﻿<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp" xmlns:mshelp="http://msdn.microsoft.com/mshelp"><head><link rel="SHORTCUT ICON" href="./../icons/favicon.ico" /><style type="text/css">.OH_CodeSnippetContainerTabLeftActive, .OH_CodeSnippetContainerTabLeft,.OH_CodeSnippetContainerTabLeftDisabled { backgroundImageName: tabLeftBG.gif; }.OH_CodeSnippetContainerTabRightActive, .OH_CodeSnippetContainerTabRight,.OH_CodeSnippetContainerTabRightDisabled { backgroundImageName: tabRightBG.gif; }.OH_footer { backgroundImageName: footer_slice.gif; background-position: top; background-repeat: repeat-x; }</style><link rel="stylesheet" type="text/css" href="./../styles/branding.css" /><link rel="stylesheet" type="text/css" href="./../styles/branding-en-US.css" /><style type="text/css">
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             Sends logging events as connectionless UDP datagrams to a remote host or a 
             multicast group using an <img src="./../icons/online_icon.gif" class="OH_offlineIcon" alt="Online" title="Online" /><a href="http://msdn2.microsoft.com/en-us/library/9wkb9k12" target="_blank">UdpClient</a>.
             </div><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Inheritance Hierarchy</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><img src="./../icons/online_icon.gif" class="OH_offlineIcon" alt="Online" title="Online" /><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span id="ID0EBKOAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBKOAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
				</script>Object</a><br />  <a href="T_log4net_Appender_AppenderSkeleton.htm" target="">log4net.Appender<span id="ID0EBHOAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBHOAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
				</script>AppenderSkeleton</a><br />    <span class="selflink">log4net.Appender<span id="ID0EBEOAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBEOAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
				</script>UdpAppender</span><br />      <a href="T_log4net_Appender_RemoteSyslogAppender.htm" target="">log4net.Appender<span id="ID0EBBOAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBBOAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
				</script>RemoteSyslogAppender</a><br /><p></p><b>Namespace:</b> <a href="N_log4net_Appender.htm" target="">log4net.Appender</a><br /><b>Assembly:</b> <span sdata="assembly">log4net</span> (in log4net.dll) Version: 1.2.14.0 (1.2.14.0)<div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Syntax</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><div id="snippetGroup_Syntax" class="code"><div id="ID0ECAEAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0ECAEAAAAA_tabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0ECAEAAAAA_tabimgleft"></div><div id="ID0ECAEAAAAA_tab1" class="OH_CodeSnippetContainerTabActive" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECAEAAAAA','C#','1','4');return false;">C#</a></div><div id="ID0ECAEAAAAA_tab2" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECAEAAAAA','Visual Basic','2','4');return false;">VB</a></div><div id="ID0ECAEAAAAA_tab3" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECAEAAAAA','Visual C++','3','4');return false;">C++</a></div><div id="ID0ECAEAAAAA_tab4" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0ECAEAAAAA_tabimgright"></div></div><div id="ID0ECAEAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0ECAEAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0ECAEAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0ECAEAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0ECAEAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0ECAEAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0ECAEAAAAA','4')" title="Print">Print</a></div></div><div id="ID0ECAEAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre><span class="keyword">public</span> <span class="keyword">class</span> <span class="identifier">UdpAppender</span> : <span class="identifier">AppenderSkeleton</span></pre></div><div id="ID0ECAEAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public class UdpAppender : AppenderSkeleton</pre></div><div id="ID0ECAEAAAAA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre><span class="keyword">Public</span> <span class="keyword">Class</span> <span class="identifier">UdpAppender</span> 
	<span class="keyword">Inherits</span> <span class="identifier">AppenderSkeleton</span></pre></div><div id="ID0ECAEAAAAA_code_Plain_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre>Public Class UdpAppender 
	Inherits AppenderSkeleton</pre></div><div id="ID0ECAEAAAAA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">UdpAppender</span> : <span class="keyword">public</span> <span class="identifier">AppenderSkeleton</span></pre></div><div id="ID0ECAEAAAAA_code_Plain_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public ref class UdpAppender : public AppenderSkeleton</pre></div><div id="ID0ECAEAAAAA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0ECAEAAAAA_code_Plain_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div></div></div><script>addSpecificTextLanguageTagSet('ID0ECAEAAAAA');</script></div><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Remarks</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><p>
             UDP guarantees neither that messages arrive, nor that they arrive in the correct order.
             </p><p>
             To view the logging results, a custom application can be developed that listens for logging 
             events.
             </p><p>
             When decoding events send via this appender remember to use the same encoding
             to decode the events as was used to send the events. See the <a href="P_log4net_Appender_UdpAppender_Encoding.htm" target="">Encoding</a>
             property to specify the encoding to use.
             </p><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Examples</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div>
             This example shows how to log receive logging events that are sent 
             on IP address 244.0.0.1 and port 8080 to the console. The event is 
             encoded in the packet as a unicode string and it is decoded as such. 
             <div id="ID0EDCAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0EDCAAAAA_tabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0EDCAAAAA_tabimgleft"></div><div id="ID0EDCAAAAA_tab1" class="OH_CodeSnippetContainerTabActive" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0EDCAAAAA','C#','1','4');return false;">C#</a></div><div id="ID0EDCAAAAA_tab2" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>VB</a></div><div id="ID0EDCAAAAA_tab3" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>C++</a></div><div id="ID0EDCAAAAA_tab4" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0EDCAAAAA_tabimgright"></div></div><div id="ID0EDCAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EDCAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0EDCAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0EDCAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0EDCAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0EDCAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0EDCAAAAA','4')" title="Print">Print</a></div></div><div id="ID0EDCAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre>IPEndPoint remoteEndPoint = <span class="highlight-keyword">new</span> IPEndPoint(IPAddress.Any, <span class="highlight-number">0</span>);
UdpClient udpClient;
<span class="highlight-keyword">byte</span>[] buffer;
<span class="highlight-keyword">string</span> loggingEvent;

