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INET-ADDRESS-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, mib-2, Unsigned32 FROM SNMPv2-SMI
TEXTUAL-CONVENTION FROM SNMPv2-TC;
inetAddressMIB MODULE-IDENTITY
LAST-UPDATED "200502040000Z"
ORGANIZATION
"IETF Operations and Management Area"
CONTACT-INFO
"Juergen Schoenwaelder (Editor)
International University Bremen
P.O. Box 750 561
28725 Bremen, Germany
Phone: +49 421 200-3587
EMail: j.schoenwaelder@iu-bremen.de
Send comments to <ietfmibs@ops.ietf.org>."
DESCRIPTION
"This MIB module defines textual conventions for
representing Internet addresses. An Internet
address can be an IPv4 address, an IPv6 address,
or a DNS domain name. This module also defines
textual conventions for Internet port numbers,
autonomous system numbers, and the length of an
Internet address prefix.
Copyright (C) The Internet Society (2005). This version
of this MIB module is part of RFC 4001, see the RFC
itself for full legal notices."
REVISION "200502040000Z"
DESCRIPTION
"Third version, published as RFC 4001. This revision
introduces the InetZoneIndex, InetScopeType, and
InetVersion textual conventions."
REVISION "200205090000Z"
DESCRIPTION
"Second version, published as RFC 3291. This
revision contains several clarifications and
introduces several new textual conventions:
InetAddressPrefixLength, InetPortNumber,
InetAutonomousSystemNumber, InetAddressIPv4z,
and InetAddressIPv6z."
REVISION "200006080000Z"
DESCRIPTION
"Initial version, published as RFC 2851."
::= { mib-2 76 }
InetAddressType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value that represents a type of Internet address.
unknown(0) An unknown address type. This value MUST
be used if the value of the corresponding
InetAddress object is a zero-length string.
It may also be used to indicate an IP address
that is not in one of the formats defined
below.
ipv4(1) An IPv4 address as defined by the
InetAddressIPv4 textual convention.
ipv6(2) An IPv6 address as defined by the
InetAddressIPv6 textual convention.
ipv4z(3) A non-global IPv4 address including a zone
index as defined by the InetAddressIPv4z
textual convention.
ipv6z(4) A non-global IPv6 address including a zone
index as defined by the InetAddressIPv6z
textual convention.
dns(16) A DNS domain name as defined by the
InetAddressDNS textual convention.
Each definition of a concrete InetAddressType value must be
accompanied by a definition of a textual convention for use
with that InetAddressType.
To support future extensions, the InetAddressType textual
convention SHOULD NOT be sub-typed in object type definitions.
It MAY be sub-typed in compliance statements in order to
require only a subset of these address types for a compliant
implementation.
Implementations must ensure that InetAddressType objects
and any dependent objects (e.g., InetAddress objects) are
consistent. An inconsistentValue error must be generated
if an attempt to change an InetAddressType object would,
for example, lead to an undefined InetAddress value. In
particular, InetAddressType/InetAddress pairs must be
changed together if the address type changes (e.g., from
ipv6(2) to ipv4(1))."
SYNTAX INTEGER {
unknown(0),
ipv4(1),
ipv6(2),
ipv4z(3),
ipv6z(4),
dns(16)
}
InetAddress ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Denotes a generic Internet address.
An InetAddress value is always interpreted within the context
of an InetAddressType value. Every usage of the InetAddress
textual convention is required to specify the InetAddressType
object that provides the context. It is suggested that the
InetAddressType object be logically registered before the
object(s) that use the InetAddress textual convention, if
they appear in the same logical row.
The value of an InetAddress object must always be
consistent with the value of the associated InetAddressType
object. Attempts to set an InetAddress object to a value
inconsistent with the associated InetAddressType
must fail with an inconsistentValue error.
When this textual convention is used as the syntax of an
index object, there may be issues with the limit of 128
sub-identifiers specified in SMIv2, STD 58. In this case,
the object definition MUST include a 'SIZE' clause to
limit the number of potential instance sub-identifiers;
otherwise the applicable constraints MUST be stated in
the appropriate conceptual row DESCRIPTION clauses, or
in the surrounding documentation if there is no single
DESCRIPTION clause that is appropriate."
