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Add Method (IPFilters)

Summary

Adds an IP Filter to the collection.

Syntax

C#
VB
C++
public void Add(  
   string ipfirst, 
   string iplast, 
   bool allow 
) 
Public Sub Add( _ 
   ByVal ipfirst As String, _ 
   ByVal iplast As String, _ 
   ByVal allow As Boolean _ 
)  
public: 
void Add(  
   String^ ipfirst, 
   String^ iplast, 
   bool allow 
)  

Parameters

ipfirst
String containing the starting IP address of the IP filter (inclusive).

iplast
String containing the ending IP address of the IP filter (inclusive).

allow
Boolean value that indicates whether to allow connections in the specified IP address range.

Remarks

When you add an IP filter it is combined with the existing filters in the collection. The resulting collection is always a normalized list covering the complete IP address range. Call Count to obtain the resulting collection's IP filter count.

If the method fails, an error is raised. For more information, refer to the Error Codes.

Example

C#
VB
using Leadtools; 
using Leadtools.MediaStreaming; 
 
 
public Server _server = null; 
public bool _result = false; 
 
public void SetLocalNetworkFilterExample() 
{ 
   try 
   { 
      // this routine will set up an IP filter that only allows local network connections 
 
 
 
      string ipfirst = ""; 
      string iplast = ""; 
 
      // create an instance of the server object 
      _server = new Leadtools.MediaStreaming.Server(); 
 
      // retrieve a copy of the IP Filters 
      IPFilters filters = _server.GetIPFilters(); 
 
      // create a full range blacklist 
      // equivalent to filters.Add("0.0.0.0", "255.255.255.255", false); 
 
      // create a full range whitelist 
      filters.Reset(); 
 
      // invert the single whitelist filter to create the blacklist 
      filters.Remove(0); 
 
      { 
         // obtain the server�s IP address and create the filter range 
         NetworkProperties props = _server.GetNetworkProperties(); 
 
         string str = props.ActualIPAddress; 
         int n = str.LastIndexOf("."); 
 
         ipfirst = str.Substring(0, n) + ".0"; 
         iplast = str.Substring(0, n) + ".255"; 
      } 
 
      // now add a filter to allow for the local network IP range 
      filters.Add(ipfirst, iplast, true); 
 
      // copy the filters to the server 
      _server.SetIPFilters(filters); 
 
      _result = true; 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
Imports Leadtools 
Imports Leadtools.MediaStreaming 
 
 
Public _server As Server = Nothing 
Public _result As Boolean = False 
 
Public Sub SetLocalNetworkFilterExample() 
   Try 
      ' this routine will set up an IP filter that only allows local network connections 
 
 
 
      Dim ipfirst As String = "" 
      Dim iplast As String = "" 
 
      ' create an instance of the server object 
      _server = New Leadtools.MediaStreaming.Server() 
 
      ' retrieve a copy of the IP Filters 
      Dim filters As IPFilters = _server.GetIPFilters() 
 
      ' create a full range blacklist 
      ' equivalent to filters.Add("0.0.0.0", "255.255.255.255", false); 
 
      ' create a full range whitelist 
      filters.Reset() 
 
      ' invert the single whitelist filter to create the blacklist 
      filters.Remove(0) 
 
      ' obtain the server�s IP address and create the filter range 
      Dim props As NetworkProperties = _server.GetNetworkProperties() 
 
      Dim str As String = props.ActualIPAddress 
      Dim n As Integer = str.LastIndexOf(".") 
 
      ipfirst = str.Substring(0, n) & ".0" 
      iplast = str.Substring(0, n) & ".255" 
 
      ' now add a filter to allow for the local network IP range 
      filters.Add(ipfirst, iplast, True) 
 
      ' copy the filters to the server 
      _server.SetIPFilters(filters) 
 
      _result = True 
   Catch e1 As Exception 
      _result = False 
   End Try 
End Sub 

Requirements

Target Platforms

See Also

Reference

IPFilters Class

IPFilters Members

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Leadtools.MediaStreaming Assembly