public SubmitIPAddressCommand(IPAddressViewModel viewModel)
{
_viewModel = viewModel;
}
public List <IPAddressPool> GenerateIPBeforeLast(string ipSource, int bitCount)
{
var bitMod = bitCount % 8;
var heads = new List <int>();
var headCount = (int)Math.Pow(2, bitMod);
var headBase = (int)Math.Pow(2, 8 - bitMod);
for (var i = 0; i < headCount; i++)
{
heads.Add(headBase * i);
}
var ipTemplate = new IPAddressViewModel(ipSource);
var result = new List <IPAddressPool>();
var subnetMask = GenerateSubnetMask(bitCount);
var count = 0;
var startIndex = 0;
var compareValue = ipTemplate.Fourth;
for (var i = 0; i < heads.Count - 1; i++)
{
if (heads[i] <= compareValue && compareValue < heads[i + 1])
{
startIndex = heads[i];
break;
}
else if (heads[i] <= compareValue && compareValue <= 255)
{
startIndex = heads[i + 1];
}
}
for (var i = startIndex; i < 256 && count < 2; i++)
{
if (heads.Contains(i))
{
count++;
if (count < 2)
{
ipTemplate.Fourth = i;
var ip = new IPAddressPool
{
IPAddress = ipTemplate.ToString(),
Subnetmask = subnetMask
};
result.Add(ip);
}
}
else
{
ipTemplate.Fourth = i;
var ip = new IPAddressPool
{
IPAddress = ipTemplate.ToString(),
Subnetmask = subnetMask
};
result.Add(ip);
}
}
int k = result.Count - 2;
for (int i = 0; i < result.Count; i++)
{
result[i].Gateway = result[k].IPAddress;
result[i].NetworkIP = result[0].IPAddress;
}
return(result);
}
