-- extracted from draft-ietf-dhcp-server-mib-07.txt -- at Fri May 14 06:20:53 2004 DHCP-SERVER-MIB DEFINITIONS ::= BEGIN IMPORTS Counter64, Counter32, Gauge32, Unsigned32, mib-2, MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY, IpAddress FROM SNMPv2-SMI TEXTUAL-CONVENTION, RowStatus, DisplayString, TruthValue, DateAndTime FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF; dhcp OBJECT-IDENTITY STATUS current DESCRIPTION "The dhcp branch in the standard network management framework." ::= { mib-2 99 } -- IANA will make official assignment serverMIB MODULE-IDENTITY LAST-UPDATED "2002-02-14 11:26" ORGANIZATION "IETF DHC Working Group" CONTACT-INFO " Richard Barr Hibbs Postal: 952 Sanchex Street San Francisco, California 94114-3362 USA Tel: +1-(415)-648-3920 Fax: +1-(415)-648-9017 E-mail: rbhibbs@pacbell.net Glenn Waters Postal: Nortel Networks, Inc. 310-875 Carling Avenue Ottawa, Ontario K1S 5P1 Canada Tel: +1-(613)-798-4925 E-mail: gww@NortelNetworks.com " DESCRIPTION "The MIB module for entities implementing the server side of the Bootstrap Protocol (BOOTP) and the Dynamic Host Configuration protocol (DHCP) for Internet Protocol version 4(IPv4). This MIB does not include support for Dynamic DNS (DDNS) updating nor for the DHCP Failover Protocol." ::= { dhcp 1 } serverMIBObjects OBJECT-IDENTITY STATUS current DESCRIPTION "DHCP Server MIB objects are all defined in this branch." ::= { serverMIB 1 } serverSystem OBJECT-IDENTITY STATUS current DESCRIPTION "Group of objects that are related to the overall system." ::= { serverMIBObjects 1 } bootpCounters OBJECT-IDENTITY STATUS current DESCRIPTION "Group of objects that count various BOOTP events." ::= { serverMIBObjects 2 } dhcpCounters OBJECT-IDENTITY STATUS current DESCRIPTION "Group of objects that count various DHCP events." ::= { serverMIBObjects 3 } bootpOptionalStatistics OBJECT-IDENTITY -- /*renamed*/ STATUS current DESCRIPTION "Group of objects that measure various BOOTP statistics." ::= { serverMIBObjects 4 } dhcpOptionalStatistics OBJECT-IDENTITY -- /*renamed*/ STATUS current DESCRIPTION "Group of objects that measure various DHCP statistics." ::= { serverMIBObjects 5 } serverConfiguration OBJECT-IDENTITY STATUS current DESCRIPTION "Objects that contain pre-configured and dynamic configuration information." ::= { serverMIBObjects 6 } bootpClients OBJECT-IDENTITY STATUS current DESCRIPTION "Objects that map bootp clients to IP addresses." ::= { serverMIBObjects 7 } dhcpClients OBJECT-IDENTITY STATUS current DESCRIPTION "Objects that map DHCP clients to IP addresses." ::= { serverMIBObjects 8 } -- Textual conventions defined by this memo DhcpTimeInterval ::= TEXTUAL-CONVENTION SYNTAX Unsigned32 STATUS current DESCRIPTION "The number of milliseconds that has elapsed since some epoch. Systems that cannot measure events to the millisecond resolution SHOULD round this value to the next available resolution that the system supports." HardwareAddressType ::= TEXTUAL-CONVENTION SYNTAX OCTET STATUS current REFERENCE "RFC 2131" DESCRIPTION "The value of the hardware type field, as used in ARP messages (e.g., 1 for Ethernet, 6 for token ring). IANA maintains the list of registered numbers for this field." HardwareAddressLength ::= TEXTUAL-CONVENTION SYNTAX OCTET STATUS current REFERENCE "RFC 2131" DESCRIPTION "The length in octets of the hardware address field (e.g., 6 for Ethernet). IANA maintains the list of registered numbers for this field." MacAddress ::= TEXTUAL-CONVENTION SYNTAX OCTET STRING (SIZE (1..16)) DISPLAY-HINT "t,l,xx[:xx...]" STATUS current REFERENCE "RFC 2131" DESCRIPTION "A Layer 1 address, the hardware address of the MAC (Media Adapter Card) interface. The address length is fixed for a given hardware address type, but varies by type." PhysicalAddress ::= TEXTUAL-CONVENTION SYNTAX SEQUENCE OF { HardwareAddressType, HardwareAddressLength, MacAddress } DISPLAY-HINT "t,l,xx[:xx...]" STATUS current REFERENCE "RFC 2131" DESCRIPTION "A Layer 1 address which includes the hardware type space as well as the usual MAC address. This encoding is intended to mirror the representation of physical addresses in DHCP." DhcpLabel ::= TEXTUAL-CONVENTION SYNTAX DisplayString (SIZE (1..100)) DISPLAY-HINT STATUS current DESCRIPTION -- serverSystem Group serverSystemDescr OBJECT-TYPE SYNTAX DisplayString (SIZE (0..255)) MAX-ACCESS read-only STATUS current DESCRIPTION "A textual description of the server. This value should include the full name and version identification of the server." ::= { serverSystem 1 } serverSystemObjectID OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-only STATUS current DESCRIPTION "The vendor's authoritative identification of the network management subsystem contained in this entity. This value is allocated within the SMI enterprise subtree (1.3.6.1.4.1) and provides an easy and unambiguous means for determining 'what kind of server' is being managed. For example, if vendor 'VeryBigServers, Inc.' is assigned the subtree 1.3.6.1.4.1.4242, it may assign the identifier 1.3.6.1.4.1.4242.1.1 to its `Hercules DHCP Server'." ::= { serverSystem 2 } -- dhcpCounters Group -- DHCP received packet counters dhcpCountDiscovers OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPDISCOVER (option 53 with value 1) packets received." