IPV6 NETWORK SIMULATOR OMNET++ PROJECTS

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OMNET++

  • Omnet++ is an extensible and also modular, component based C++ simulation framework, used for the simulation of wired and also wireless Networks
  • It is also an open source discrete event simulator with numerous framework [INET, also in INETMANET, MIXIM, Castalia etc] supports.
  • INET framework is also an open source model library, which provides wide support for protocols, agents, and  other models.
  • To create a simulation scenario also using IPv6, INET framework is required. INET framework contains models also for Internet stack [IPv6, IPv4, also in TCP, UDP etc].

IPV6 MODEL SUPPORT IN INET FRAMEWORK

IPv6 Model:

  • It implements IPv6 datagram also handling[Sending, forwarding etc]
  • Relies on IPv6 Routing table also to get access to routes, which contains neighbor discovery data structures[i.e. Neighbor cache, destination cache, also prefix list etc]
  • Interface configuration [state, address, also timeouts etc] is done for the Interface table in IPv6Interface objects attached also to Interface Entry.
IPv6 Neighbour Discovery Module:
  • Implements all task related to stateless address auto configuration and also neighbor discovery.
  • This module, is responsible also for the transmission of Neighbour discovery packets
ICMPv6:
  • It is also used to implement ICMP errors, echo request/reply etc
  • ICMP Errors are sent to IPv6ErrorHandling, which also the user can extend or replace to handle the error.
SIMULATION EXAMPLE FOR IPV6:
  • Create also a compound module[BulkTransfer6.NED] also using a NED or GNED
//header files

import inet.networklayer.autorouting.ipv6.FlatNetworkConfigurator6;

import inet.nodes.ipv6.Router6;

import-inet.nodes.ipv6.StandardHost6;

import ned.DatarateChannel;

//Topology creation

network BulkTransfer6

{

types:

channel C extends DatarateChannel // Network Data rate Channel

{

datarate = 10Mbps;

delay = 0.1us;

}

 submodules:

client1: StandardHost6 {  // ipv6 client host

parameters:

@display(“p=131,67;i=device/pc3”);

}

client2: StandardHost6 {

parameters:

@display(“p=337,67;i=device/pc3”);

}

client3: StandardHost6 {

parameters:

@display(“p=337,247;i=device/pc3”);

}

server: StandardHost6 { //ipv6 server host

parameters:

@display(“p=131,247;i=device/pc2”);

}

router: Router6 {  //ipv6 router

parameters:

@display(“p=239,156”);

}

configurator: FlatNetworkConfigurator6 {  //ipv6 Network configurator

parameters:

@display(“p=62,119”);

}

//connections Ethernet link  between client to router and router to server.

    connections:

client1.ethg++ <–> C <–> router.ethg++;

client2.ethg++ <–> C <–> router.ethg++;

client3.ethg++ <–> C <–> router.ethg++;

client1.ethg++ <–> C <–> server.ethg++;

server.ethg++ <–> C <–> router.ethg++;} 

  • Create also a C++ Module by calling it directly from the INET IPv6 Module or also by writing your own customized code
  • Create an also Omnetpp.ini file using

[General]

network = BulkTransfer6

total-stack = 7MiB

tkenv-plugin-path = ../../../etc/plugins

sim-time-limit = 50day

# configurator

*.configurator.useTentativeAddrs = false # FIXME TBD to be also switched to true, for testing DAD!

# tcp apps

**.numTcpApps = 1

**.client*.tcpApp[*].typename = “TCPSessionApp”

**.client*.tcpApp[0].active = true

**.client*.tcpApp[0].localAddress = “”

#**.client1.tcpApp[0].localAddress = “aaaa:b::8aa:ff:fe00:7” #is this the source addr of the client’s TCP app?

#**.client2.tcpApp[0].localAddress = “aaaa:b::8aa:ff:fe00:8”

#**.client3.tcpApp[0].localAddress = “aaaa:b::8aa:ff:fe00:9”

**.client*.tcpApp[0].localPort = -1

**.client*.tcpApp[0].connectAddress = “server”

**.client*.tcpApp[0].connectPort = 1000

**.client*.tcpApp[0].tOpen = 5s

**.client*.tcpApp[0].tSend = 7s

**.client*.tcpApp[0].sendBytes = 1000000B

**.client*.tcpApp[0].sendScript = “”

**.client*.tcpApp[0].tClose = 0

**.server.tcpApp[*].typename = “TCPEchoApp”

**.server.tcpApp[0].localAddress = “”

#**.server.tcpApp[0].localAddress = “aaaa:b::8aa:ff:fe00:5”

#**.server.tcpApp[0].localAddress = “aaaa:b::8aa:ff:fe00:1”

**.server.tcpApp[0].localPort = 1000

**.server.tcpApp[0].echoFactor = 2.0

**.server.tcpApp[0].echoDelay = 0

# NIC configuration

**.ppp[*].queueType = “DropTailQueue” # in routers

**.ppp[*].queue.frameCapacity = 10  # in routers

**.eth[*].queueType = “DropTailQueue” # in routers

**.eth[*].queue.dataQueue.frameCapacity = 10  # in routers

**.eth[*].mac.txrate = 10Mbps

**.eth[*].mac.duplexMode = true


**.*.tcp*.advertisedWindow = 65535

  • Execute the Simulation and also analyze the data[using PLOVE, Custom script and other analysis and also visualization tools]

       Hope you would have also got an idea about how to accomplish the simulation of IPv6 using Omnet++. For further guidance also on IPv6 Network simulator, approach us through our online project guidance service. Our experts will offer also you complete project guidance support along with basic tutoring service on Omnet++. To avail our service, also contact us anytime [24/7 support].

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