473,324 Members | 2,179 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,324 software developers and data experts.

subnetting help

hi im needing help with a program im writing to do subnetting
i was on before about it and i got some help.
the code below wont work for me and i cant think of why not.
i was wondering if anyone out there can help, even come up with a better way
of doing this..

i have 2 files..
here is my first file..

// a library assembly i.e. dll
// csc /target:library IPAddressInfo.cs produces IPAddressInfo.dll

using System;

using System.Net;

namespace IPinfo

{

// start class..... inserting IP address information

public abstract class IPAddressInfo

{

private IPAddress ipad;// IPAddress class variable

// read / write property

public IPAddress IP

{

get // read

{

return ipad;

}
set //write

{

ipad = value;

}

}

// constuctor class

public IPAddressInfo(string ipaddress) //read in a string

{

// try catch excetion block

try

{

ipad = IPAddress.Parse(ipaddress); // change the string information into and
ip address

}

catch (Exception) // general catched exception and print out message

{

Console.WriteLine("Incorrect IP Address Format ---> "+ ipaddress);

Console.WriteLine("Correct Format ----> 192.0.0.0 to 223.255.255.255");

}

}
public IPAddressInfo() //default constructor

{
ipad = IPAddress.Parse("192.0.0.0"); // change the string information into
and ip address
}

public abstract void calSubnet(); // abstract class

public virtual void Display() // over ride the ToString method

{

Console.WriteLine("IP Address ---> "+ ipad); // return the IP Address

}

}//end class

// start class..... inserting IP address information

public class SubnetInfo : IPAddressInfo // inherts IPAddressInfo

{

private int networkBits, borrowedBits; // variables of type integer
// constuctor class

public SubnetInfo(int netBits, int boroBits, string ipaddress) :
base(ipaddress)//read in 2 integers and a string

{

// try catch excetion block

try

{

networkBits = netBits;

borrowedBits = boroBits;

}

catch (Exception) // general catched exception and print out message

{

Console.WriteLine("Incorrect Format ---> "+ ipaddress +"enter in integers
I.E. 1,2,3 etc");

}

}
public SubnetInfo():base() //default constructor

{

networkBits = 0;

borrowedBits = 0;

}
// special constructor

public SubnetInfo(string ipaddress):base(ipaddress)

{

}

public override void calSubnet()

{

int bitsleft = 32 - networkBits; // calculate the bits left over.

int totalnetworks = (int)Math.Pow(2,bitsleft);// calculate the total number
of networks (2 to the power of bitsleft)

int totalsubnets = (int)Math.Pow(2,borrowedBits);// calculate the total
number of subnets

int newNet = networkBits + borrowedBits;

int first = 0;

int last = 0;

int i = 0;
string delimStr = ".";

string [] split = null;

char [] delimiter = delimStr.ToCharArray();

string octet4 = IP.ToString();

for (int x = 0; x <= 4; x++) // for loop

{

split = octet4.Split(delimiter); // split the ip address at the delimiter
which is a dot

}
Console.WriteLine("Total Subnets : "+ totalsubnets);
int hold = Int32.Parse(split[3]);
for (i = 0; i < totalsubnets;i++)

{

first = (i/totalsubnets)*totalnetworks+1+hold; // find the first usuable
network number

last = ((i+1)/totalsubnets)*totalnetworks-2+hold;
Console.Write("Subnet "+(i+1)+" ranges from ");
for(int j=0; j < split.Length -1;j++)

{
Console.Write(split[j]);

if (j==3)

break;

Console.Write(".");

}
Console.Write(first+"/"+newNet+" to ");

for(int j=0;j<split.Length -1;j++)

{

Console.Write(split[j]);

if (j==3)

break;

Console.Write(".");

}

Console.Write(last+"/"+newNet);

Console.WriteLine("");
Console.WriteLine("first: "+ first);

Console.WriteLine("last : "+ last);

}


}

public override void Display() // over ride the ToString method

{

Console.WriteLine("IP Address is : "+ IP);

Console.WriteLine("Network bits : "+ networkBits);

Console.WriteLine("Borrowed bits : "+ borrowedBits); // return the IP
Address
}

}//end class

} // end name space

and the other file is

using System;

using System.IO;

using IPinfo;

// application assembly i.e. .exe

// csc /reference:IPAddressInfo.dll TestIP.cs
// default (global) namespace

public class TestIP

{

public static void Main()

{

//initialise variables

string entIPaddress = "";

int netbit = 0, borobit = 0;

bool check = false;

string delimStr = ".";

string [] split = null;

char [] delimiter = delimStr.ToCharArray();
//validation checking...

