SCALAR OBJECTS

Name	Type	Access	OID	Description
1 udpInDatagrams	COUNTER	ReadOnly	.1.3.6.1.2.1.7.1	The total number of UDP datagrams delivered to UDP users. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
2 udpNoPorts	COUNTER	ReadOnly	.1.3.6.1.2.1.7.2	The total number of received UDP datagrams for which there was no application at the destination port. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
3 udpInErrors	COUNTER	ReadOnly	.1.3.6.1.2.1.7.3	The number of received UDP datagrams that could not be delivered for reasons other than the lack of an application at the destination port. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
4 udpOutDatagrams	COUNTER	ReadOnly	.1.3.6.1.2.1.7.4	The total number of UDP datagrams sent from this entity. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
8 udpHCInDatagrams	COUNTER64	ReadOnly	.1.3.6.1.2.1.7.8	The total number of UDP datagrams delivered to UDP users, for devices that can receive more than 1 million UDP datagrams per second. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
9 udpHCOutDatagrams	COUNTER64	ReadOnly	.1.3.6.1.2.1.7.9	The total number of UDP datagrams sent from this entity, for devices that can transmit more than 1 million UDP datagrams per second. Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.

TABLE OBJECTS

Table udpEndpointTable

Table Name	udpEndpointTable
In MIB	UDP-MIB
Registered at OID	.1.3.6.1.2.1.7.7
Table Description	A table containing information about this entity's UDP endpoints on which a local application is currently accepting or sending datagrams. The address type in this table represents the address type used for the communication, irrespective of the higher-layer abstraction. For example, an application using IPv6 'sockets' to communicate via IPv4 between ::ffff:10.0.0.1 and ::ffff:10.0.0.2 would use InetAddressType ipv4(1). Unlike the udpTable in RFC 2013, this table also allows the representation of an application that completely specifies both local and remote addresses and ports. A listening application is represented in three possible ways: 1) An application that is willing to accept both IPv4 and IPv6 datagrams is represented by a udpEndpointLocalAddressType of unknown(0) and a udpEndpointLocalAddress of ''h (a zero-length octet-string). 2) An application that is willing to accept only IPv4 or only IPv6 datagrams is represented by a udpEndpointLocalAddressType of the appropriate address type and a udpEndpointLocalAddress of '0.0.0.0' or '::' respectively. 3) An application that is listening for datagrams only for a specific IP address but from any remote system is represented by a udpEndpointLocalAddressType of the appropriate address type, with udpEndpointLocalAddress specifying the local address. In all cases where the remote is a wildcard, the udpEndpointRemoteAddressType is unknown(0), the udpEndpointRemoteAddress is ''h (a zero-length octet-string), and the udpEndpointRemotePort is 0. If the operating system is demultiplexing UDP packets by remote address and port, or if the application has 'connected' the socket specifying a default remote address and port, the udpEndpointRemote* values should be used to reflect this.
Row Description	Information about a particular current UDP endpoint. Implementers need to be aware that if the total number of elements (octets or sub-identifiers) in udpEndpointLocalAddress and udpEndpointRemoteAddress exceeds 111, then OIDs of column instances in this table will have more than 128 sub-identifiers and cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.

udpEndpointTable Indexes:

