Package: inet.networklayer.ipv4
Ipv4NetworkLayer
compound moduleNetwork layer of an IPv4 node.
Usage diagram
The following diagram shows usage relationships between types. Unresolved types are missing from the diagram.
Inheritance diagram
The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.
Used in compound modules
Name | Type | Description |
---|---|---|
LdpMplsRouter | compound module |
An LDP-capable router. |
RsvpMplsRouter | compound module |
An RSVP-TE capable router. |
Parameters
Name | Type | Default value | Description |
---|---|---|---|
forwarding | bool | false | |
multicastForwarding | bool | false | |
interfaceTableModule | string | ||
displayStringTextFormat | string | "%i" |
Properties
Name | Value | Description |
---|---|---|
class | ::inet::Ipv4NetworkLayer | |
display | i=block/fork |
Gates
Name | Direction | Size | Description |
---|---|---|---|
ifIn | input | ||
ifOut | output | ||
transportIn | input | ||
transportOut | output |
Unassigned submodule parameters
Name | Type | Default value | Description |
---|---|---|---|
routingTable.interfaceTableModule | string |
The path to the InterfaceTable module |
|
routingTable.routerId | string | "auto" |
for routers, the router id using IPv4 address dotted notation; specify "auto" to select the highest interface address; should be left empty ("") for hosts |
routingTable.netmaskRoutes | string | "*" |
maintain netmask routes for interfaces |
routingTable.forwarding | bool | true |
turns IP forwarding on/off |
routingTable.multicastForwarding | bool | false |
turns multicast forwarding on/off |
routingTable.useAdminDist | bool | false |
Use Cisco like administrative distances |
routingTable.routingFile | string | "" |
routing table file name |
natTable.networkProtocolModule | string | "^.ip" | |
natTable.config | xml | xml(" |
XML configuration parameters for network address translation |
up.displayStringTextFormat | string | "processed %p pk (%l)" |
determines the text that is written on top of the submodule |
up.forwardServiceRegistration | bool | true | |
up.forwardProtocolRegistration | bool | true | |
icmp.interfaceTableModule | string |
The path to the InterfaceTable module |
|
icmp.routingTableModule | string | ||
icmp.crcMode | string | "declared" | |
icmp.quoteLength | int | 8B |
Number of bytes from original packet to quote in ICMP reply |
mp.displayStringTextFormat | string | "processed %p pk (%l)" |
determines the text that is written on top of the submodule |
mp.forwardServiceRegistration | bool | true | |
mp.forwardProtocolRegistration | bool | true | |
lp.displayStringTextFormat | string | "processed %p pk (%l)" |
determines the text that is written on top of the submodule |
lp.forwardServiceRegistration | bool | true | |
lp.forwardProtocolRegistration | bool | true |
Source code
// // Network layer of an IPv4 node. // // module Ipv4NetworkLayer like INetworkLayer { parameters: bool forwarding = default(false); bool multicastForwarding = default(false); string interfaceTableModule; string displayStringTextFormat = default("%i"); *.forwarding = this.forwarding; *.multicastForwarding = this.multicastForwarding; *.interfaceTableModule = default(absPath(this.interfaceTableModule)); *.routingTableModule = default(absPath(".routingTable")); *.arpModule = default(absPath(".arp")); *.icmpModule = default(absPath(".icmp")); @class(::inet::Ipv4NetworkLayer); @display("i=block/fork"); gates: input ifIn @labels(INetworkHeader); output ifOut @labels(INetworkHeader); input transportIn @labels(Ipv4ControlInfo/down); output transportOut @labels(Ipv4ControlInfo/up); submodules: configurator: <default("Ipv4NodeConfigurator")> like IIpv4NodeConfigurator if typename != "" { parameters: @display("p=100,100;is=s"); } routingTable: Ipv4RoutingTable { parameters: @display("p=100,200;is=s"); } natTable: Ipv4NatTable { parameters: @display("p=100,300;is=s"); } up: MessageDispatcher { parameters: @display("p=550,100;b=600,5"); } igmp: <default("Igmpv2")> like IIgmp { parameters: @display("p=400,200"); } icmp: Icmp { parameters: @display("p=700,200"); } mp: MessageDispatcher { parameters: @display("p=550,300;b=600,5"); } ip: <default("Ipv4")> like IIpv4 { parameters: @display("p=700,400;q=queue"); } arp: <default("Arp")> like IArp { parameters: @display("p=400,400;q=pendingQueue"); } lp: MessageDispatcher { parameters: @display("p=550,500;b=600,5"); } connections allowunconnected: transportIn --> { @display("m=n"); } --> up.in++; transportOut <-- { @display("m=n"); } <-- up.out++; up.out++ --> igmp.routerIn; up.in++ <-- igmp.routerOut; up.out++ --> mp.in++; up.in++ <-- mp.out++; up.out++ --> icmp.transportIn; up.in++ <-- icmp.transportOut; igmp.ipOut --> mp.in++; igmp.ipIn <-- mp.out++; icmp.ipOut --> mp.in++; icmp.ipIn <-- mp.out++; mp.out++ --> ip.transportIn; mp.in++ <-- ip.transportOut; arp.ifOut --> lp.in++; arp.ifIn <-- lp.out++; ip.queueOut --> lp.in++; ip.queueIn <-- lp.out++; lp.out++ --> { @display("m=s"); } --> ifOut; lp.in++ <-- { @display("m=s"); } <-- ifIn; }File: src/inet/networklayer/ipv4/Ipv4NetworkLayer.ned