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David Leutgeb
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MIBS/allied/AT-DHCP-MIB
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345
MIBS/allied/AT-DHCP-MIB
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-- ============================================================================
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-- AT-ETH.MIB, Allied Telesis enterprise MIB: DHCP module
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--
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-- Extracted from ATROUTER.MIB of pre 2.9.1 release
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--
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-- June 2006, Stan Xiang
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--
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-- Copyright (c) 2006 by Allied Telesis, Inc.
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-- All rights reserved.
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--
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-- ============================================================================
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AT-DHCP-MIB DEFINITIONS ::= BEGIN
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IMPORTS
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MODULE-IDENTITY,
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OBJECT-TYPE,
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NOTIFICATION-TYPE
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FROM SNMPv2-SMI
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DisplayString,
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TruthValue
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FROM SNMPv2-TC
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ifIndex
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FROM IF-MIB
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modules,
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DisplayStringUnsized
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FROM AT-SMI-MIB
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;
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dhcp MODULE-IDENTITY
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LAST-UPDATED "200904010200Z" -- April 1, 2009
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ORGANIZATION "Allied Telesis, Inc"
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CONTACT-INFO
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"http://www.alliedtelesis.com"
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DESCRIPTION
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"This MIB file contains definitions of managed objects for the
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DHCP module. "
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REVISION "200904010200Z" -- April 1, 2009
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DESCRIPTION
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"Added a new TRAP (dhcpRangeExceededThresholdTrap) which will be
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generated when the number of clients allocated for that range exceeds
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a preset threshold."
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REVISION "200606281222Z" -- June 28, 2006
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DESCRIPTION
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"Initial Revision"
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::= { modules 70 }
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-- The DHCP (Dynamic Host Configuration Protocol) module. This group provides
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-- management information for DHCP, which will be implemented in a number of
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-- stages.
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-- stage 1, May/2002, Tony van der Peet
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-- No DHCP MIB has been found in an RFC, so DHCP has to be supported
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-- in the enterprise MIB. Basic request is for a TRAP when a DHCP
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-- host range is exhausted. Some basic variables for the range
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-- information are provided in order to allow lookup of the exhausted
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-- range. Also provided are variables for the express purpose of
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-- adding to the TRAP message.
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-- The DHCP range table. Each entry in the table gives information about a
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-- single DHCP range currently configured in the switch/router.
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dhcpRangeTable OBJECT-TYPE
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SYNTAX SEQUENCE OF DhcpRangeEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"The table of DHCP ranges."
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::= { dhcp 1 }
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dhcpRangeEntry OBJECT-TYPE
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SYNTAX DhcpRangeEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A single entry of the DHCP range table. This contains
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information about a single DHCP range configured on this
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device."
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INDEX { dhcpRangeIndex }
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::= { dhcpRangeTable 1 }
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DhcpRangeEntry ::=
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SEQUENCE {
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dhcpRangeIndex
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INTEGER,
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dhcpRangeName
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DisplayStringUnsized,
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dhcpRangeBaseAddress
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IpAddress,
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dhcpRangeNumberOfAddresses
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INTEGER,
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dhcpRangeGateway
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IpAddress
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}
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dhcpRangeIndex OBJECT-TYPE
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SYNTAX INTEGER
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The index of this DHCP range. DHCP ranges are stored in a list
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which is ordered by range name. The index gives the place in the
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list. Note that if ranges are added or deleted, the index for a
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given range will change. Since this table is read-only, this will
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not have an undue effect, but if in future this table is made
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read-write, a mechanism will have to be created to lock the indices
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of the range table while SET operations are proceeding."
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::= { dhcpRangeEntry 1 }
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dhcpRangeName OBJECT-TYPE
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SYNTAX DisplayStringUnsized (SIZE (1..15))
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The name given to identify this DHCP range. This is the ultimate
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method for uniquely identifying this range. Names are compared without
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regard to case, for example >range1< will be treated as the same as
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>RANGE1<."
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::= { dhcpRangeEntry 2 }
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dhcpRangeBaseAddress OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The base address of this range. This address defines the lower bound
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of the range of IP addresses which can be allocated to devices
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requesting an IP address via DHCP."
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::= { dhcpRangeEntry 3 }
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dhcpRangeNumberOfAddresses OBJECT-TYPE
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SYNTAX INTEGER (1..256)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of IP address in this range. This number defines the upper
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bound of the range of IP addresses which can be allocated to devices
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requesting an IP address via DHCP."
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::= { dhcpRangeEntry 4 }
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dhcpRangeGateway OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The IP address of the BOOTP relay agent which will be relaying DHCP
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requests for this range. If this address is 0.0.0.0, then there will
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be no BOOTP relay agent and the range will be allocated to devices
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directly connected to this device."
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::= { dhcpRangeEntry 5 }
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-- DHCP traps.
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-- DHCP trap variables. special variables set up to act as reference points for
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-- variables sent in TRAPs.
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dhcpTrapVariable OBJECT IDENTIFIER ::= { dhcp 2 }
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dhcpRangeExhaustedGateway OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Whenever a DHCP client attempts to lease an IP address and
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the DHCP server cannot provide an address, this variable is
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set to the gateway address of the DHCP request. The gateway
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address is the IP address of the gateway acting as a BOOTP
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relay agent for the request. If there is no gateway, the
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address will be 0.0.0.0. If the gateway address is non-zero,
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the DHCP range from which the allocation should have been
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made will able to be identified by lookup in the DHCP range
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table."