Name	Type	Access	Description
1 udpEndpointLocalAddressType	INTEGER InetAddressType (ENUM list below)	NoAccess	Note: this object is based on the InetAddressType TEXTUAL-CONVENTION. The address type of udpEndpointLocalAddress. Only IPv4, IPv4z, IPv6, and IPv6z addresses are expected, or unknown(0) if datagrams for all local IP addresses are accepted.
2 udpEndpointLocalAddress	OCTETSTR Legal Lengths: 0 .. 255 InetAddress	NoAccess	Note: this object is based on the InetAddress TEXTUAL-CONVENTION. The local IP address for this UDP endpoint. The value of this object can be represented in three possible ways, depending on the characteristics of the listening application: 1. For an application that is willing to accept both IPv4 and IPv6 datagrams, the value of this object must be ''h (a zero-length octet-string), with the value of the corresponding instance of the udpEndpointLocalAddressType object being unknown(0). 2. For an application that is willing to accept only IPv4 or only IPv6 datagrams, the value of this object must be '0.0.0.0' or '::', respectively, while the corresponding instance of the udpEndpointLocalAddressType object represents the appropriate address type. 3. For an application that is listening for data destined only to a specific IP address, the value of this object is the specific IP address for which this node is receiving packets, with the corresponding instance of the udpEndpointLocalAddressType object representing the appropriate address type. As this object is used in the index for the udpEndpointTable, implementors of this table should be careful not to create entries that would result in OIDs with more than 128 subidentifiers; else the information cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
3 udpEndpointLocalPort	UNSIGNED32 Legal values: 0 .. 65535 InetPortNumber	NoAccess	Note: this object is based on the InetPortNumber TEXTUAL-CONVENTION. The local port number for this UDP endpoint.
4 udpEndpointRemoteAddressType	INTEGER InetAddressType (ENUM list below)	NoAccess	Note: this object is based on the InetAddressType TEXTUAL-CONVENTION. The address type of udpEndpointRemoteAddress. Only IPv4, IPv4z, IPv6, and IPv6z addresses are expected, or unknown(0) if datagrams for all remote IP addresses are accepted. Also, note that some combinations of udpEndpointLocalAdressType and udpEndpointRemoteAddressType are not supported. In particular, if the value of this object is not unknown(0), it is expected to always refer to the same IP version as udpEndpointLocalAddressType.
5 udpEndpointRemoteAddress	OCTETSTR Legal Lengths: 0 .. 255 InetAddress	NoAccess	Note: this object is based on the InetAddress TEXTUAL-CONVENTION. The remote IP address for this UDP endpoint. If datagrams from any remote system are to be accepted, this value is ''h (a zero-length octet-string). Otherwise, it has the type described by udpEndpointRemoteAddressType and is the address of the remote system from which datagrams are to be accepted (or to which all datagrams will be sent). As this object is used in the index for the udpEndpointTable, implementors of this table should be careful not to create entries that would result in OIDs with more than 128 subidentifiers; else the information cannot be accessed using SNMPv1, SNMPv2c, or SNMPv3.
6 udpEndpointRemotePort	UNSIGNED32 Legal values: 0 .. 65535 InetPortNumber	NoAccess	Note: this object is based on the InetPortNumber TEXTUAL-CONVENTION. The remote port number for this UDP endpoint. If datagrams from any remote system are to be accepted, this value is zero.
7 udpEndpointInstance	UNSIGNED32 Legal values: 1 .. -1	NoAccess	The instance of this tuple. This object is used to distinguish among multiple processes 'connected' to the same UDP endpoint. For example, on a system implementing the BSD sockets interface, this would be used to support the SO_REUSEADDR and SO_REUSEPORT socket options.

Other udpEndpointTable Columns:

Name	Type	Access	Description
8 udpEndpointProcess	UNSIGNED32	ReadOnly	The system's process ID for the process associated with this endpoint, or zero if there is no such process. This value is expected to be the same as HOST-RESOURCES-MIB::hrSWRunIndex or SYSAPPL-MIB:: sysApplElmtRunIndex for some row in the appropriate tables.

DEPRECATED OR OBSOLETE OR HISTORIC OBJECTS

NOTIFICATIONS

TEXTUAL CONVENTIONS

These TEXTUAL-CONVENTIONS are used in other parts of the document above. They are SNMP's way of defining a datatype that is used repeatedly by other MIB objects. Any implementation implementing objects that use one of these definitions must follow its DESCRIPTION clause as well as the DESCRIPTION clause of the object itself.

Name	Type	Description
InetPortNumber	UNSIGNED32	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 . 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.
InetAddress	OCTETSTR	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.
InetAddressType	INTEGER Value Label/Meaning 0 unknown 1 ipv4 2 ipv6 3 ipv4z 4 ipv6z 16 dns	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)).

TREE VIEW

Tree view generated by running: snmptranslate -Tp UDP-MIB::udp