| Package | Description | 
|---|---|
| java.net | 
 Provides the classes for implementing networking applications. 
 | 
| java.nio.channels | 
 Defines channels, which represent connections to entities that are capable of
 performing I/O operations, such as files and sockets; defines selectors, for
 multiplexed, non-blocking I/O operations. 
 | 
| Modifier and Type | Field and Description | 
|---|---|
static SocketOption<NetworkInterface> | 
StandardSocketOptions.IP_MULTICAST_IF
The network interface for Internet Protocol (IP) multicast datagrams. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static NetworkInterface | 
NetworkInterface.getByIndex(int index)
Get a network interface given its index. 
 | 
static NetworkInterface | 
NetworkInterface.getByInetAddress(InetAddress addr)
Convenience method to search for a network interface that
 has the specified Internet Protocol (IP) address bound to
 it. 
 | 
static NetworkInterface | 
NetworkInterface.getByName(String name)
Searches for the network interface with the specified name. 
 | 
NetworkInterface | 
MulticastSocket.getNetworkInterface()
Get the multicast network interface set. 
 | 
NetworkInterface | 
NetworkInterface.getParent()
Returns the parent NetworkInterface of this interface if this is
 a subinterface, or  
null if it is a physical
 (non virtual) interface or has no parent. | 
NetworkInterface | 
Inet6Address.getScopedInterface()
Returns the scoped interface, if this instance was created with
 with a scoped interface. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static Enumeration<NetworkInterface> | 
NetworkInterface.getNetworkInterfaces()
Returns all the interfaces on this machine. 
 | 
Enumeration<NetworkInterface> | 
NetworkInterface.getSubInterfaces()
Get an Enumeration with all the subinterfaces (also known as virtual
 interfaces) attached to this network interface. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static Inet6Address | 
Inet6Address.getByAddress(String host,
            byte[] addr,
            NetworkInterface nif)
Create an Inet6Address in the exact manner of  
InetAddress.getByAddress(String,byte[]) except that the IPv6 scope_id is
 set to the value corresponding to the given interface for the address
 type specified in addr. | 
boolean | 
InetAddress.isReachable(NetworkInterface netif,
           int ttl,
           int timeout)
Test whether that address is reachable. 
 | 
void | 
MulticastSocket.joinGroup(SocketAddress mcastaddr,
         NetworkInterface netIf)
Joins the specified multicast group at the specified interface. 
 | 
protected abstract void | 
DatagramSocketImpl.joinGroup(SocketAddress mcastaddr,
         NetworkInterface netIf)
Join the multicast group. 
 | 
void | 
MulticastSocket.leaveGroup(SocketAddress mcastaddr,
          NetworkInterface netIf)
Leave a multicast group on a specified local interface. 
 | 
protected abstract void | 
DatagramSocketImpl.leaveGroup(SocketAddress mcastaddr,
          NetworkInterface netIf)
Leave the multicast group. 
 | 
void | 
MulticastSocket.setNetworkInterface(NetworkInterface netIf)
Specify the network interface for outgoing multicast datagrams
 sent on this socket. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
abstract NetworkInterface | 
MembershipKey.networkInterface()
Returns the network interface for which this membership key was created. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
MembershipKey | 
MulticastChannel.join(InetAddress group,
    NetworkInterface interf)
Joins a multicast group to begin receiving all datagrams sent to the group,
 returning a membership key. 
 | 
MembershipKey | 
MulticastChannel.join(InetAddress group,
    NetworkInterface interf,
    InetAddress source)
Joins a multicast group to begin receiving datagrams sent to the group
 from a given source address. 
 | 
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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