如何获取子网中所有活动机器的ip地址？

Question

http://www.csdn.net/develop/read_article.asp?id=16084

Answer 1

DirectoryEntry root = new DirectoryEntry("WinNT:"); 
DirectoryEntries domains = root.Children;
domains.SchemaFilter.Add("domain");
TreeNode treeRoot=new TreeNode();
treeRoot.Text ="局域网";
tree1.Nodes.Add(treeRoot);
foreach (DirectoryEntry domain in domains)
{
TreeNode child=new TreeNode (domain.Name );
treeRoot.Nodes .Add (child);
DirectoryEntries computers = domain.Children;
int i=computers.SchemaFilter.Add("Computer");
foreach (DirectoryEntry computer in domain.Children )
{
TreeNode subChildren=new TreeNode (computer.Name );
child.Nodes.Add (subChildren);
}
}

Answer 2

ping你计算机所在的网段
http://www.csdn.net/Develop/My_Article.asp