using System;

namespace System.Net.Sockets
{
	/// <summary>Contains <see cref="T:System.Net.IPAddress" /> values used to join and drop multicast groups.</summary>
	// Token: 0x020001DD RID: 477
	public class MulticastOption
	{
		/// <summary>Initializes a new version of the <see cref="T:System.Net.Sockets.MulticastOption" /> class for the specified IP multicast group.</summary>
		/// <param name="group">The <see cref="T:System.Net.IPAddress" /> of the multicast group. </param>
		/// <exception cref="T:System.ArgumentNullException">
		///   <paramref name="group" /> is null. </exception>
		// Token: 0x06000F65 RID: 3941 RVA: 0x0002A400 File Offset: 0x00028600
		public MulticastOption(IPAddress group)
			: this(group, IPAddress.Any)
		{
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Net.Sockets.MulticastOption" /> class with the specified IP multicast group address and interface index.</summary>
		/// <param name="group">The <see cref="T:System.Net.IPAddress" /> of the multicast group.</param>
		/// <param name="interfaceIndex">The index of the interface that is used to send and receive multicast packets.</param>
		// Token: 0x06000F66 RID: 3942 RVA: 0x0002A410 File Offset: 0x00028610
		public MulticastOption(IPAddress group, int interfaceIndex)
		{
			if (group == null)
			{
				throw new ArgumentNullException("group");
			}
			if (interfaceIndex < 0 || interfaceIndex > 16777215)
			{
				throw new ArgumentOutOfRangeException("interfaceIndex");
			}
			this.group = group;
			this.iface_index = interfaceIndex;
		}

		/// <summary>Initializes a new instance of the <see cref="T:System.Net.Sockets.MulticastOption" /> class with the specified IP multicast group address and local IP address associated with a network interface.</summary>
		/// <param name="group">The group <see cref="T:System.Net.IPAddress" />. </param>
		/// <param name="mcint">The local <see cref="T:System.Net.IPAddress" />. </param>
		/// <exception cref="T:System.ArgumentNullException">
		///   <paramref name="group" /> is null.-or- <paramref name="mcint" /> is null. </exception>
		// Token: 0x06000F67 RID: 3943 RVA: 0x0002A460 File Offset: 0x00028660
		public MulticastOption(IPAddress group, IPAddress mcint)
		{
			if (group == null)
			{
				throw new ArgumentNullException("group");
			}
			if (mcint == null)
			{
				throw new ArgumentNullException("mcint");
			}
			this.group = group;
			this.local = mcint;
		}

		/// <summary>Gets or sets the IP address of a multicast group.</summary>
		/// <returns>An <see cref="T:System.Net.IPAddress" /> that contains the Internet address of a multicast group.</returns>
		// Token: 0x17000544 RID: 1348
		// (get) Token: 0x06000F68 RID: 3944 RVA: 0x0002A4A4 File Offset: 0x000286A4
		// (set) Token: 0x06000F69 RID: 3945 RVA: 0x0002A4AC File Offset: 0x000286AC
		public IPAddress Group
		{
			get
			{
				return this.group;
			}
			set
			{
				this.group = value;
			}
		}

		/// <summary>Gets or sets the local address associated with a multicast group.</summary>
		/// <returns>An <see cref="T:System.Net.IPAddress" /> that contains the local address associated with a multicast group.</returns>
		// Token: 0x17000545 RID: 1349
		// (get) Token: 0x06000F6A RID: 3946 RVA: 0x0002A4B8 File Offset: 0x000286B8
		// (set) Token: 0x06000F6B RID: 3947 RVA: 0x0002A4C0 File Offset: 0x000286C0
		public IPAddress LocalAddress
		{
			get
			{
				return this.local;
			}
			set
			{
				this.local = value;
				this.iface_index = 0;
			}
		}

		/// <summary>Gets or sets the index of the interface that is used to send and receive multicast packets. </summary>
		/// <returns>An integer that represents the index of a <see cref="T:System.Net.NetworkInformation.NetworkInterface" /> array element.</returns>
		// Token: 0x17000546 RID: 1350
		// (get) Token: 0x06000F6C RID: 3948 RVA: 0x0002A4D0 File Offset: 0x000286D0
		// (set) Token: 0x06000F6D RID: 3949 RVA: 0x0002A4D8 File Offset: 0x000286D8
		public int InterfaceIndex
		{
			get
			{
				return this.iface_index;
			}
			set
			{
				if (value < 0 || value > 16777215)
				{
					throw new ArgumentOutOfRangeException("value");
				}
				this.iface_index = value;
				this.local = null;
			}
		}

		// Token: 0x04000DFA RID: 3578
		private IPAddress group;

		// Token: 0x04000DFB RID: 3579
		private IPAddress local;

		// Token: 0x04000DFC RID: 3580
		private int iface_index;
	}
}