diff --git a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/ConnectionPool/HttpConnectionPool.Http3.cs b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/ConnectionPool/HttpConnectionPool.Http3.cs
index 4af02bb397abdb..140e3ea2c03604 100644
--- a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/ConnectionPool/HttpConnectionPool.Http3.cs
+++ b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/ConnectionPool/HttpConnectionPool.Http3.cs
@@ -756,7 +756,7 @@ internal void HandleAltSvc(IEnumerable<string> altSvcHeaderValues, TimeSpan? res
 
                 if (!nextAuthorityPersist)
                 {
-#if !ILLUMOS && !SOLARIS
+#if !ILLUMOS && !SOLARIS && !HAIKU
                     _poolManager.StartMonitoringNetworkChanges();
 #endif
                 }
diff --git a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/HttpConnectionPoolManager.cs b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/HttpConnectionPoolManager.cs
index a696e153ca5c89..b99f9e719c897e 100644
--- a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/HttpConnectionPoolManager.cs
+++ b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/HttpConnectionPoolManager.cs
@@ -44,7 +44,7 @@ internal sealed class HttpConnectionPoolManager : IDisposable
         private readonly IWebProxy? _proxy;
         private readonly ICredentials? _proxyCredentials;
 
-#if !ILLUMOS && !SOLARIS
+#if !ILLUMOS && !SOLARIS && !HAIKU
         private NetworkChangeCleanup? _networkChangeCleanup;
 #endif
 
@@ -139,7 +139,7 @@ public HttpConnectionPoolManager(HttpConnectionSettings settings)
             }
         }
 
-#if !ILLUMOS && !SOLARIS
+#if !ILLUMOS && !SOLARIS && !HAIKU
         /// <summary>
         /// Starts monitoring for network changes. Upon a change, <see cref="HttpConnectionPool.OnNetworkChanged"/> will be
         /// called for every <see cref="HttpConnectionPool"/> in the <see cref="HttpConnectionPoolManager"/>.
@@ -457,7 +457,7 @@ public void Dispose()
                 pool.Value.Dispose();
             }
 