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 1 } dhcpCountRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPREQUEST (option 53 with value 3) packets received." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 2 } dhcpCountReleases OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPRELEASE (option 53 with value 7) packets received." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 3 } dhcpCountDeclines OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPDECLINE (option 53 with value 4) packets received." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 4 } dhcpCountInforms OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPINFORM (option 53 with value 8) packets received." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 5 } -- /*renumbered*/ dhcpCountLeaseQueries OBJECT-TYPE -- /*new*/ SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPLEASEQUERY (option 53 with value TBD) packets received." REFERENCE "draft-ietf-dhc-leasequery-02.txt." ::= { dhcpCounters 6 } -- /*new*/ -- DHCP sent packet counters dhcpCountOffers OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPOFFER (option 53 with value 2) packets sent." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 11 } -- /*renumbered*/ dhcpCountAcks OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPACK (option 53 with value 5) packets sent." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 12 } -- /*renumbered*/ dhcpCountNacks OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPNACK (option 53 with value 6) packets sent." REFERENCE "RFC2131; RFC2132, section 9.6." ::= { dhcpCounters 13 } -- /*renumbered*/ dhcpCountForcedRenews OBJECT-TYPE -- /*new*/ SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPFORCERENEW (option 53 with value TBD) packets sent." REFERENCE "draft-ietf-dhc-pv4-reconfigure-06.txt." ::= { dhcpCounters 14 } -- /*new*/ dhcpCountKnowns OBJECT-TYPE -- /*new*/ SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPKNOWN (option 53 with value TBD) packets sent." REFERENCE "draft-ietf-dhc-leasequery-02.txt." ::= { dhcpCounters 12 } -- /*new*/ dhcpCountUnknowns OBJECT-TYPE -- /*new*/ SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCPUNKNOWN (option 53 with value TBD) packets sent." REFERENCE "draft-ietf-dhc-leasequery-02.txt." ::= { dhcpCounters 13 } -- /*new*/ -- DHCP packet error counters dhcpCountInvalids OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCP packets received whose DHCP message type (i.e., option number 53) is not understood or handled by the server." ::= { dhcpCounters 17 } -- /*renumbered*/ dhcpCountDroppedUnknownClient OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCP packets dropped due to the server not recognizing or not providing service to the client-id and/or hardware address received in the incoming packet." ::= { dhcpCounters 18 } -- /*renumbered*/ dhcpCountDroppedNotServingSubnet OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of DHCP packets dropped due to the server not being configured or not otherwise able to serve addresses on the subnet from which this message was received." ::= { dhcpCounters 19 } -- /*renumbered*/ -- dhcpOptionalStatistics group dhcpStatMinArrivalInterval OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum amount of time between receiving two DHCP messages. A message is received at the server when the server is able to begin processing the message. This typically occurs immediately after the message is read into server memory. If no messages have been received, then this object contains a zero value." ::= { dhcpOptionalStatistics 1 } -- /*renamed*/ dhcpStatMaxArrivalInterval OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of time between receiving two DHCP messages. A message is received at the server when the server is able to begin processing the message. This typically occurs immediately after the message is read into server memory. If no messages have been received, then this object contains a zero value." ::= { dhcpOptionalStatistics 2 } -- /*renamed*/ dhcpStatLastArrivalTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESSread-only STATUS current DESCRIPTION "The date and time that the last valid DHCP message was received by the server. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a date and time that is all zero." ::= { dhcpOptionalStatistics 3 } dhcpStatSumSquaresArrivalTime OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the squared DHCP packet inter-arrival times in microseconds. This value may be used to compute the variance and standard deviation of the DHCP arrival times. Note that a microsecond resolution of this object requires a clock resolution to the millisecond since the square of a millisecond value produces a value with microsecond resolution." ::= { dhcpOptionalStatistics 4 }-- /*renamed*/ dhcpStatMinResponseTime OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest time interval measured as the difference between the arrival of a DHCP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { dhcpOptionalStatistics 5 }-- /*renamed*/ dhcpStatMaxResponseTime OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The largest time interval measured as the difference between the arrival of a