<span class="highlight-keyword">try</span> 
{
    udpClient = <span class="highlight-keyword">new</span> UdpClient(<span class="highlight-number">8080</span>);

    <span class="highlight-keyword">while</span>(<span class="highlight-keyword">true</span>) 
    {
        buffer = udpClient.Receive(<span class="highlight-keyword">ref</span> remoteEndPoint);
        loggingEvent = System.Text.Encoding.Unicode.GetString(buffer);
        Console.WriteLine(loggingEvent);
    }
} 
<span class="highlight-keyword">catch</span>(Exception e) 
{
    Console.WriteLine(e.ToString());
}</pre></div><div id="ID0EDCAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>IPEndPoint remoteEndPoint = new IPEndPoint(IPAddress.Any, 0);
UdpClient udpClient;
byte[] buffer;
string loggingEvent;

try 
{
    udpClient = new UdpClient(8080);

    while(true) 
    {
        buffer = udpClient.Receive(ref remoteEndPoint);
        loggingEvent = System.Text.Encoding.Unicode.GetString(buffer);
        Console.WriteLine(loggingEvent);
    }
} 
catch(Exception e) 
{
    Console.WriteLine(e.ToString());
}</pre></div><div id="ID0EDCAAAAA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0EDCAAAAA_code_Plain_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0EDCAAAAA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0EDCAAAAA_code_Plain_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0EDCAAAAA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0EDCAAAAA_code_Plain_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div></div></div><script>addSpecificTextLanguageTagSet('ID0EDCAAAAA');</script><div id="ID0ECCAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0ECCAAAAA_tabs"></div><div id="ID0ECCAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0ECCAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0ECCAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0ECCAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0ECCAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0ECCAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0ECCAAAAA','4')" title="Print">Print</a></div></div><div id="ID0ECCAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre>Dim remoteEndPoint as IPEndPoint
Dim udpClient as UdpClient
Dim buffer as Byte()
Dim loggingEvent as String

Try 
    remoteEndPoint = new IPEndPoint(IPAddress.Any, 0)
    udpClient = new UdpClient(8080)