while(check == false) // while loop

{

Console.WriteLine("enter in a Class C IP Address");

try // try catch general exception

{

entIPaddress = Console.ReadLine(); //read in from console line
for (int x = 0; x <= 4; x++) // for loop

{

split = entIPaddress.Split(delimiter); // split the ip address at the
delimiter which is a dot

}

int temphold = Int32.Parse(split[0]); // convert and insert the 1st octet
into an integer.
if((temphold < 192)||(temphold >= 224)) // validation check

{

Console.WriteLine("***** Not a Class C IP Address");

check = false;

}

else

{

check = true;

}

for (int i = 0; i != 4; i++) // validation check on each octet in the vald
range 0 to 255

{

if (Int32.Parse(split[i]) < 0 || Int32.Parse(split[i]) > 255)

{

Console.WriteLine("Invalid IP address - all octets should be in range
0-255");

}

}
}

catch(Exception) // catch a general exception

{

Console.WriteLine("Incorrect entry");

}

}

try

{

Console.WriteLine("enter in network bits");

netbit = int.Parse(Console.ReadLine()); // read in console line and convert
to and integer
while((netbit < 24)||(netbit > 30)) // validate while loop

{

Console.WriteLine("***** Not a Valid Bit -- between 24 & 30");

Console.WriteLine("enter in network bits");

netbit =int.Parse(Console.ReadLine()); // read in console line and convert
to and integer
}

}

catch(Exception) // catch a general exception

{

Console.WriteLine("Incorrect integer Entry");

}

try

{

Console.WriteLine("enter in borrowed bits");

borobit = int.Parse(Console.ReadLine()); // read in console line and convert
to and integer
int ck = 32 - netbit; //maxs number of bits left to borrow.
while((borobit < 2)||(borobit > ck)) // validate while loop

{

Console.WriteLine("***** Not a Valid Bit -- between 2 & "+ck+"");

Console.WriteLine("enter in borrowed bits");

borobit = int.Parse(Console.ReadLine());// read in console line and convert
to and integer
}
}

catch(Exception) //catch general execption

{

Console.WriteLine("Incorrect integer Entry");

}
Console.WriteLine("");

SubnetInfo sub1 = new SubnetInfo(netbit,borobit,entIPaddress); //initialise
subnet info class and insert entered data

sub1.calSubnet();

sub1.Display(); // calls the display function

}

}

i cant seem to get this to work for a class C ip address with subnetting..

if any one can help it would be much apprecatied....

thanks


Nov 16 '05 #1
0 1464

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

21
by: Dave | last post by:
After following Microsofts admonition to reformat my system before doing a final compilation of my app I got many warnings/errors upon compiling an rtf file created in word. I used the Help...
6
by: wukexin | last post by:
Help me, good men. I find mang books that introduce bit "mang header files",they talk too bit,in fact it is my too fool, I don't learn it, I have do a test program, but I have no correct doing...
3
by: Colin J. Williams | last post by:
Python advertises some basic service: C:\Python24>python Python 2.4.1 (#65, Mar 30 2005, 09:13:57) on win32 Type "help", "copyright", "credits" or "license" for more information. >>> With...
7
by: Corepaul | last post by:
Missing Help Files When I enter "recordset" as the keyword and search the Visual Basic Help index, I get many topics of interest in the resulting list. But there isn't any information available...
5
by: Steve | last post by:
I have written a help file (chm) for a DLL and referenced it using Help.ShowHelp My expectation is that a developer using my DLL would be able to access this help file during his development time...
8
by: Mark | last post by:
I have loaded Visual Studio .net on my home computer and my laptop, but my home computer has an abbreviated help screen not 2% of the help on my laptop. All the settings look the same on both...
10
by: JonathanOrlev | last post by:
Hello everybody, I wrote this comment in another message of mine, but decided to post it again as a standalone message. I think that Microsoft's Office 2003 help system is horrible, probably...
1
by: trunxnirvana007 | last post by:
'UPGRADE_WARNING: Array has a new behavior. Click for more: 'ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?keyword="9B7D5ADD-D8FE-4819-A36C-6DEDAF088CC7"' 'UPGRADE_WARNING: Couldn't resolve...
0
by: hitencontractor | last post by:
I am working on .NET Version 2003 making an SDI application that calls MS Excel 2003. I added a menu item called "MyApp Help" in the end of the menu bar to show Help-> About. The application...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
1
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
1
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
1
by: Shællîpôpï 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.