Ipv4NodeConfigurator¶

Package: inet.networklayer.configurator.ipv4

simple module Ipv4NodeConfigurator

Configures the containing network node using information provided by the network’s global configurator modue Ipv4NetworkConfigurator.

Ipv4NetworkConfigurator only computes and remembers configuration data (assigned IP addresses, static routes, etc), but doesn’t configure the nodes’ routing tables and interfaces accordingly. The actual configuration is carried out by this module, at network initialization time and also when the node restarts (i.e. after a shutdown or a crash.)

This module is needed because of failure/restart scenarios: Ipv4NetworkConfigurator would not be able to configure the node after a restart, because being a global module, it doesn’t know about node lifecycle events.

Usage diagram¶

Inheritance diagram¶

Used in compound modules¶

Name	Type	Description
ExtUpperIpv4NetworkLayer	compound module	Provides a network layer that connects the simulation to a real network on the host computer using a TUN device. Allows simulated applications to send and receive packets through the host’s networking stack at the IP layer. Contains standard components like routing table and ARP, and uses ExtUpperIpv4 with a TUN device for external connectivity.
Ipv4NetworkLayer	compound module	Network layer of an IPv4 node.

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		The path to the InterfaceTable module
routingTableModule	string
networkConfiguratorModule	string	“configurator”	The absolute path to the Ipv4NetworkConfigurator; use “” if there is no configurator
configureRoutingTable	bool	true	Add routing entries to the routing table (uses the configurator module)

Properties¶

Name	Value	Description
class	Ipv4NodeConfigurator
display	i=block/cogwheel

Source code¶

//
// Configures the containing network node using information provided by
// the network's global configurator modue  ~Ipv4NetworkConfigurator.
//
// ~Ipv4NetworkConfigurator only computes and remembers configuration data
// (assigned IP addresses, static routes, etc), but doesn't configure the nodes'
// routing tables and interfaces accordingly. The actual configuration is
// carried out by this module, at network initialization time and also when
// the node restarts (i.e. after a shutdown or a crash.)
//
// This module is needed because of failure/restart scenarios:
// ~Ipv4NetworkConfigurator would not be able to configure the node after
// a restart, because being a global module, it doesn't know about node
// lifecycle events.
//
simple Ipv4NodeConfigurator extends SimpleModule like IIpv4NodeConfigurator
{
    parameters:
        @class(Ipv4NodeConfigurator);
        string interfaceTableModule;   // The path to the InterfaceTable module
        string routingTableModule;
        // TODO eventually rename to networkConfigurator
        string networkConfiguratorModule = default("configurator"); // The absolute path to the Ipv4NetworkConfigurator; use "" if there is no configurator
        bool configureRoutingTable = default(true);     // Add routing entries to the routing table (uses the configurator module)
        @display("i=block/cogwheel");
}

File: src/inet/networklayer/configurator/ipv4/Ipv4NodeConfigurator.ned