/// <summary>
/// Initialize network range.
/// </summary>
/// <param name="networkAddr">Network address.</param>
/// <param name="broadcastAddr">Broadcast address.</param>
/// <param name="prefix">Prefix number is less than 32.</param>
/// <param name="subnetBit">Borrowed bits.</param>
/// <param name="ipClass">Class of IPv4 address.</param>
public NetworkRange(IPv4Address networkAddr, IPv4Address broadcastAddr, int prefix, int subnetBit, IPv4Class ipClass)
{
NetworkIDAddress = networkAddr;
Prefix = prefix;
SubnetBit = subnetBit;
Class = ipClass;
}
public static string ToSubnetBitmap(string binary, int prefix, int subnetBit, IPv4Class ipClass)
{
StringBuilder subnetBitmap = new StringBuilder(binary);
for (int i = 31; i > 0; i--)
{
if (i > prefix + subnetBit - 1)
subnetBitmap[i] = 'H';
else if (i > prefix - 1)
subnetBitmap[i] = 'S';
else if (i > 2
|| (i == 2 && ipClass < IPv4Class.C)
|| (i == 1 && ipClass < IPv4Class.B))
subnetBitmap[i] = 'N';
}
return AddDotSeparator(subnetBitmap.ToString());
}
/// <summary>
/// Initialize subnet mask with IPv4 class.
/// </summary>
/// <param name="ipClass">IPv4 class.</param>
public SubnetMask(IPv4Class ipClass = IPv4Class.A)
{
switch (ipClass)
{
case IPv4Class.A:
Prefix = 8;
break;
case IPv4Class.B:
Prefix = 16;
break;
case IPv4Class.C:
Prefix = 24;
break;
default:
Prefix = 32;
break;
}
}
private static string ToFirstOctetRange(IPv4Class ipClass)
{
switch (ipClass)
{
case IPv4Class.A:
return "1 - 127";
case IPv4Class.B:
return "128 - 191";
case IPv4Class.C:
return "192 - 223";
case IPv4Class.D:
return "224 - 239";
case IPv4Class.E:
return "240 - 255";
default:
return null;
}
}
private static string ToClass(IPv4Class ipClass)
{
switch (ipClass)
{
case IPv4Class.A:
return "A";
case IPv4Class.B:
return "B";
case IPv4Class.C:
return "C";
case IPv4Class.D:
return "D";
case IPv4Class.E:
return "E";
default:
return null;
}
}
/// <summary>
/// Convert IPv4Class to default prefix number.
/// </summary>
/// <param name="ipClass">IPv4 class.</param>
/// <returns></returns>
public static int ToPrefix(IPv4Class ipClass)
{
switch (ipClass)
{
case IPv4Class.A:
return 8;
case IPv4Class.B:
return 16;
case IPv4Class.C:
return 24;
case IPv4Class.D:
return 32;
case IPv4Class.E:
return 32;
default:
return 0;
}
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="addr">A string of IPv4 address. It looks like 192.168.0.0.</param>
/// <param name="prefix">An integer number less than 32.</param>
/// <param name="ipClass">Class of IPv4 address.</param>
public IPv4Address(string addr, int prefix, IPv4Class ipClass)
: base(addr)
{
_mask = new NetworkMask(prefix);
_class = ipClass;
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="addr">A string of IPv4 address. It looks like 192.168.0.0.</param>
/// <param name="prefix">An integer number less than 32.</param>
public IPv4Address(string addr, int prefix)
: base(addr)
{
_mask = new NetworkMask(prefix);
_class = ToNetworkClass(_octet);
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="addr">A string of IPv4 address. It looks like 192.168.0.0.</param>
/// <param name="subnetMask">A string of subnet mask of IPv4 address. It looks like 255.255.255.0.</param>
/// <param name="ipClass">Class of IPv4 address.</param>
public IPv4Address(string addr, string subnetMask, IPv4Class ipClass)
: base(addr)
{
_mask = new NetworkMask(subnetMask);
_class = ipClass;
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="addr">A string of IPv4 address. It looks like 192.168.0.0.</param>
/// <param name="subnetMask">A string of subnet mask of IPv4 address. It looks like 255.255.255.0.</param>
public IPv4Address(string addr, string subnetMask)
: base(addr)
{
_mask = new NetworkMask(subnetMask);
_class = ToNetworkClass(_octet);
}
/// <summary>
/// Sets address with decimal value of octets.
/// </summary>
/// <param name="octet1">The first octet.</param>
/// <param name="octet2">The second octet.</param>
/// <param name="octet3">The third octet.</param>
/// <param name="octet4">The fourth octet.</param>
public override void SetAddress(int octet1, int octet2, int octet3, int octet4)
{
base.SetAddress(octet1, octet2, octet3, octet4);
_mask = new NetworkMask(_octet);
_class = ToNetworkClass(_octet);
}
/// <summary>
/// Initialize IPv4 address with IPv4 class.
/// </summary>
/// <param name="ipClass">Class of IPv4 address.</param>
public IPv4Address(IPv4Class ipClass)
{
_class = ipClass;
switch (_class)
{
case IPv4Class.A:
Octet = ToOctet(1, 0, 0, 0);
_mask = new NetworkMask(8);
break;
case IPv4Class.B:
Octet = ToOctet(128, 0, 0, 0);
_mask = new NetworkMask(16);
break;
case IPv4Class.C:
Octet = ToOctet(192, 0, 0, 0);
_mask = new NetworkMask(24);
break;
case IPv4Class.D:
Octet = ToOctet(224, 0, 0, 0);
_mask = new NetworkMask(32);
break;
case IPv4Class.E:
Octet = ToOctet(240, 0, 0, 0);
_mask = new NetworkMask(32);
break;
default:
break;
}
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="addr">An array of octet of IPv4 address.</param>
/// <param name="subnetMask">Subnet mask of IPv4 address.</param>
/// <param name="ipClass">Class of IPv4 address.</param>
public IPv4Address(Octet[] addr, SubnetMask subnetMask, IPv4Class ipClass)
{
Octet = addr;
_mask = new NetworkMask(subnetMask);
_class = ipClass;
}
/// <summary>
/// Initialize IPv4 address
/// </summary>
/// <param name="octet1">The first octet.</param>
/// <param name="octet2">The second octet.</param>
/// <param name="octet3">The third octet.</param>
/// <param name="octet4">The fourth octet.</param>
public IPv4Address(int octet1, int octet2, int octet3, int octet4)
: base(octet1, octet2, octet3, octet4)
{
_mask = new NetworkMask(_octet);
_class = ToNetworkClass(_octet);
}
