private List <string> ScanRange(string ip)
{
var adjacent = NetworkUtils.AdjacentIPs(ip);
//Debug.WriteLine("Got IPs: " + adjacent.MkString(", "));
var middle = adjacent.Count / 2;
var left = adjacent.Take(middle);
var right = adjacent.Skip(middle).ToList();
return(Lists.Interleave <string>(left.Reverse().ToList(), right));
}