-#if !ILLUMOS && !SOLARIS
+#if !ILLUMOS && !SOLARIS && !HAIKU
             _networkChangeCleanup?.Dispose();
 #endif
         }
diff --git a/src/libraries/System.Net.NetworkInformation/ref/System.Net.NetworkInformation.cs b/src/libraries/System.Net.NetworkInformation/ref/System.Net.NetworkInformation.cs
index 8824cccc08e929..171b68cea1ad1d 100644
--- a/src/libraries/System.Net.NetworkInformation/ref/System.Net.NetworkInformation.cs
+++ b/src/libraries/System.Net.NetworkInformation/ref/System.Net.NetworkInformation.cs
@@ -178,6 +178,7 @@ protected IPGlobalProperties() { }
         public abstract System.Net.NetworkInformation.IcmpV6Statistics GetIcmpV6Statistics();
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static System.Net.NetworkInformation.IPGlobalProperties GetIPGlobalProperties() { throw null; }
         public abstract System.Net.NetworkInformation.IPGlobalStatistics GetIPv4GlobalStatistics();
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("freebsd")]
@@ -401,9 +402,11 @@ public partial class NetworkChange
         public NetworkChange() { }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static event System.Net.NetworkInformation.NetworkAddressChangedEventHandler? NetworkAddressChanged { add { } remove { } }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static event System.Net.NetworkInformation.NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged { add { } remove { } }
         [System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
         [System.ObsoleteAttribute("This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.", true)]
@@ -425,10 +428,12 @@ protected NetworkInterface() { }
         public virtual string Id { get { throw null; } }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static int IPv6LoopbackInterfaceIndex { get { throw null; } }
         public virtual bool IsReceiveOnly { get { throw null; } }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static int LoopbackInterfaceIndex { get { throw null; } }
         public virtual string Name { get { throw null; } }
         public virtual System.Net.NetworkInformation.NetworkInterfaceType NetworkInterfaceType { get { throw null; } }
@@ -437,6 +442,7 @@ protected NetworkInterface() { }
         public virtual bool SupportsMulticast { get { throw null; } }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static System.Net.NetworkInformation.NetworkInterface[] GetAllNetworkInterfaces() { throw null; }
         public virtual System.Net.NetworkInformation.IPInterfaceProperties GetIPProperties() { throw null; }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("android")]
@@ -445,6 +451,7 @@ protected NetworkInterface() { }
         public virtual System.Net.NetworkInformation.IPv4InterfaceStatistics GetIPv4Statistics() { throw null; }
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("illumos")]
         [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("solaris")]
+        [System.Runtime.Versioning.UnsupportedOSPlatformAttribute("haiku")]
         public static bool GetIsNetworkAvailable() { throw null; }
         public virtual System.Net.NetworkInformation.PhysicalAddress GetPhysicalAddress() { throw null; }
         public virtual bool Supports(System.Net.NetworkInformation.NetworkInterfaceComponent networkInterfaceComponent) { throw null; }
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalProperties.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalProperties.cs
index 1a78c1dd3e8b6b..55f6aebb1a741c 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalProperties.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalProperties.cs
@@ -14,6 +14,7 @@ public abstract class IPGlobalProperties
     {
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static IPGlobalProperties GetIPGlobalProperties()
         {
             return IPGlobalPropertiesPal.GetIPGlobalProperties();
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalPropertiesPal.UnknownUnix.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalPropertiesPal.UnknownUnix.cs
index 4ac2f044409628..e2f8aa3428258d 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalPropertiesPal.UnknownUnix.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/IPGlobalPropertiesPal.UnknownUnix.cs
@@ -9,6 +9,7 @@ internal static class IPGlobalPropertiesPal
     {
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static IPGlobalProperties GetIPGlobalProperties()
         {
             throw new PlatformNotSupportedException();
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Android.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Android.cs
index e6cb7995803147..3783ee9bdbcf0d 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Android.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Android.cs
@@ -20,6 +20,7 @@ public partial class NetworkChange
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
         {
             add
@@ -63,6 +64,7 @@ public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged
         {
             add
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.OSX.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.OSX.cs
index 94f9d435aecbee..6d303bf6664710 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.OSX.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.OSX.cs
@@ -40,6 +40,7 @@ public partial class NetworkChange
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
         {
             add
@@ -79,6 +80,7 @@ public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged
         {
             add
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Unix.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Unix.cs
index 38913da8292faa..9acabb871258e5 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Unix.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Unix.cs
@@ -46,6 +46,7 @@ private static Socket? Socket
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
         {
             add
@@ -88,6 +89,7 @@ public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged
         {
             add
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.UnknownUnix.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.UnknownUnix.cs
index bc0df09d18ac7c..0e7907d1d6b116 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.UnknownUnix.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.UnknownUnix.cs
@@ -18,6 +18,7 @@ public NetworkChange()
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
         {
             add { throw new PlatformNotSupportedException(); }
@@ -26,6 +27,7 @@ public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged
         {
             add { throw new PlatformNotSupportedException(); }
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Windows.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Windows.cs
index 8499eac6b16607..134d94d97bf705 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Windows.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkAddressChange.Windows.cs
@@ -15,6 +15,7 @@ public partial class NetworkChange
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityChanged
         {
             add
@@ -29,6 +30,7 @@ public static event NetworkAvailabilityChangedEventHandler? NetworkAvailabilityC
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static event NetworkAddressChangedEventHandler? NetworkAddressChanged
         {
             add
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterface.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterface.cs
index 24f02186c3dc3a..c36de6a05e5613 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterface.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterface.cs
@@ -13,6 +13,7 @@ public abstract class NetworkInterface
         /// <returns>An array of all network interfaces on the local computer.</returns>
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static NetworkInterface[] GetAllNetworkInterfaces()
         {
             return NetworkInterfacePal.GetAllNetworkInterfaces();
@@ -20,6 +21,7 @@ public static NetworkInterface[] GetAllNetworkInterfaces()
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static bool GetIsNetworkAvailable()
         {
             return NetworkInterfacePal.GetIsNetworkAvailable();
@@ -27,6 +29,7 @@ public static bool GetIsNetworkAvailable()
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static int IPv6LoopbackInterfaceIndex
         {
             get
@@ -37,6 +40,7 @@ public static int IPv6LoopbackInterfaceIndex
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static int LoopbackInterfaceIndex
         {
             get
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterfacePal.UnknownUnix.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterfacePal.UnknownUnix.cs
index 647662c539f7b2..2873569b299a94 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterfacePal.UnknownUnix.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/NetworkInterfacePal.UnknownUnix.cs
@@ -10,6 +10,7 @@ internal static class NetworkInterfacePal
         /// Returns objects that describe the network interfaces on the local computer.
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static NetworkInterface[] GetAllNetworkInterfaces()
         {
             throw new PlatformNotSupportedException();
@@ -17,6 +18,7 @@ public static NetworkInterface[] GetAllNetworkInterfaces()
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static bool GetIsNetworkAvailable()
         {
             throw new PlatformNotSupportedException();
@@ -24,6 +26,7 @@ public static bool GetIsNetworkAvailable()
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static int IPv6LoopbackInterfaceIndex
         {
             get { throw new PlatformNotSupportedException(); }
@@ -31,6 +34,7 @@ public static int IPv6LoopbackInterfaceIndex
 