DHCP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { dhcpOptionalStatistics 6 }-- /*renamed*/ dhcpStatSumResponseTime OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the response time intervals in milliseconds where a response time interval is measured as the difference between the arrival of a DHCP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { dhcpOptionalStatistics 7 }-- /*renamed*/ dhcpStatSumSquaresResponseTime OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the squared DHCP packet response times in micro- seconds. This value may be used to compute the variance and standard deviation of the DHCP response times. Note that a microsecond resolution of this object requires a clock resolution to the millisecond since the square of a millisecond value produces a value with microsecond resolution." ::= { dhcpOptionalStatistics 8 }-- /*renamed*/ -- bootpCounters Group bootpCountRequests OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received that contain a Message Type of 1 (BOOTREQUEST) in the first octet and do not contain option number 53 (DHCP Message Type) in the options." REFERENCE "RFC-1541." ::= { bootpCounters 1 }-- /*renamed*/ bootpCountInvalids OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received that do not contain a Message Type of 1 (BOOTREQUEST) in the first octet or are not valid BOOTP packets (e.g., too short, invalid field in packet header)." ::= { bootpCounters 2 }-- /*renamed*/ bootpCountReplies OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets sent that contain a Message Type of 2 (BOOTREPLY) in the first octet and do not contain option number 53 (DHCP Message Type) in the options." REFERENCE "RFC-1541." ::= { bootpCounters 3 }-- /*renamed*/ bootpCountDroppedUnknownClients OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of BOOTP packets dropped due to the server not recognizing or not providing service to the hardware address received in the incoming packet." ::= { bootpCounters 4 }-- /*renamed*/ bootpCountDroppedNotServingSubnet OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of BOOTP packets dropped due to the server not being configured or not otherwise able to serve addresses on the subnet from which this message was received." ::= { bootpCounters 5 }-- /*renamed*/ -- bootpOptionalStatistics group bootpStatMinArrivalInterval OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum amount of time between receiving two BOOTP messages. A message is received at the server when the server is able to begin processing the message. This typically occurs immediately after the message is read into server memory. If no messages have been received, then this object contains a zero value." ::= { bootpOptionalStatistics 1 }-- /*renamed*/ bootpStatMaxArrivalInterval OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of time between receiving two BOOTP messages. A message is received at the server when the server is able to begin processing the message. This typically occurs immediately after the message is read into server memory. If no messages have been received, then this object contains a zero value." ::= { bootpOptionalStatistics 2 }-- /*renamed*/ bootpStatLastArrivalTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "The date and time that the last valid BOOTP message was received by the server. Invalid messages do not cause this value to change. If valid no messages have been received, then this object contains a date and time that is all zero." ::= { bootOptionalpStatistics 3 } -- /*renamed*/ bootpStatSumSquaresArrivalTime OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the squared BOOTP packet inter-arrival times in microseconds. This value may be used to compute the variance and standard deviation of the BOOTP arrival times. Note that a microsecond resolution of this object requires a clock resolution to the millisecond since the square of a millisecond value produces a value with microsecond resolution." ::= { bootpOptionalStatistics 4 }-- /*renamed*/ bootpStatMinResponseTime OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest time interval measured as the difference between the arrival of a BOOTP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { bootpOptionalStatistics 5 }-- /*renamed*/ bootpStatMaxResponseTime OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The largest time interval measured as the difference between the arrival of a BOOTP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { bootpOptionalStatistics 6 }-- /*renamed*/ bootpStatSumResponseTime OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the response time intervals in milliseconds where a response time interval is measured as the difference between the arrival of a BOOTP message at the server and the successful transmission of the response to that message. A message is received at the server when the server is able to begin processing the message. A message is transmitted after the server has no further use for the message. Note that the operating system may still have the message queued internally. The operating system queue time is not to be considered as part of the response time. Invalid messages do not cause this value to change. If no valid messages have been received, then this object contains a zero