2 // System.Net.Sockets.MulticastOption.cs
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34 namespace System.Net.Sockets
38 // Encapsulates a multicast option
40 public class IPv6MulticastOption
42 // Don't change the names of these fields without also
43 // changing socket-io.c in the runtime
44 private IPAddress group;
47 public IPv6MulticastOption (IPAddress group)
52 public IPv6MulticastOption (IPAddress group, long ifindex)
55 throw new ArgumentNullException ("group");
56 if (ifindex < 0 || ifindex > 0xffffffff)
57 throw new ArgumentOutOfRangeException ("ifindex");
60 this.ifIndex = ifindex;
63 public IPAddress Group
68 throw new ArgumentNullException ("value");
73 public long InterfaceIndex
75 get { return ifIndex; }
77 if (value < 0 || value > 0xffffffff)
78 throw new ArgumentOutOfRangeException ("value");