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Imported Upstream version 5.18.0.142
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//
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// System.Net.NetworkInformation.NetworkInterface
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//
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// Authors:
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// Gonzalo Paniagua Javier (gonzalo@novell.com)
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// Atsushi Enomoto (atsushi@ximian.com)
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// Miguel de Icaza (miguel@novell.com)
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// Eric Butler (eric@extremeboredom.net)
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// Marek Habersack (mhabersack@novell.com)
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// Marek Safar (marek.safar@gmail.com)
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//
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// Copyright (c) 2006-2008 Novell, Inc. (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#if WIN_PLATFORM
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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namespace System.Net.NetworkInformation {
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internal class Win32NetworkInterfaceAPI : NetworkInterfaceFactory
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{
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private const string IPHLPAPI = "iphlpapi.dll";
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[DllImport (IPHLPAPI, SetLastError = true)]
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static extern int GetAdaptersAddresses (uint family, uint flags, IntPtr reserved, IntPtr info, ref int size);
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[DllImport (IPHLPAPI)]
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static extern uint GetBestInterfaceEx (byte[] ipAddress, out int index);
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static Win32_IP_ADAPTER_ADDRESSES [] GetAdaptersAddresses ()
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{
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IntPtr ptr = IntPtr.Zero;
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int len = 0;
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GetAdaptersAddresses (0, 0, IntPtr.Zero, ptr, ref len);
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ptr = Marshal.AllocHGlobal(len);
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int ret = GetAdaptersAddresses (0, 0, IntPtr.Zero, ptr, ref len);
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if (ret != 0)
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throw new NetworkInformationException (ret);
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List<Win32_IP_ADAPTER_ADDRESSES> l = new List<Win32_IP_ADAPTER_ADDRESSES> ();
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Win32_IP_ADAPTER_ADDRESSES info;
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for (IntPtr p = ptr; p != IntPtr.Zero; p = info.Next) {
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info = Marshal.PtrToStructure<Win32_IP_ADAPTER_ADDRESSES> (p);
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l.Add (info);
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}
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return l.ToArray ();
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}
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public override NetworkInterface [] GetAllNetworkInterfaces ()
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{
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// Win32_IP_ADAPTER_INFO [] ai = GetAdaptersInfo ();
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Win32_IP_ADAPTER_ADDRESSES [] aa = GetAdaptersAddresses ();
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NetworkInterface [] ret = new NetworkInterface [aa.Length];
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for (int i = 0; i < ret.Length; i++)
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ret [i] = new Win32NetworkInterface2 (aa [i]);
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return ret;
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}
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private static int GetBestInterfaceForAddress (IPAddress addr) {
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int index;
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SocketAddress address = new SocketAddress (addr);
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int error = (int) GetBestInterfaceEx (address.m_Buffer, out index);
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if (error != 0) {
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throw new NetworkInformationException (error);
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}
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return index;
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}
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public override int GetLoopbackInterfaceIndex ()
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{
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return GetBestInterfaceForAddress (IPAddress.Loopback);
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}
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public override IPAddress GetNetMask (IPAddress address)
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{
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throw new NotImplementedException ();
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}
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}
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sealed class Win32NetworkInterface2 : NetworkInterface
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{
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[DllImport ("iphlpapi.dll", SetLastError = true)]
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static extern int GetAdaptersInfo (IntPtr info, ref int size);
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[DllImport ("iphlpapi.dll", SetLastError = true)]
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static extern int GetIfEntry (ref Win32_MIB_IFROW row);
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public static Win32_IP_ADAPTER_INFO GetAdapterInfoByIndex (int index)
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{
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foreach (Win32_IP_ADAPTER_INFO info in GetAdaptersInfo ())
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if (info.Index == index)
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return info;
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throw new IndexOutOfRangeException ("No adapter found for index " + index);
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}
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static Win32_IP_ADAPTER_INFO [] GetAdaptersInfo ()
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{
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int len = 0;
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IntPtr ptr = IntPtr.Zero;
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GetAdaptersInfo (ptr, ref len);
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ptr = Marshal.AllocHGlobal(len);
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int ret = GetAdaptersInfo (ptr, ref len);
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if (ret != 0)
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throw new NetworkInformationException (ret);
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List<Win32_IP_ADAPTER_INFO> l = new List<Win32_IP_ADAPTER_INFO> ();
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Win32_IP_ADAPTER_INFO info;
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for (IntPtr p = ptr; p != IntPtr.Zero; p = info.Next) {
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info = Marshal.PtrToStructure<Win32_IP_ADAPTER_INFO> (p);
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l.Add (info);
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}
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return l.ToArray ();
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}
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Win32_IP_ADAPTER_ADDRESSES addr;
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Win32_MIB_IFROW mib4, mib6;
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Win32IPv4InterfaceStatistics ip4stats;
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IPInterfaceProperties ip_if_props;
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internal Win32NetworkInterface2 (Win32_IP_ADAPTER_ADDRESSES addr)
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{
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this.addr = addr;
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mib4 = default (Win32_MIB_IFROW);
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mib4.Index = addr.Alignment.IfIndex;
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if (GetIfEntry (ref mib4) != 0)
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mib4.Index = -1; // unavailable;
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mib6 = default (Win32_MIB_IFROW);
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mib6.Index = addr.Ipv6IfIndex;
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if (GetIfEntry (ref mib6) != 0)
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mib6.Index = -1; // unavailable;
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ip4stats = new Win32IPv4InterfaceStatistics (mib4);
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ip_if_props = new Win32IPInterfaceProperties2 (addr, mib4, mib6);
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}
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public override IPInterfaceProperties GetIPProperties ()
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{
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return ip_if_props;
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}
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public override IPv4InterfaceStatistics GetIPv4Statistics ()
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{
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return ip4stats;
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}
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public override PhysicalAddress GetPhysicalAddress ()
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{
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byte [] bytes = new byte [addr.PhysicalAddressLength];
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Array.Copy (addr.PhysicalAddress, 0, bytes, 0, bytes.Length);
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return new PhysicalAddress (bytes);
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}
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public override bool Supports (NetworkInterfaceComponent networkInterfaceComponent)
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{
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switch (networkInterfaceComponent) {
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case NetworkInterfaceComponent.IPv4:
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return mib4.Index >= 0;
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case NetworkInterfaceComponent.IPv6:
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return mib6.Index >= 0;
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}
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return false;
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}
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public override string Description {
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get { return addr.Description; }
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}
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public override string Id {
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get { return addr.AdapterName; }
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}
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public override bool IsReceiveOnly {
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get { return addr.IsReceiveOnly; }
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}
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public override string Name {
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get { return addr.FriendlyName; }
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}
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public override NetworkInterfaceType NetworkInterfaceType {
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get { return addr.IfType; }
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}
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public override OperationalStatus OperationalStatus {
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get { return addr.OperStatus; }
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}
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public override long Speed {
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get { return mib6.Index >= 0 ? mib6.Speed : mib4.Speed; }
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}
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public override bool SupportsMulticast {
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get { return !addr.NoMulticast; }
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}
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}
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}
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#endif
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