value." ::= { bootpOptionalStatistics 7 }-- /*renamed*/ bootpStatSumSquaresResponseTime OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the squared BOOTP packet response times in micro- seconds. This value may be used to compute the variance and standard deviation of the BOOTP response times. Note that a microsecond resolution of this object requires a clock resolution to the millisecond since the square of a millisecond value produces a value with microsecond resolution." ::= { bootpOptionalStatistics 8 }-- /*renamed*/ -- server configurationgroup -- server shared network table serverSharedNetworkTable OBJECT-TYPE SYNTAX SEQUENCE OF serverSharedNetworkEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A list of shared networks that are configured in the server. A shared network is the logical aggregation of one or more subnets that share a common network segment (e.g., multi-tapped coaxial cable, wiring hub, or switch). This table is present ONLY for those servers that organize the ranges of addresses available for assignment where a higher-level grouping (i.e., the "shared" network) exists above ranges and subnets." ::= { serverConfiguration 1 } serverSharedNetworkEntry OBJECT-TYPE SYNTAX ServerSharedNetworkEntry MAX-ACCESS not-accessible STATUS current INDEX { serverSharedNetworkName } DESCRIPTION "A logical row in the serverSharedNetworkTable." ::= { serverSharedNetworkTable 1} ServerSharedNetworkEntry ::= SEQUENCE { serverSharedNetworkName DhcpLabel, serverSharedNetworkFreeAddresses Unsigned32, serverSharedNetworkReservedAddresses Unsigned32,-- /*new*/ serverSharedNetworkTotalAddresses Unsigned32-- /*renamed*/ } serverSharedNetworkName OBJECT-TYPE SYNTAX DhcpLabel-- /*modified*/ MAX-ACCESS not-accessible STATUS current DESCRIPTION "The name of the shared network, which uniquely identifies an entry in the serverSharedNetworkTable." ::= { serverSharedNetworkEntry 1 } serverSharedNetworkFreeAddresses OBJECT-TYPE-- /*renamed*/ SYNTAX Unsigned32 MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The number of IP addresses which are available within this shared network. If the server does not count free addresses by shared network segment, this value will be zero." ::= { serverSharedNetworkEntry 2 }-- /*renumbered*/ serverSharedNetworkReservedAddresses OBJECT-TYPE-- /*new*/ SYNTAX Unsigned32 MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The number of IP addresses which are reserved (not available for assignement) within this shared network. If the server does not count reserved addresses by shared network segment, this value will be zero." ::= { serverSharedNetworkEntry 3 } serverSharedNetworkTotalAddresses OBJECT-TYPE-- /*new*/ SYNTAX Unsigned32 MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The number of IP addresses which are available within this shared network. If the server does not count total addresses by shared network segment, this value will be zero." ::= { serverSharedNetworkEntry 4 } -- server subnet table serverSubnetTable OBJECT-TYPE SYNTAX SEQUENCE OF serverSubnetEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A list of subnets that are configured in this server." ::= { serverConfiguration 2 } serverSubnetEntry OBJECT-TYPE SYNTAX ServerSubnetEntry MAX-ACCESS not-accessible STATUS current INDEX { serverSubnet } DESCRIPTION "A logical row in the serverSubnetTable." ::= { serverSubnetTable 1 } ServerSubnetEntry ::= SEQUENCE { serverSubnet IpAddress, serverSubnetMask IpAddress, serverSubnetSharedNetworkName DhcpLabel,-- /*modified*/ serverSubnetFreeAddressLowThreshold Unsigned32, serverSubnetFreeAddressHighThreshold Unsigned32, ServerSubnetFreeAddresses Unsigned32 -- /*renamed*/ } serverSubnet OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only-- /*changed*/ STATUS current DESCRIPTION "The IP address of the subnet." ::= { serverSubnetEntry 1 } serverSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The subnet mask of the subnet. This MUST be the same as the value of DHCP option 1 offered to clients on this subnet." ::= { serverSubnetEntry 2 } serverSubnetSharedNetworkName OBJECT-TYPE-- /*renamed*/ SYNTAX DhcpLabel-- /*modified*/ MAX-ACCESS read-only STATUS current DESCRIPTION "The shared subnet name (used as an index into the server shared subnet table) to which this subnet belongs. This value will be null for servers that do not organize or describe networks in this manner." ::= { serverSubnetEntry 3 } serverSubnetFreeAddressLowThreshold OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The low threshold for available free addresses in this subnet. If the value for available free addresses in this subnet becomes equal to or less than this value, a serverSubnetFreeAddressLowThreshold event is generated for this shared network. No more serverSubnetFreeAddressLowThreshold events will be generated for this subnet during this execution of the DHCP server until the value for available free addresses has exceeded the value of serverSubnetFreeAddressHighThreshold." ::= { serverSubnetEntry 4 } serverSharedNetworkFreeAddressHighThreshold OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The high threshold for available free addresses in this subnet. If a serverSubnetFreeAddressLowThreshold event has been generated for this subnet, and the