<?xml version="1.0" encoding="utf-8"?>
<Type Name="IPStatus" FullName="System.Net.NetworkInformation.IPStatus">
  <TypeSignature Language="C#" Value="public enum IPStatus" />
  <TypeSignature Language="ILAsm" Value=".class public auto ansi sealed IPStatus extends System.Enum" />
  <AssemblyInfo>
    <AssemblyName>System</AssemblyName>
    <AssemblyVersion>2.0.0.0</AssemblyVersion>
    <AssemblyVersion>4.0.0.0</AssemblyVersion>
  </AssemblyInfo>
  <Base>
    <BaseTypeName>System.Enum</BaseTypeName>
  </Base>
  <Docs>
    <since version=".NET 2.0" />
    <remarks>
      <attribution license="cc4" from="Microsoft" modified="false" />
      <para>The <see cref="T:System.Net.NetworkInformation.Ping" /> class uses the values in this enumeration to set the <see cref="P:System.Net.NetworkInformation.PingReply.Status" /> property. The <see cref="T:System.Net.NetworkInformation.Ping" /> class returns <see cref="T:System.Net.NetworkInformation.PingReply" /> objects when you call the <see cref="Overload:System.Net.NetworkInformation.Ping.Send" /> or <see cref="Overload:System.Net.NetworkInformation.Ping.SendAsync" /> methods to check whether you can reach a computer across the network.</para>
      <block subset="none" type="note">
        <para>The <see cref="F:System.Net.NetworkInformation.IPStatus.DestinationProhibited" /> and <see cref="F:System.Net.NetworkInformation.IPStatus.DestinationProtocolUnreachable" /> enumeration values have the same numeric value. This is possible because <see cref="F:System.Net.NetworkInformation.IPStatus.DestinationProhibited" /> applies only to IPv6 and <see cref="F:System.Net.NetworkInformation.IPStatus.DestinationProtocolUnreachable" /> applies only to IPv4.</para>
      </block>
    </remarks>
    <summary>
      <attribution license="cc4" from="Microsoft" modified="false" />
      <para>Reports the status of sending an Internet Control Message Protocol (ICMP) echo message to a computer.</para>
    </summary>
  </Docs>
  <Members>
    <Member MemberName="BadDestination">
      <MemberSignature Language="C#" Value="BadDestination" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus BadDestination = int32(11018)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the destination IP address cannot receive ICMP echo requests or should never appear in the destination address field of any IP datagram. For example, calling <see cref="Overload:System.Net.NetworkInformation.Ping.Send" /> and specifying IP address "000.0.0.0" returns this status.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="BadHeader">
      <MemberSignature Language="C#" Value="BadHeader" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus BadHeader = int32(11042)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the header is invalid.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="BadOption">
      <MemberSignature Language="C#" Value="BadOption" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus BadOption = int32(11007)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because it contains an invalid option.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="BadRoute">
      <MemberSignature Language="C#" Value="BadRoute" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus BadRoute = int32(11012)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because there is no valid route between the source and destination computers.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationHostUnreachable">
      <MemberSignature Language="C#" Value="DestinationHostUnreachable" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationHostUnreachable = int32(11003)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the destination computer is not reachable.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationNetworkUnreachable">
      <MemberSignature Language="C#" Value="DestinationNetworkUnreachable" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationNetworkUnreachable = int32(11002)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the network that contains the destination computer is not reachable.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationPortUnreachable">
      <MemberSignature Language="C#" Value="DestinationPortUnreachable" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationPortUnreachable = int32(11005)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the port on the destination computer is not available.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationProhibited">
      <MemberSignature Language="C#" Value="DestinationProhibited" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationProhibited = int32(11004)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMPv6 echo request failed because contact with the destination computer is administratively prohibited. This value applies only to IPv6.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationProtocolUnreachable">
      <MemberSignature Language="C#" Value="DestinationProtocolUnreachable" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationProtocolUnreachable = int32(11004)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the destination computer that is specified in an ICMP echo message is not reachable, because it does not support the packet's protocol. This value applies only to IPv4. This value is described in IETF RFC 1812 as Communication Administratively Prohibited.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationScopeMismatch">
      <MemberSignature Language="C#" Value="DestinationScopeMismatch" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationScopeMismatch = int32(11045)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the source address and destination address that are specified in an ICMP echo message are not in the same scope. This is typically caused by a router forwarding a packet using an interface that is outside the scope of the source address. Address scopes (link-local, site-local, and global scope) determine where on the network an address is valid.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="DestinationUnreachable">
