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INET-ADDRESS-MIB.txt
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
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