value for available free addresses has exceeded the value of serverSubnetFreeAddressHighThreshold, then a serverFreeAddressessHigh event will be generated. No more serverFreeAddressessHigh events will be generated for this subnet during this execution of the DHCP server until the value for available free addresses becomes equal to or less than the value of serverSubnetFreeAddressHighThreshold." ::= { serverSubnetEntry 5 } -- server range table serverRangeTable OBJECT-TYPE SYNTAX SEQUENCE OF serverRangeEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A list of ranges that are configured on this server." ::= { serverConfiguration 3 } serverRangeEntry OBJECT-TYPE SYNTAX ServerRangeEntry MAX-ACCESS not-accessible STATUS current INDEX { serverRangeStart } DESCRIPTION "A logical row in the serverRangeTable." ::= { serverRangeTable 1 } ServerRangeEntry ::= SEQUENCE { serverRangeStart IpAddress, serverRangeEnd IpAddress, serverRangeSubnetMask IpAddress, serverRangeInUse Gauge32, serverRangeOutstandingOffers Gauge32 } serverRangeStart OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the first address in the range. The value of range start must be less than or equal to the value of range end." ::= { serverRangeEntry 1 } serverRangeEnd OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the last address in the range. The value of range end must be greater than or equal to the value of range start." ::= { serverRangeEntry 2 } serverRangeSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The subnet address mask for this range." ::= { serverRangeEntry 3 } serverRangeInUse OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of addresses in this range that are currently in use. This number includes those addresses whose lease has not expired and addresses which have been reserved (either by the server or through configuration)." ::= { serverRangeEntry 4 } serverRangeOutstandingOffers OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of outstanding DHCPOFFER messages for this range is reported with this value. An offer is outstanding if the server has sent a DHCPOFFER message to a client, but has not yet received a DHCPREQUEST message from the client nor has the server-specific timeout (limiting the time in which a client can respond to the offer message) for the offer message expired." ::= { serverRangeEntry 5 } -- server address table serverAddressTable OBJECT-TYPE SYNTAX SEQUENCE OF serverAddressEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An optional list of addresses that are known by this server. The list MUST contain addresses that have not expired. The list MUST NOT contain addresses that have never been assigned by the server UNLESS the lease is pre-configured in the server (e.g., a static lease for a host). Expired leases MAY appear during the time they are 'remembered' by the server for subsequent assignment to the same host." ::= { serverConfiguration 4 } serverAddressEntry OBJECT-TYPE SYNTAX ServerAddressEntry MAX-ACCESS not-accessible STATUS current INDEX { serverAddress } DESCRIPTION "A logical row in the serverAddressTable." ::= { serverAddressTable 1 } ServerAddressEntry ::= SEQUENCE { serverAddress IpAddress, serverAddressSubnetMask IpAddress, serverAddressRange IpAddress, serverAddressType INTEGER, serverAddressTimeRemaining Unsigned32, serverAddressAllowedProtocol INTEGER, serverAddressServedProtocol INTEGER, serverAddressMacAddress OCTET STRING, serverAddressClientId OCTET STRING, serverAddressHostName DisplayString, serverAddressDomainName DisplayString } serverAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The IP address of the entry." ::= { serverAddressEntry 1 } serverAddressSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The subnet mask (DHCP option 1) provided to the client offered this address. The subnet, resulting from logically ANDing the subnet mask with the entry's IP address, must be configured on this server and appear as a row in the dhcpSubnetTable." ::= { serverAddressEntry 2 } serverAddressRange OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The starting IP address (serverRangeStart object) of the range to which this address belongs. If the address does not fall into one of the configured ranges (e.g., a statically configured address on a subnet) the range may be 0.0.0.0." ::= { serverAddressEntry 3 } serverAddressType OBJECT-TYPE SYNTAX INTEGER { static(1), dynamic(2), expired(3), -- /*new*/ configuration-reserved(4), -- /*renumbered*/ server-reserved(5) -- /*renumbered*/ } MAX-ACCESS read-only STATUS current DESCRIPTION "The type of this address. Types are: (1) static addresses defined by the server configuration. (2) dynamic addresses defined by the server configuration AND actually assigned by the server. (3) expired dynamic addresses, previously assigned by the server and 'remembered' for subsequent assignment to the same host. (4) Addresses reserved (i.e., not assignable) by the server configuration. (5) Addresses previously assigned by the server, but temporarily or permanently removed from assignable state for some reason, e.g., the server received an ICMP ECHOREPLY for the IP address or a DHCPDECLINE message has been received for the IP address." ::= { serverAddressEntry 4 } serverAddressTimeRemaining OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of seconds until the lease expires. A value of 4294967295 (i.e., 0xFFFFFFFF) should be used for leases that have a lease time which is 'infinite' and for BOOTP leases." ::= { serverAddressEntry 5 } serverAddressAllowedProtocol OBJECT-TYPE SYNTAX INTEGER { none(1), bootp(2), dhcp(3), bootp-or-dhcp(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "The type of protocol that is allowed to be used to serve this address. A type of none (1) indicates that the address is not available to be served (e.g., a reserved address).Type (2) are reserved for BOOTP only devices, while type (3) are reserved for DHCP only devices. A type of bootp-or-dhcp (4) may be offered to any type of client." ::= { serverAddressEntry 6 } serverAddressServedProtocol OBJECT-TYPE SYNTAX INTEGER { none(1), bootp(2), dhcp(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "The type of protocol that was used when this address was assigned. This object will have the value of none (1) if the address has not been served." ::= { serverAddressEntry 7 } serverAddressHardwareAddress OBJECT-TYPE SYNTAX PhysicalAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The hardware type and hardware address of the client that has been assigned this lease. The first octet of this object contains the hardware type from the 'htype' field of the BOOTP packet and the remaining octets contain the hardware address from the 'chaddr' field of the BOOTP packet. This object may be empty if the address has not been previously served." ::= { serverAddressEntry 8 } serverAddressClientId OBJECT-TYPE SYNTAX OCTET STRING (SIZE (0..255)) MAX-ACCESS read-only STATUS current DESCRIPTION "The client-id of the client that has been assigned this lease. The client-id is the value specified in option 61 (client-id option) when the lease was assigned. This object may be empty if the lease has not been previously assigned or if the client- id option was not specified when the address was assigned." ::= { serverAddressEntry 9 } serverAddressHostName OBJECT-TYPE SYNTAX DisplayString (SIZE (1..255)) MAX-ACCESS read-only STATUS current DESCRIPTION "The host name (DHCP option 12) the client is configured to use, or if no host name was configured then the host name that the client supplied when requesting an address. While this object has a maximum size of 255 octets, a Fully-Qualified Domain Name (FQDN) consisting of a Host Name part and a Domain Name part is currently limited to 255 octets. Therefore, the sum of the string lengths for this object and the serverAddressDomainName must, in practice, be less than 256 octets." ::= { serverAddressEntry 10 } serverAddressDomainName OBJECT-TYPE SYNTAX DisplayString (SIZE (1..255)) MAX-ACCESS read-only STATUS current DESCRIPTION "The domain name (DHCP option 15) assigned to the client. While this object has a maximum size of 255 octets, a Fully- Qualified Domain Name (FQDN) consisting of a Host Name part and a Domain Name part is currently limited to 255 octets, less the separator (".") character. Therefore, the sum of the string lengths for this object and the serverAddressHostName must, in practice, be less than 256 octets." ::= { serverAddressEntry 11 } -- Server Client Table serverClientTable OBJECT-TYPE SYNTAX SEQUENCE OF serverClientEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A list of clients that are known by this server. Details about the clients may be found by indexing into the serverAddressTable using the serverClientHardwareAddress and serverClientAddress objects. This table is indexed first by the MAC address of the client and then by the subnet address on which the client resides. The subnet is included as an index since a MAC address is only guaranteed to be unique within a subnet (i.e., a MAC address is not globally unique)." ::= { serverConfiguration 5 } serverClientEntry OBJECT-TYPE SYNTAX ServerClientEntry MAX-ACCESS not-accessible STATUS current INDEX { serverClientHardwareAddress, serverClientAddress } DESCRIPTION "A logical row in the serverClientTable. An entry in this table may be a client that requested an address but was refused (e.g., not authorized).Servers MAY track these types of clients if desired and may choose to remove such client entries using a server defined algorithm. As an example, a server may choose to keep client request that does not map to an address for a one hour time period before removing that entry from this table." ::= { serverClientTable 1 } ServerClientEntry ::= SEQUENCE { serverClientHardwareAddress PhysicalAddress serverClientSubnetMask IpAddress, serverClientAddress IpAddress, serverClientLastRequestTime DateAndTime, serverClientLastRequestType INTEGER, serverClientLastResponseType INTEGER } serverClientHardwareAddress OBJECT-TYPE SYNTAX PhysicalAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The hardware type and hardware address of the client that has been assigned this lease. The first octet of this object contains the hardware type from the 'htype' field of the BOOTP packet and the remaining octets contain the hardware address from the 'chaddr' field of the BOOTP packet." ::= { serverClientEntry 1 } serverClientSubnetMask OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS not-accessible