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Android APIs
public final class

Inet6Address

extends InetAddress
java.lang.Object
   ↳ java.net.InetAddress
     ↳ java.net.Inet6Address

Class Overview

An IPv6 address. See InetAddress .

Summary

Public Methods
static Inet6Address getByAddress ( String host, byte[] addr, int scope_id)
Constructs an IPv6 address according to the given host , addr and scope_id .
static Inet6Address getByAddress ( String host, byte[] addr, NetworkInterface nif)
Gets an IPv6 address instance according to the given host , addr and nif .
int getScopeId ()
Returns the scope id if this address is scoped to an interface, 0 otherwise.
NetworkInterface getScopedInterface ()
Returns the network interface if this address is instanced with a scoped network interface, null otherwise.
boolean isAnyLocalAddress ()
Returns whether this is the IPv6 unspecified wildcard address :: or the IPv4 "any" address, 0.0.0.0 .
boolean isIPv4CompatibleAddress ()
Returns whether this IPv6 address is an IPv4-compatible address or not.
boolean isLinkLocalAddress ()
Returns whether this address is a link-local address or not.
boolean isLoopbackAddress ()
Returns whether this address is a loopback address or not.
boolean isMCGlobal ()
Returns whether this address is a global multicast address or not.
boolean isMCLinkLocal ()
Returns whether this address is a link-local multicast address or not.
boolean isMCNodeLocal ()
Returns whether this address is a node-local multicast address or not.
boolean isMCOrgLocal ()
Returns whether this address is a organization-local multicast address or not.
boolean isMCSiteLocal ()
Returns whether this address is a site-local multicast address or not.
boolean isMulticastAddress ()
Returns whether this address is a multicast address or not.
boolean isSiteLocalAddress ()
Returns whether this address is a site-local address or not.
String toString ()
Returns a string containing the host name (if available) and host address.
[Expand]
Inherited Methods
From class java.net.InetAddress
From class java.lang.Object

Public Methods

public static Inet6Address getByAddress ( String host, byte[] addr, int scope_id)

Added in API level 1

Constructs an IPv6 address according to the given host , addr and scope_id .

Parameters
host the host name associated with the address.
addr the network address.
scope_id the scope id for link- or site-local addresses.
Returns
  • the Inet6Address instance representing the IP address.
Throws
UnknownHostException if the address is null or has an invalid length.

public static Inet6Address getByAddress ( String host, byte[] addr, NetworkInterface nif)

Added in API level 1

Gets an IPv6 address instance according to the given host , addr and nif . scope_id is set according to the given nif and the addr type (for example site-local or link-local).

Parameters
host the hostname associated with the address.
addr the network address.
nif the network interface that this address is associated with.
Returns
  • the Inet6Address instance representing the IP address.
Throws
UnknownHostException if the address is null or has an invalid length or the interface doesn't have a numeric scope id for the given address type.

public int getScopeId ()

Added in API level 1

Returns the scope id if this address is scoped to an interface, 0 otherwise.

public NetworkInterface getScopedInterface ()

Added in API level 1

Returns the network interface if this address is instanced with a scoped network interface, null otherwise.

public boolean isAnyLocalAddress ()

Added in API level 1

Returns whether this is the IPv6 unspecified wildcard address :: or the IPv4 "any" address, 0.0.0.0 .

public boolean isIPv4CompatibleAddress ()

Added in API level 1

Returns whether this IPv6 address is an IPv4-compatible address or not. An IPv4-compatible address has the prefix ::/96 and is a deprecated and no-longer used equivalent of the modern IPv4-mapped IPv6 addresses.

public boolean isLinkLocalAddress ()

Added in API level 1

Returns whether this address is a link-local address or not.

Valid IPv6 link-local addresses have the prefix fe80::/10 .

RFC 3484 "Default Address Selection for Internet Protocol Version 6 (IPv6)" states that both IPv4 auto-configuration addresses (prefix 169.254/16 ) and IPv4 loopback addresses (prefix 127/8 ) have link-local scope, but Inet4Address only considers the auto-configuration addresses to have link-local scope. That is: the IPv4 loopback address returns false.

public boolean isLoopbackAddress ()

Added in API level 1

Returns whether this address is a loopback address or not.

Valid IPv4 loopback addresses have the prefix 127/8 .

The only valid IPv6 loopback address is ::1 .

public boolean isMCGlobal ()

Added in API level 1

Returns whether this address is a global multicast address or not.

Valid IPv6 global multicast addresses have the prefix ffxe::/16 , where x is a set of flags and the additional 112 bits make up the global multicast address space.

Valid IPv4 global multicast addresses are the range of addresses from 224.0.1.0 to 238.255.255.255 .

public boolean isMCLinkLocal ()

Added in API level 1

Returns whether this address is a link-local multicast address or not.

Valid IPv6 link-local multicast addresses have the prefix ffx2::/16 , where x is a set of flags and the additional 112 bits make up the link-local multicast address space.

Valid IPv4 link-local multicast addresses have the prefix 224.0.0/24 .

public boolean isMCNodeLocal ()

Added in API level 1

Returns whether this address is a node-local multicast address or not.

Valid IPv6 node-local multicast addresses have the prefix ffx1::/16 , where x is a set of flags and the additional 112 bits make up the link-local multicast address space.

There are no valid IPv4 node-local multicast addresses.

public boolean isMCOrgLocal ()

Added in API level 1

Returns whether this address is a organization-local multicast address or not.

Valid IPv6 organization-local multicast addresses have the prefix ffx8::/16 , where x is a set of flags and the additional 112 bits make up the link-local multicast address space.

Valid IPv4 organization-local multicast addresses have the prefix 239.192/14 .

public boolean isMCSiteLocal ()

Added in API level 1

Returns whether this address is a site-local multicast address or not.

Valid IPv6 site-local multicast addresses have the prefix ffx5::/16 , where x is a set of flags and the additional 112 bits make up the link-local multicast address space.

Valid IPv4 site-local multicast addresses have the prefix 239.255/16 .

public boolean isMulticastAddress ()

Added in API level 1

Returns whether this address is a multicast address or not.

Valid IPv6 multicast addresses have the prefix ff::/8 .

Valid IPv4 multicast addresses have the prefix 224/4 .

public boolean isSiteLocalAddress ()

Added in API level 1

Returns whether this address is a site-local address or not.

For the purposes of this method, valid IPv6 site-local addresses have the deprecated prefix fec0::/10 from RFC 1884 , not the modern prefix fc00::/7 from RFC 4193 .

RFC 3484 "Default Address Selection for Internet Protocol Version 6 (IPv6)" states that IPv4 private addresses have the prefix 10/8 , 172.16/12 , or 192.168/16 .

Returns
  • true if this instance represents a site-local address, false otherwise.

public String toString ()

Added in API level 1

Returns a string containing the host name (if available) and host address. For example: "www.google.com/74.125.224.115" or "/127.0.0.1" .

IPv6 addresses may additionally include an interface name or scope id. For example: "www.google.com/2001:4860:4001:803::1013%eth0" or "/2001:4860:4001:803::1013%2" .

Returns
  • a printable representation of this object.