Ipv6Tunnel¶

Package: inet.networklayer.ipv6tunneling

simple module Ipv6Tunnel

Worker module of ~Ipv6TunnelInterface: performs IPv6-in-IPv6 (RFC 2473) encapsulation. A packet routed to this interface (from the IPv6 layer) is wrapped in an outer IPv6 header and handed back to IPv6, which forwards the encapsulated datagram toward the tunnel exit.

Usage diagram¶

Inheritance diagram¶

Used in compound modules¶

Name	Type	Description
Ipv6TunnelInterface	compound module	A virtual network interface that tunnels IPv6 traffic in IPv6 (RFC 2473). Traffic routed to this interface is encapsulated toward `destination` and handed back to IPv6 for forwarding; the IPv6 core needs no tunneling-specific knowledge. Plugs into the `tun[]` slot of nodes like any ITunnelInterface.

Extends¶

Name	Type	Description
SimpleModule	simple module	Base module for all INET simple modules.

Parameters¶

Name	Type	Default value	Description
displayStringTextFormat	string	“”	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
interfaceTableModule	string
source	string		tunnel entry point (an address of this node)
destination	string		tunnel exit point
mtu	int	1500B

Properties¶

Name	Value	Description
class	Ipv6Tunnel
display	i=block/tunnel

Gates¶

Name	Direction	Size	Description
upperLayerIn	input
upperLayerOut	output

Signals¶

Name	Type	Unit	Description
packetReceivedFromLower	cPacket
packetReceivedFromUpper	cPacket
packetSentToLower	cPacket
packetSentToUpper	cPacket

Source code¶

//
// Worker module of ~Ipv6TunnelInterface: performs IPv6-in-IPv6 (RFC 2473)
// encapsulation. A packet routed to this interface (from the IPv6 layer) is
// wrapped in an outer IPv6 header and handed back to IPv6, which forwards the
// encapsulated datagram toward the tunnel exit.
//
simple Ipv6Tunnel extends SimpleModule
{
    parameters:
        @class(Ipv6Tunnel);
        string interfaceTableModule;
        string source;      // tunnel entry point (an address of this node)
        string destination; // tunnel exit point
        int mtu @unit(B) = default(1500B);
        @display("i=block/tunnel");
        @signal[packetReceivedFromUpper](type=cPacket);
        @signal[packetReceivedFromLower](type=cPacket);
        @signal[packetSentToUpper](type=cPacket);
        @signal[packetSentToLower](type=cPacket);
    gates:
        input upperLayerIn;
        output upperLayerOut;
}

File: src/inet/networklayer/ipv6tunneling/Ipv6Tunnel.ned