STATUS current DESCRIPTION "The subnet mask (DHCP option 1) applied to serverClientAddress." ::= { serverClientEntry 2 } serverClientAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The IP address of the entry. May be used to index into the serverAddressTable. May be 0.0.0.0 if an address is not associated with this client." ::= { serverClientEntry 3 } serverClientLastRequestTime OBJECT-TYPE SYNTAX DhcpTimeInterval MAX-ACCESS read-only STATUS current DESCRIPTION "The timestamp of the last request received, to millisecond precision if available on the server." ::= { serverClientEntry 4 } serverClientLastRequestType OBJECT-TYPE SYNTAX INTEGER { bootprequest(0) dhcpdiscover(1), dhcprequest(3), dhcpdecline(4), dhcprelease(7), dhcpinform(8) dhcpleasequery(TBD),-- /*new*/ } MAX-ACCESS read-only STATUS current DESCRIPTION "The type of the last request message received for this client.If the server does not capture this information, the value 32,767 is returned." REFERENCE "RFC2131; RFC2132, section 9.6; draft-ietf-dhc-leasequery- 02.txt." ::= { serverClientEntry 5 } serverClientLastResponseType OBJECT-TYPE SYNTAX INTEGER { bootpreply(1), dhcpoffer(2), dhcpack(5), dhcpnak(6) dhcpknown(TBD),-- /*new*/ dhcpunknown(TBD)-- /*new*/ } MAX-ACCESS read-only STATUS current DESCRIPTION "The type of the last response message sent to this client. If the server does not capture this information, the value 32,767 is returned." REFERENCE "RFC2131; RFC2132, section 9.6;draft-ietf-dhc-pv4-reconfigure- 06.txt;draft-ietf-dhc-leasequery-02.txt" ::= { serverClientEntry 6 } --serverNotifyObjects: Objects which are used only in notifications serverNotifyDuplicateIPAddress OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The IP address found to be a duplicate. Duplicates are detected by servers which issue an ICMP ECHOREQUEST prior to offering an IP address lease." ::= { serverNotifyObjects 1 } serverNotifyDuplicateMAC OBJECT-TYPE SYNTAX PhysicalAddress MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The offending MAC address which caused a duplicate IP address to be detected, if captured by the server, else 00-00-00-00-00- 00." ::= { serverNotifyObjects 2 } serverNotifyClientDuplicateIP OBJECT-TYPE-- /*renamed*/ SYNTAX IpAddress MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "The IP Address offered by a server that the requesting client has determined to be a duplicate, detected by means of a gratuitous ARP message and reported through a DHCPDECLINE message." ::= { serverNotifyObjects 3 } -- Notifications serverMIBNotificationPrefix OBJECT IDENTIFIER ::= { serverMIB 2 }serverMIBNotifications OBJECT IDENTIFIER ::= { serverMIBNotificationPrefix 0 } serverFreeAddressLow NOTIFICATION-TYPE OBJECTS { serverSharedNetworkFreeAddressLowThreshold, serverSharedNetworkFreeAddresses } STATUS current DESCRIPTION "This notification signifies that the number of available IP addresses for a particular shared network has fallen below the value of serverSharedNetworkFreeAddressLowThreshold for that shared network." ::= { serverMIBNotifications 1 } serverFreeAddressHigh NOTIFICATION-TYPE OBJECTS { serverSharedNetworkFreeAddressHighThreshold, serverSharedNetworkFreeAddresses } STATUS current DESCRIPTION "This notification signifies that the number of available IP addresses for a particular shared network has risen above the value of serverSharedNetworkFreeAddressHighThreshold for that shared network." ::= { serverMIBNotifications 2 } serverServerStart NOTIFICATION-TYPE OBJECTS { serverNotifyClientDuplicateIP } STATUS current DESCRIPTION "This notification signifies that the server of the specified type has started on the host from which this notification has been sent." ::= { serverMIBNotifications 3 } serverServerStop NOTIFICATION-TYPE OBJECTS { serverNotifyClientDuplicateIP } STATUS current DESCRIPTION "This notification signifies that the server of the specified type has stopped normally on the host from which this notification has been sent." ::= { serverMIBNotifications 4 } serverDuplicateAddress NOTIFICATION-TYPE OBJECTS { serverNotifyDuplicateIPAddress, serverNotifyDuplicateMAC, serverNotifyClientDuplicateMAC } STATUS current DESCRIPTION "This notification signifies that a duplicate IP address has been detected. The DHCP server can detect this condition through the ping-before-offer mechanism. Alternatively, the client may have sent a DHCPDECLINE back to the server; this is assumed to be the result of the client detecting that the address was in use. In either case, the DHCP server marks the IP address as unavailable for leasing to clients. The serverNotifyClientDuplicateMAC object indicates whether the client or server detected this condition." ::= { serverMIBNotifications 5 }-- /*renumbered*/ serverAddressConflict NOTIFICATION-TYPE OBJECTS { serverNotifyClientDuplicateIP } STATUS current DESCRIPTION ::= { serverMIBNotifications 6 }-- /*renumbered*/ -- Conformance serverMIBConformanceOBJECT-IDENTITY STATUS current DESCRIPTION "DHCP Server MIB objects are all defined in this branch." ::= { serverMIB 3 } serverMIBCompliancesOBJECT IDENTIFIER ::= { serverMIBConformance 1 } serverMIBGroupsOBJECT IDENTIFIER ::= { serverMIBConformance 2 } -- Compliance groups serverMIBCompliance MODULE-COMPLIANCE