      <MemberSignature Language="C#" Value="DestinationUnreachable" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus DestinationUnreachable = int32(11040)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the destination computer that is specified in an ICMP echo message is not reachable; the exact cause of problem is unknown.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="HardwareError">
      <MemberSignature Language="C#" Value="HardwareError" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus HardwareError = int32(11008)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because of a hardware error.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="IcmpError">
      <MemberSignature Language="C#" Value="IcmpError" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus IcmpError = int32(11044)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because of an ICMP protocol error.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="NoResources">
      <MemberSignature Language="C#" Value="NoResources" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus NoResources = int32(11006)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because of insufficient network resources.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="PacketTooBig">
      <MemberSignature Language="C#" Value="PacketTooBig" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus PacketTooBig = int32(11009)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the packet containing the request is larger than the maximum transmission unit (MTU) of a node (router or gateway) located between the source and destination. The MTU defines the maximum size of a transmittable packet.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="ParameterProblem">
      <MemberSignature Language="C#" Value="ParameterProblem" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus ParameterProblem = int32(11015)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because a node (router or gateway) encountered problems while processing the packet header. This is the status if, for example, the header contains invalid field data or an unrecognized option.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="SourceQuench">
      <MemberSignature Language="C#" Value="SourceQuench" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus SourceQuench = int32(11016)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the packet was discarded. This occurs when the source computer's output queue has insufficient storage space, or when packets arrive at the destination too quickly to be processed.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Success">
      <MemberSignature Language="C#" Value="Success" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus Success = int32(0)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request succeeded; an ICMP echo reply was received. When you get this status code, the other <see cref="T:System.Net.NetworkInformation.PingReply" /> properties contain valid data.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="TimedOut">
      <MemberSignature Language="C#" Value="TimedOut" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus TimedOut = int32(11010)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo Reply was not received within the allotted time. The default time allowed for replies is 5 seconds. You can change this value using the <see cref="Overload:System.Net.NetworkInformation.Ping.Send" />  or <see cref="Overload:System.Net.NetworkInformation.Ping.SendAsync" /> methods that take a <paramref name="timeout" /> parameter.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="TimeExceeded">
      <MemberSignature Language="C#" Value="TimeExceeded" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus TimeExceeded = int32(11041)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because its Time to Live (TTL) value reached zero, causing the forwarding node (router or gateway) to discard the packet.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="TtlExpired">
      <MemberSignature Language="C#" Value="TtlExpired" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus TtlExpired = int32(11013)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because its Time to Live (TTL) value reached zero, causing the forwarding node (router or gateway) to discard the packet.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="TtlReassemblyTimeExceeded">
      <MemberSignature Language="C#" Value="TtlReassemblyTimeExceeded" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus TtlReassemblyTimeExceeded = int32(11014)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the packet was divided into fragments for transmission and all of the fragments were not received within the time allotted for reassembly. RFC 2460 (available at www.ietf.org) specifies 60 seconds as the time limit within which all packet fragments must be received.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="Unknown">
      <MemberSignature Language="C#" Value="Unknown" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus Unknown = int32(-1)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed for an unknown reason.</para>
        </summary>
      </Docs>
    </Member>
    <Member MemberName="UnrecognizedNextHeader">
      <MemberSignature Language="C#" Value="UnrecognizedNextHeader" />
      <MemberSignature Language="ILAsm" Value=".field public static literal valuetype System.Net.NetworkInformation.IPStatus UnrecognizedNextHeader = int32(11043)" />
      <MemberType>Field</MemberType>
      <AssemblyInfo>
        <AssemblyVersion>2.0.0.0</AssemblyVersion>
        <AssemblyVersion>4.0.0.0</AssemblyVersion>
      </AssemblyInfo>
      <ReturnValue>
        <ReturnType>System.Net.NetworkInformation.IPStatus</ReturnType>
      </ReturnValue>
      <Docs>
        <since version=".NET 2.0" />
        <summary>
          <attribution license="cc4" from="Microsoft" modified="false" />
          <para>The ICMP echo request failed because the Next Header field does not contain a recognized value. The Next Header field indicates the extension header type (if present) or the protocol above the IP layer, for example, TCP or UDP.</para>
        </summary>
      </Docs>
    </Member>
  </Members>
</Type>