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# IPv6Address

A structure containing an IPv6 address.

```
struct IPv6Address
```

## Topics

### Creating Addresses

[`init(_:)`](/documentation/Network/IPv6Address/init(_:))

Initializes an IPv6 address with a string.

[`init(_:_:)`](/documentation/Network/IPv6Address/init(_:_:))

Initializes an IPv6 address with data.

[`asIPv4`](/documentation/Network/IPv6Address/asIPv4)

Extracts the IPv4 address contained within the IPv6 address, if the IPv6 address is an IPv4-mapped or IPv4-compatible address.

### Inspecting Address Properties

[`rawValue`](/documentation/Network/IPv6Address/rawValue)

The raw data of an IPv6 address.

[`interface`](/documentation/Network/IPv6Address/interface)

The IPv6 scoped interface associated with this address.

[`multicastScope`](/documentation/Network/IPv6Address/multicastScope)

The IPv6 multicast scope of the address.

[`IPv6Address.Scope`](/documentation/Network/IPv6Address/Scope)

An IPv6 multicast scope.

[`isAny`](/documentation/Network/IPv6Address/isAny)

A Boolean indicating whether the address is the unspecified address (::).

[`is6to4`](/documentation/Network/IPv6Address/is6to4)

A Boolean indicating whether the address is a 6to4 address.

[`isIPv4Compatabile`](/documentation/Network/IPv6Address/isIPv4Compatabile)

A Boolean indicating whether the address is IPv4-compatible.

[`isIPv4Mapped`](/documentation/Network/IPv6Address/isIPv4Mapped)

A Boolean indicating whether the address is an IPv4-mapped address.

[`isLinkLocal`](/documentation/Network/IPv6Address/isLinkLocal)

A Boolean indicating whether this address is in a link-local range.

[`isLoopback`](/documentation/Network/IPv6Address/isLoopback)

A Boolean indicating whether this address is a loopback address for the local device.

[`isMulticast`](/documentation/Network/IPv6Address/isMulticast)

A Boolean indicating whether this address is a multicast address.

### Setting Well-Known Addresses

[`any`](/documentation/Network/IPv6Address/any)

The unspecified address (::).

[`broadcast`](/documentation/Network/IPv6Address/broadcast)

The unspecified broadcast address (::).

[`loopback`](/documentation/Network/IPv6Address/loopback)

The device’s loopback address (::1).

[`nodeLocalNodes`](/documentation/Network/IPv6Address/nodeLocalNodes)

The multicast address for all local nodes (ff01::1).

[`linkLocalNodes`](/documentation/Network/IPv6Address/linkLocalNodes)

The multicast address for all link-local nodes (ff02::1).

[`linkLocalRouters`](/documentation/Network/IPv6Address/linkLocalRouters)

The multicast address for all link-local routers (ff02::2).

### Comparing Addresses


---

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