SYNTAX OCTET STRING (SIZE (0..255))
InetAddressIPv4 ::= TEXTUAL-CONVENTION
DISPLAY-HINT "1d.1d.1d.1d"
STATUS current
DESCRIPTION
"Represents an IPv4 network address:
Octets Contents Encoding
1-4 IPv4 address network-byte order
The corresponding InetAddressType value is ipv4(1).
This textual convention SHOULD NOT be used directly in object
definitions, as it restricts addresses to a specific format.
However, if it is used, it MAY be used either on its own or in
conjunction with InetAddressType, as a pair."
SYNTAX OCTET STRING (SIZE (4))
InetAddressIPv6 ::= TEXTUAL-CONVENTION
DISPLAY-HINT "2x:2x:2x:2x:2x:2x:2x:2x"
STATUS current
DESCRIPTION
"Represents an IPv6 network address:
Octets Contents Encoding
1-16 IPv6 address network-byte order
The corresponding InetAddressType value is ipv6(2).
This textual convention SHOULD NOT be used directly in object
definitions, as it restricts addresses to a specific format.
However, if it is used, it MAY be used either on its own or in
conjunction with InetAddressType, as a pair."
SYNTAX OCTET STRING (SIZE (16))
InetAddressIPv4z ::= TEXTUAL-CONVENTION
DISPLAY-HINT "1d.1d.1d.1d%4d"
STATUS current
DESCRIPTION
"Represents a non-global IPv4 network address, together
with its zone index:
Octets Contents Encoding
1-4 IPv4 address network-byte order
5-8 zone index network-byte order
The corresponding InetAddressType value is ipv4z(3).
The zone index (bytes 5-8) is used to disambiguate identical
address values on nodes that have interfaces attached to
different zones of the same scope. The zone index may contain
the special value 0, which refers to the default zone for each
scope.
This textual convention SHOULD NOT be used directly in object
definitions, as it restricts addresses to a specific format.
However, if it is used, it MAY be used either on its own or in
conjunction with InetAddressType, as a pair."
SYNTAX OCTET STRING (SIZE (8))
InetAddressIPv6z ::= TEXTUAL-CONVENTION
DISPLAY-HINT "2x:2x:2x:2x:2x:2x:2x:2x%4d"
STATUS current
DESCRIPTION
"Represents a non-global IPv6 network address, together
with its zone index:
Octets Contents Encoding
1-16 IPv6 address network-byte order
17-20 zone index network-byte order
The corresponding InetAddressType value is ipv6z(4).
The zone index (bytes 17-20) is used to disambiguate
identical address values on nodes that have interfaces
attached to different zones of the same scope. The zone index
may contain the special value 0, which refers to the default
zone for each scope.
This textual convention SHOULD NOT be used directly in object
definitions, as it restricts addresses to a specific format.
However, if it is used, it MAY be used either on its own or in
conjunction with InetAddressType, as a pair."
SYNTAX OCTET STRING (SIZE (20))
InetAddressDNS ::= TEXTUAL-CONVENTION
DISPLAY-HINT "255a"
STATUS current
DESCRIPTION
"Represents a DNS domain name. The name SHOULD be fully
qualified whenever possible.
The corresponding InetAddressType is dns(16).
The DESCRIPTION clause of InetAddress objects that may have
InetAddressDNS values MUST fully describe how (and when)
these names are to be resolved to IP addresses.
The resolution of an InetAddressDNS value may require to
query multiple DNS records (e.g., A for IPv4 and AAAA for
IPv6). The order of the resolution process and which DNS
record takes precedence depends on the configuration of the
resolver.
This textual convention SHOULD NOT be used directly in object
definitions, as it restricts addresses to a specific format.
However, if it is used, it MAY be used either on its own or in
conjunction with InetAddressType, as a pair."
SYNTAX OCTET STRING (SIZE (1..255))
InetAddressPrefixLength ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Denotes the length of a generic Internet network address
prefix. A value of n corresponds to an IP address mask
that has n contiguous 1-bits from the most significant
bit (MSB), with all other bits set to 0.
