Enum Ipv6Scope 

pub enum Ipv6Scope {
    InterfaceLocal,
    LinkLocal,
    RealmLocal,
    AdminLocal,
    SiteLocal,
    OrganizationLocal,
    Global,
    Reserved(Ipv6ReservedScope),
    Unassigned(Ipv6UnassignedScope),
}

The list of IPv6 scopes.

These scopes are defined by RFC 4291 Section 2.7 and updated by RFC 7346.

Variants

InterfaceLocal

The interface-local scope.

LinkLocal

The link-local scope.

RealmLocal

The realm-local scope.

AdminLocal

The admin-local scope.

SiteLocal

The (deprecated) site-local scope.

The site-local scope was deprecated in RFC 3879. While this scope is returned for both site-local unicast and site-local multicast addresses, RFC 3879 says the following about site-local unicast addresses in particular (“this prefix” refers to the site-local unicast subnet):

The special behavior of this prefix MUST no longer be supported in new implementations. The prefix MUST NOT be reassigned for other use except by a future IETF standards action… However, router implementations SHOULD be configured to prevent routing of this prefix by default.

OrganizationLocal

The organization-local scope.

Global

The global scope.

Reserved(Ipv6ReservedScope)

Scopes which are reserved for future use by [RFC 7436].

Unassigned(Ipv6UnassignedScope)

Scopes which are available for local definition by administrators.

Implementations

impl Ipv6Scope

pub const MULTICAST_SCOPE_ID_INTERFACE_LOCAL: u8 = 1

The multicast scope ID of an interface-local address, defined in RFC 7346.

pub const MULTICAST_SCOPE_ID_LINK_LOCAL: u8 = 2

The multicast scope ID of a link-local address, defined in RFC 7346.

pub const MULTICAST_SCOPE_ID_REALM_LOCAL: u8 = 3

The multicast scope ID of a realm-local address, defined in RFC 7346.

pub const MULTICAST_SCOPE_ID_ADMIN_LOCAL: u8 = 4

The multicast scope ID of an admin-local address, defined in RFC 7346.

pub const MULTICAST_SCOPE_ID_SITE_LOCAL: u8 = 5

The multicast scope ID of a (deprecated) site-local address, defined in RFC 7346.

Note that site-local addresses are deprecated.

pub const MULTICAST_SCOPE_ID_ORG_LOCAL: u8 = 8

The multicast scope ID of an organization-local address, defined in RFC 7346.

pub const MULTICAST_SCOPE_ID_GLOBAL: u8 = 0xE

The multicast scope ID of global address, defined in RFC 7346.

pub fn multicast_scope_id(&self) -> u8

The ID used to indicate this scope in a multicast IPv6 address.

Per RFC 4291 Section 2.7, the bits of a multicast IPv6 address are laid out as follows:

|   8    |  4 |  4 |                  112 bits                   |
+------ -+----+----+---------------------------------------------+
|11111111|flgs|scop|                  group ID                   |
+--------+----+----+---------------------------------------------+

The 4-bit scop field encodes the scope of the address. multicast_scope_id returns the numerical value used to encode this scope in the scop field of a multicast address.

Trait Implementations

impl Clone for Ipv6Scope

fn clone(&self) -> Ipv6Scope

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Ipv6Scope

impl Debug for Ipv6Scope

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Ipv6Scope

impl PartialEq for Ipv6Scope

fn eq(&self, other: &Ipv6Scope) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Scope for Ipv6Scope

fn can_have_zone(&self) -> bool

Can addresses in this scope have an associated zone?

impl StructuralPartialEq for Ipv6Scope