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public static int LoopbackInterfaceIndex
         {
             get { throw new PlatformNotSupportedException(); }
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixIPGlobalProperties.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixIPGlobalProperties.cs
index 2ab82486ec99ab..39365b0e196a40 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixIPGlobalProperties.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixIPGlobalProperties.cs
@@ -20,6 +20,7 @@ internal abstract class UnixIPGlobalProperties : IPGlobalProperties
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override string DhcpScopeName { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         public override string DomainName { get { return HostInformation.DomainName; } }
@@ -34,6 +35,7 @@ internal abstract class UnixIPGlobalProperties : IPGlobalProperties
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override bool IsWinsProxy { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         public override NetBiosNodeType NodeType { get { return NetBiosNodeType.Unknown; } }
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixMulticastIPAddressInformation.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixMulticastIPAddressInformation.cs
index f28ec4b4401dd0..911b19fee9e193 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixMulticastIPAddressInformation.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixMulticastIPAddressInformation.cs
@@ -23,6 +23,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override bool IsDnsEligible { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -32,6 +33,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override bool IsTransient { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -41,6 +43,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long AddressPreferredLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -50,6 +53,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long AddressValidLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -59,6 +63,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long DhcpLeaseLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -68,6 +73,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override DuplicateAddressDetectionState DuplicateAddressDetectionState { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -77,6 +83,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override PrefixOrigin PrefixOrigin { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         [UnsupportedOSPlatform("linux")]
@@ -86,6 +93,7 @@ public UnixMulticastIPAddressInformation(IPAddress address)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override SuffixOrigin SuffixOrigin { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
     }
 }
diff --git a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixUnicastIPAddressInformation.cs b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixUnicastIPAddressInformation.cs
index c3a46ac1fb9d54..1e00900dee2c5c 100644
--- a/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixUnicastIPAddressInformation.cs
+++ b/src/libraries/System.Net.NetworkInformation/src/System/Net/NetworkInformation/UnixUnicastIPAddressInformation.cs
@@ -28,6 +28,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override bool IsDnsEligible { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// Gets a bool value that indicates whether the Internet Protocol (IP) address is transient.
@@ -38,6 +39,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override bool IsTransient { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// [To be supplied.]
@@ -48,6 +50,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long AddressPreferredLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// [To be supplied.]
@@ -58,6 +61,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long AddressValidLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// Specifies the amount of time remaining on the Dynamic Host Configuration Protocol (DHCP) lease for this IP address.
@@ -68,6 +72,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override long DhcpLeaseLifetime { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// Gets a value that indicates the state of the duplicate address detection algorithm.
@@ -78,6 +83,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override DuplicateAddressDetectionState DuplicateAddressDetectionState { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// Gets a value that identifies the source of a unicast IP address prefix.
@@ -88,6 +94,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override PrefixOrigin PrefixOrigin { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         /// Gets a value that identifies the source of a unicast IP address suffix.
@@ -98,6 +105,7 @@ public UnixUnicastIPAddressInformation(IPAddress address, int prefixLength)
         [UnsupportedOSPlatform("freebsd")]
         [UnsupportedOSPlatform("illumos")]
         [UnsupportedOSPlatform("solaris")]
+        [UnsupportedOSPlatform("haiku")]
         public override SuffixOrigin SuffixOrigin { get { throw new PlatformNotSupportedException(SR.net_InformationUnavailableOnPlatform); } }
 
         public override IPAddress IPv4Mask