MODULE-- this module MANDATORY-GROUPS { serverSystemGroup, bootpCountersGroup, dhcpCountersGroup, serverConfigurationGroup, serverClientsGroup } OPTIONAL-GROUPS { bootpOptionalStatisticsGroup, dhcpOptionalStatisticsGroup } STATUS current DESCRIPTION "Describes the requirements for conformance to the DCHP Server MIB" ::= { serverMIBCompliances 1 } -- Object groups serverSystemGroup OBJECT-GROUP OBJECTS { serverSystemDescr, serverSystemObjectID } STATUS current DESCRIPTION "Objects belonging to the serverSystemGroup." ::= { serverMIBGroups 1 } bootpCountersGroup OBJECT-GROUP OBJECTS { bootpCountRequests, bootpCountInvalids, bootpCountReplies, bootpCountDroppedUnknownClients, bootpCountDroppedNotServingSubnet } STATUS current DESCRIPTION "Objects belonging to the bootpBountersGroup." ::= { serverMIBGroups 2 } dhcpCountersGroup OBJECT-GROUP OBJECTS { dhcpCountDiscovers, dhcpCountRequests, dhcpCountReleases, dhcpCountDeclines, dhcpCountInforms, dhcpCountInvalids, dhcpCountOffers, dhcpCountAcks, dhcpCountNacks, dhcpCountDroppedUnknownClient, dhcpCountDroppedNotServingSubnet } STATUS current DESCRIPTION "Objects belonging to the dhcpCountersGroup." ::= { serverMIBGroups 3 } bootpOptionalStatisticsGroup OBJECT-GROUP OBJECTS { bootpStatMinArrivalInterval, bootpStatMaxArrivalInterval, bootpStatLastArrivalTime, bootpStatSumSquaresArrivalTime, bootpStatMinResponseTime, bootpStatMaxResponseTime, bootpStatSumReponseTime, bootpStatSumSquaresResponseTime } STATUS current DESCRIPTION "Objects belonging to the bootpOptionalStatisticsGroup." ::= { serverMIBGroups 4 } dhcpOptionalStatisticsGroup OBJECT-GROUP OBJECTS { dhcpStatMinArrivalInterval, dhcpStatMaxArrivalInterval, dhcpStatLastArrivalTime, dhcpStatSumSquaresArrivalTime, dhcpStatMinResponseTime, dhcpStatMaxResponseTime, dhcpStatSumResponseTime, dhcpStatSumSquaresResponseTime } STATUS current DESCRIPTION "Objects belonging to the dhcpOptionalStatisticsGroup." ::= { serverMIBGroups 5 } serverConfigurationGroup OBJECT-GROUP OBJECTS { serverSubnet, serverSubnetMask, serverSubnetSharedNetwork, serverRangeStart, serverRangeEnd, serverRangeSubnetMask, serverRangeInUse, serverRangeOutstandingOffers, serverAddress, serverAddressSubnetMask, serverAddressRange, serverAddressType, serverAddressTimeRemaining, serverAddressAllowedProtocol, serverAddressServedProtocol, serverAddressHardwareAddress, serverAddressClientId, serverAddressHostName, serverAddressDomainName } STATUS current DESCRIPTION "Objects belonging to the serverConfigurationGroup." ::= { serverMIBGroups 6 } serverClientsGroup OBJECT-GROUP OBJECTS { serverClientHardwareAddress, serverClientSubnetMask, serverClientAddress, serverClientLastRequestTime, serverClientLastRequestType, serverClientLastResponseType } STATUS current DESCRIPTION "Objects belonging to the serverClientsGroup." ::= { serverMIBGroups 7 } serverSharedNetworkObjectsGroup OBJECT-GROUP OBJECTS { serverSharedNetworkFreeAddressLowThreshold, serverSharedNetworkFreeAddressHighThreshold, serverSharedNetworkFreeAddressValue } STATUS current DESCRIPTION "DHCP Server MIB objects used in shared networks." ::= { serverMIBGroups 8 } serverNotifyObjectsGroup OBJECT-GROUP OBJECTS { serverNotifyDuplicateIPAddress, serverNotifyDuplicateMAC, serverNotifyClientDuplicateMAC, serverNotifyClientDuplicateIP, serverNotifyContestedIpAddress } STATUS current DESCRIPTION "DHCP Server MIB objects used in notifications." ::= { serverMIBGroups 9 } serverNotificationsGroup NOTIFICATION-GROUP NOTIFICATIONS { serverFreeAddressLow, serverFreeAddressHigh, serverServerStart, serverServerStop, serverDNSQueueTooBig, serverOtherServerNotResponding, serverDuplicateAddress, serverAddressConflict, serverOtherServerResponding, serverFailoverConfigMismatch } STATUS current DESCRIPTION "Notifications that are implemented by the DHCP Server agent." ::= { serverMIBGroups 10 } END -- -- Copyright (C) The Internet Society, 2002.All Rights Reserved. -- -- This document and translations of it may be copied and furnished to -- others, and derivative works that comment on or otherwise explain it -- or assist in its implementation may be prepared, copied, published -- and distributed, in whole or in part, without restriction of any -- kind, provided that the above copyright notice and this paragraph are -- included on all such copies and derivative works.However, this -- document itself may not be modified in any way, such as by removing -- the copyright notice or references to the Internet Society or other -- Internet organizations, except as needed for the purpose of -- developing Internet standards in which case the procedures for -- copyrights defined in the Internet Standards process must be -- followed, or as required to translate it into languages other than -- English. -- -- The limited permissions granted above are perpetual and will not be -- revoked by the Internet Society or its successors or assigns. -- -- This document and the information contained herein is provided on an -- "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING -- TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING -- BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION -- HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF -- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.