An InetAddressPrefixLength value is always interpreted within
the context of an InetAddressType value. Every usage of the
InetAddressPrefixLength textual convention is required to
specify the InetAddressType object that provides the
context. It is suggested that the InetAddressType object be
logically registered before the object(s) that use the
InetAddressPrefixLength textual convention, if they appear
in the same logical row.
InetAddressPrefixLength values larger than
the maximum length of an IP address for a specific
InetAddressType are treated as the maximum significant
value applicable for the InetAddressType. The maximum
significant value is 32 for the InetAddressType
'ipv4(1)' and 'ipv4z(3)' and 128 for the InetAddressType
'ipv6(2)' and 'ipv6z(4)'. The maximum significant value
for the InetAddressType 'dns(16)' is 0.
The value zero is object-specific and must be defined as
part of the description of any object that uses this
syntax. Examples of the usage of zero might include
situations where the Internet network address prefix
is unknown or does not apply.
The upper bound of the prefix length has been chosen to
be consistent with the maximum size of an InetAddress."
SYNTAX Unsigned32 (0..2040)
InetPortNumber ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Represents a 16 bit port number of an Internet transport
layer protocol. Port numbers are assigned by IANA. A
current list of all assignments is available from
<http://www.iana.org/>.
The value zero is object-specific and must be defined as
part of the description of any object that uses this
syntax. Examples of the usage of zero might include
situations where a port number is unknown, or when the
value zero is used as a wildcard in a filter."
REFERENCE "STD 6 (RFC 768), STD 7 (RFC 793) and RFC 2960"
SYNTAX Unsigned32 (0..65535)
InetAutonomousSystemNumber ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"Represents an autonomous system number that identifies an
Autonomous System (AS). An AS is a set of routers under a
single technical administration, using an interior gateway
protocol and common metrics to route packets within the AS,
and using an exterior gateway protocol to route packets to
other ASes'. IANA maintains the AS number space and has
delegated large parts to the regional registries.
Autonomous system numbers are currently limited to 16 bits
(0..65535). There is, however, work in progress to enlarge the
autonomous system number space to 32 bits. Therefore, this
textual convention uses an Unsigned32 value without a
range restriction in order to support a larger autonomous
system number space."
REFERENCE "RFC 1771, RFC 1930"
SYNTAX Unsigned32
InetScopeType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Represents a scope type. This textual convention can be used
in cases where a MIB has to represent different scope types
and there is no context information, such as an InetAddress
object, that implicitly defines the scope type.
Note that not all possible values have been assigned yet, but
they may be assigned in future revisions of this specification.
Applications should therefore be able to deal with values
not yet assigned."
REFERENCE "RFC 3513"
SYNTAX INTEGER {
-- reserved(0),
interfaceLocal(1),
linkLocal(2),
subnetLocal(3),
adminLocal(4),
siteLocal(5), -- site-local unicast addresses
-- have been deprecated by RFC 3879
-- unassigned(6),
-- unassigned(7),
organizationLocal(8),
-- unassigned(9),
-- unassigned(10),
-- unassigned(11),
-- unassigned(12),
-- unassigned(13),
global(14)
-- reserved(15)
}
InetZoneIndex ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"A zone index identifies an instance of a zone of a
specific scope.
The zone index MUST disambiguate identical address
values. For link-local addresses, the zone index will
typically be the interface index (ifIndex as defined in the
IF-MIB) of the interface on which the address is configured.
The zone index may contain the special value 0, which refers
to the default zone. The default zone may be used in cases
where the valid zone index is not known (e.g., when a
management application has to write a link-local IPv6
address without knowing the interface index value). The
default zone SHOULD NOT be used as an easy way out in
cases where the zone index for a non-global IPv6 address
is known."
REFERENCE "RFC4007"
SYNTAX Unsigned32
InetVersion ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A value representing a version of the IP protocol.
unknown(0) An unknown or unspecified version of the IP
protocol.
ipv4(1) The IPv4 protocol as defined in RFC 791 (STD 5).
ipv6(2) The IPv6 protocol as defined in RFC 2460.
Note that this textual convention SHOULD NOT be used to
distinguish different address types associated with IP
protocols. The InetAddressType has been designed for this
purpose."
REFERENCE "RFC 791, RFC 2460"
SYNTAX INTEGER {
unknown(0),
ipv4(1),
ipv6(2)
}
END