigned to them.

Parameters

c	netdevice container
withConfiguration	a vector of values for which, for a given device, true : interface automatically addressed, false : no automatic address
onLink	a vector of values for which, for a given device, true : on-link property added, false : network is not on-link Meaningful only if the address is automatically assigned.

Returns: newly created Ipv6InterfaceContainer

Definition at line 236 of file ipv6-address-helper.cc.

References ns3::Ipv6InterfaceContainer::Add(), ns3::TrafficControlHelper::Default(), ns3::NetDeviceContainer::Get(), ns3::NetDeviceContainer::GetN(), ns3::Object::GetObject(), ns3::TrafficControlHelper::Install(), NewAddress(), NS_ASSERT_MSG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ AssignWithoutAddress()

Ipv6InterfaceContainer ns3::Ipv6AddressHelper::AssignWithoutAddress ( const NetDeviceContainer & c )

Allocate an Ipv6InterfaceContainer but do not assign any IPv6 addresses.

This method is used when IPv6 address assignment may occur later (such as dynamic address assignment)

Equivalent to AssignWithoutAddress (c, std::vector<bool> of false);

Parameters

c	netdevice container

Returns: newly created Ipv6InterfaceContainer

Definition at line 304 of file ipv6-address-helper.cc.

References Assign(), ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

Referenced by RadvdTestCase::DoRun(), Ipv6DadTest::DoRun(), Ipv6RipngTest::DoRun(), Ipv6RipngCountToInfinityTest::DoRun(), and Ipv6RipngSplitHorizonStrategyTest::DoRun().

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◆ AssignWithoutOnLink()

Ipv6InterfaceContainer ns3::Ipv6AddressHelper::AssignWithoutOnLink ( const NetDeviceContainer & c )

Allocate an Ipv6InterfaceContainer with auto-assigned addresses, but do not set the on-link property for the network.

This method will assign a valid global address to the interface but the routing will not consider the network as "on-link".

Parameters

c	netdevice container

Returns: newly created Ipv6InterfaceContainer

Definition at line 312 of file ipv6-address-helper.cc.

References Assign(), ns3::NetDeviceContainer::GetN(), and NS_LOG_FUNCTION.

Referenced by RadvdTestCase::DoRun(), Ipv6RipngTest::DoRun(), Ipv6RipngCountToInfinityTest::DoRun(), and Ipv6RipngSplitHorizonStrategyTest::DoRun().

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◆ NewAddress() [1/2]

Ipv6Address ns3::Ipv6AddressHelper::NewAddress ( )

Allocate a new Ipv6Address with interface ID equal to the next one in the underlying generator.

Returns: newly created Ipv6Address

Definition at line 129 of file ipv6-address-helper.cc.

References ns3::Ipv6AddressGenerator::AddAllocated(), ns3::Ipv6Address::CombinePrefix(), ns3::Ipv6Address::GetBytes(), ns3::Ipv6Address::GetZero(), m_address, m_network, m_prefix, NS_ASSERT_MSG, and NS_LOG_FUNCTION.

Referenced by Assign().

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◆ NewAddress() [2/2]

Ipv6Address ns3::Ipv6AddressHelper::NewAddress ( Address addr )

Allocate a new Ipv6Address.

If a Mac48Address is passed in, an Ipv6 autoconfigured address according to the current subnet prefix is returned. If something other than Mac48 address is passed in, the program will terminate.

Parameters