static void Main(string[] args)
{
var pc1 = NetworkFactory.CreateComputer( );
var pc2 = NetworkFactory.CreateComputer( );
var pc3 = NetworkFactory.CreateComputer( );
var r1 = NetworkFactory.CreateRouter( );
var r2 = NetworkFactory.CreateRouter( );
var r3 = NetworkFactory.CreateRouter( );
var h1 = NetworkFactory.CreateHub( );
var h2 = NetworkFactory.CreateHub( );
var h3 = NetworkFactory.CreateHub( );
var h4 = NetworkFactory.CreateHub( );
NetworkFactory.MakeLink(pc1.Interfaces[0], h1.Interfaces[0]);
NetworkFactory.MakeLink(pc2.Interfaces[0], h2.Interfaces[0]);
NetworkFactory.MakeLink(pc3.Interfaces[0], h3.Interfaces[0]);
NetworkFactory.MakeLink(h1.Interfaces[1], r1.Interfaces[0]);
NetworkFactory.MakeLink(h2.Interfaces[1], r2.Interfaces[0]);
NetworkFactory.MakeLink(h3.Interfaces[1], r3.Interfaces[0]);
NetworkFactory.MakeLink(r1.Interfaces[1], h4.Interfaces[0]);
NetworkFactory.MakeLink(r2.Interfaces[1], h4.Interfaces[1]);
NetworkFactory.MakeLink(r3.Interfaces[1], h4.Interfaces[2]);
pc1.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.1.1"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.1.255"));
pc2.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.2.1"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.2.255"));
pc3.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.3.1"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.3.255"));
r1.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.1.100"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.1.255"));
r1.Interfaces[1].Address = new NetAddress(IPAddressParse("192.168.4.1"), IPAddressParse("255.255.255.240"), IPAddressParse("192.168.4.255"));
r2.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.2.100"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.2.255"));
r2.Interfaces[1].Address = new NetAddress(IPAddressParse("192.168.4.2"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.4.255"));
r2.Interfaces[2].Address = new NetAddress(IPAddressParse("192.168.5.2"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.5.255"));
r3.Interfaces[0].Address = new NetAddress(IPAddressParse("192.168.3.100"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.3.255"));
r3.Interfaces[1].Address = new NetAddress(IPAddressParse("192.168.5.1"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.5.255"));
pc1.DefaultRoute = new NetRoute(IPAddressParse("192.168.1.100"));
pc2.DefaultRoute = new NetRoute(IPAddressParse("192.168.2.100"));
pc3.DefaultRoute = new NetRoute(IPAddressParse("192.168.3.100"));
r1.Routes.Add(new NetRoute(IPAddressParse("192.168.2.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.4.2")));
r1.Routes.Add(new NetRoute(IPAddressParse("192.168.3.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.4.2")));
r2.Routes.Add(new NetRoute(IPAddressParse("192.168.1.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.4.1")));
r2.Routes.Add(new NetRoute(IPAddressParse("192.168.3.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.5.1")));
r3.Routes.Add(new NetRoute(IPAddressParse("192.168.1.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.5.2")));
r3.Routes.Add(new NetRoute(IPAddressParse("192.168.2.0"), IPAddressParse("255.255.255.0"), IPAddressParse("192.168.5.2")));
pc1.SendPing(IPAddressParse("192.168.3.1"));
System.Console.WriteLine("EOS");
System.Console.ReadKey( );
}