    While True
        buffer = udpClient.Receive(ByRef remoteEndPoint)
        loggingEvent = System.Text.Encoding.Unicode.GetString(buffer)
        Console.WriteLine(loggingEvent)
    Wend
Catch e As Exception
    Console.WriteLine(e.ToString())
End Try</pre></div><div id="ID0ECCAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>Dim remoteEndPoint as IPEndPoint
Dim udpClient as UdpClient
Dim buffer as Byte()
Dim loggingEvent as String

Try 
    remoteEndPoint = new IPEndPoint(IPAddress.Any, 0)
    udpClient = new UdpClient(8080)

    While True
        buffer = udpClient.Receive(ByRef remoteEndPoint)
        loggingEvent = System.Text.Encoding.Unicode.GetString(buffer)
        Console.WriteLine(loggingEvent)
    Wend
Catch e As Exception
    Console.WriteLine(e.ToString())
End Try</pre></div></div></div><script>addSpecificTextLanguageTagSet('ID0ECCAAAAA');</script><p>
             An example configuration section to log information using this appender to the 
             IP 224.0.0.1 on port 8080:
             </p><div id="ID0EACAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0EACAAAAA_tabs"><div class="OH_CodeSnippetContainerTabLeft" id="ID0EACAAAAA_tabimgleft"></div><div id="ID0EACAAAAA_tab1" class="OH_CodeSnippetContainerTabSolo" EnableCopyCode="true"><a xmlns="">XML</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0EACAAAAA_tabimgright"></div></div><div id="ID0EACAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EACAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0EACAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0EACAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0EACAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0EACAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0EACAAAAA','4')" title="Print">Print</a></div></div><div id="ID0EACAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre><span class="highlight-xml-bracket">&lt;</span><span class="highlight-xml-tag">appender</span> <span class="highlight-xml-attribute-name">name</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"UdpAppender"</span> <span class="highlight-xml-attribute-name">type</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"log4net.Appender.UdpAppender"</span><span class="highlight-xml-bracket">&gt;</span><span class="highlight-xml-bracket">&lt;</span><span class="highlight-xml-tag">remoteAddress</span> <span class="highlight-xml-attribute-name">value</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"224.0.0.1"</span> <span class="highlight-xml-bracket">/&gt;</span><span class="highlight-xml-bracket">&lt;</span><span class="highlight-xml-tag">remotePort</span> <span class="highlight-xml-attribute-name">value</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"8080"</span> <span class="highlight-xml-bracket">/&gt;</span><span class="highlight-xml-bracket">&lt;</span><span class="highlight-xml-tag">layout</span> <span class="highlight-xml-attribute-name">type</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"log4net.Layout.PatternLayout"</span> <span class="highlight-xml-attribute-name">value</span><span class="highlight-xml-attribute-equal">=</span><span class="highlight-xml-attribute-value">"%-5level %logger [%ndc] - %message%newline"</span> <span class="highlight-xml-bracket">/&gt;</span><span class="highlight-xml-bracket">&lt;/</span><span class="highlight-xml-tag">appender</span><span class="highlight-xml-bracket">&gt;</span></pre></div><div id="ID0EACAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>&lt;appender name="UdpAppender" type="log4net.Appender.UdpAppender"&gt;&lt;remoteAddress value="224.0.0.1" /&gt;&lt;remotePort value="8080" /&gt;&lt;layout type="log4net.Layout.PatternLayout" value="%-5level %logger [%ndc] - %message%newline" /&gt;&lt;/appender&gt;</pre></div></div></div><script>addSpecificTextLanguageTagSet('ID0EACAAAAA');</script><a name="seeAlsoSection"><!----></a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">See Also</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><div class="seeAlsoStyle"><a href="AllMembers_T_log4net_Appender_UdpAppender.htm" target="">UdpAppender Members</a></div><div class="seeAlsoStyle"><a href="N_log4net_Appender.htm" target="">log4net.Appender Namespace</a></div></div></div></div></div><div id="OH_footer" class="OH_footer"><p>Apache log4net, Apache and log4net are trademarks of The Apache Software Foundation.</p><p><a href="http://logging.apache.org/log4net/" target="_blank"><img src="./../icons/online_icon.gif" class="OH_offlineIcon" alt="Online" title="Online" /> 
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