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::= { dhcpTrapVariable 1 }
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dhcpRangeExhaustedInterface OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Whenever a DHCP client attempts to lease an IP address and
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the DHCP server cannot provide an address, this variable is
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set to the IP address of the interface which received the
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DHCP request. If the gateway address associated with the
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failed DHCP request is 0.0.0.0, the interface address will
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be able to be used to lookup the range that was exhausted
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and from which the allocation should have been made."
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::= { dhcpTrapVariable 2 }
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dhcpRangeExceededRange OBJECT-TYPE
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SYNTAX DisplayStringUnsized (SIZE (1..15))
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"Whenever a DHCP client attempts to lease an IP address and
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the DHCP server has exceeded a pre-defined threshold this variable
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is set to the name of the range which received the DHCP request."
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::= { dhcpTrapVariable 3 }
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dhcpRangeExceededClients OBJECT-TYPE
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SYNTAX INTEGER (1..1024)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of IP addresses statically defined for a range upon creation.
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Based on the starting IP address for a range, this number determines the
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upper bound of IP addresses which can be allocated to devices requesting
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an IP address via DHCP."
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::= { dhcpTrapVariable 4 }
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dhcpRangeExceededRemaining OBJECT-TYPE
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SYNTAX INTEGER (1..1024)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of IP addresses still available to be allocated in this
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range."
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::= { dhcpTrapVariable 5 }
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dhcpRangeExceededPercentage OBJECT-TYPE
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SYNTAX INTEGER (0..100)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The percentage of IP addresses in a range that are currently in use."
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::= { dhcpTrapVariable 6 }
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dhcpTraps OBJECT IDENTIFIER ::= { dhcp 0 }
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dhcpRangeExhaustedTrap NOTIFICATION-TYPE
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OBJECTS { dhcpRangeExhaustedGateway , dhcpRangeExhaustedInterface }
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STATUS current
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DESCRIPTION
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"This trap is generated when a DHCP client makes a request for
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an IP address and the request cannot be satisfied because all
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addresses in the range are already allocated to other devices."
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::= { dhcpTraps 1 }
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dhcpRangeExceededThresholdTrap NOTIFICATION-TYPE
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OBJECTS { dhcpRangeExhaustedInterface, dhcpRangeExceededRange,
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dhcpRangeExceededClients, dhcpRangeExceededRemaining,
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dhcpRangeExceededPercentage }
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STATUS current
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DESCRIPTION
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"This trap is generated when a DHCP client makes a request for
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an IP address and a pre-defined usage threshold has been exceeded.
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The IP addresses will continue to be allocated until the range
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is exhausted."
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::= { dhcpTraps 2 }
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dhcpRangeExceededThresholdClearTrap NOTIFICATION-TYPE
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OBJECTS { dhcpRangeExhaustedInterface, dhcpRangeExceededRange,
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dhcpRangeExceededClients, dhcpRangeExceededRemaining,
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dhcpRangeExceededPercentage }
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STATUS current
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DESCRIPTION
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"This trap is generated when the number of allocated clients
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in a designated range falls below a pre-defined usage threshold."
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::= { dhcpTraps 3 }
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-- The DHCP client status table. Each entry in the table gives information about
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-- ip addresses currently configured on created ranges on the switch/router.
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-- Information shown are the client ip address, clientID, ClientState, ClientType,
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-- ClientExpiry
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-- This group was added on 6/Jan/2004 by Sean Lin on request from ATKK for Yahoo!BB
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dhcpClientTable OBJECT-TYPE
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SYNTAX SEQUENCE OF DhcpClientEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"The table of defined DHCP range client addresses."
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::= { dhcp 3 }
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dhcpClientEntry OBJECT-TYPE
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SYNTAX DhcpClientEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A single entry of the DHCP range client table. This contains
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information about a single DHCP range client address."
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INDEX { dhcpRangeIndex, dhcpClientIpAddress }
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::= { dhcpClientTable 1 }
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DhcpClientEntry ::=
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SEQUENCE {
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dhcpClientIpAddress
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IpAddress,
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dhcpClientID
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OCTET STRING,
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dhcpClientState
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INTEGER,
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dhcpClientType
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INTEGER,
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dhcpClientExpiry
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OCTET STRING
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}
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dhcpClientIpAddress OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"An IP address from the range of available addresses."
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::= { dhcpClientEntry 1 }
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dhcpClientID OBJECT-TYPE
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SYNTAX OCTET STRING
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The hardware address of the client, if any, that has been
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assigned the IP address."
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::= { dhcpClientEntry 2 }
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dhcpClientState OBJECT-TYPE
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SYNTAX INTEGER {unused (0), reclaiming (1), inuse (2), offered (3) }
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The state of the IP address; one of unused, inuse or
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reclaim."
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::= { dhcpClientEntry 3 }
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dhcpClientType OBJECT-TYPE
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SYNTAX INTEGER {auto (1), dyn (2), static (3) }
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The type of allocation mechanism applied to the IP address;
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one of static, auto or dyn."
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::= { dhcpClientEntry 4 }
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dhcpClientExpiry OBJECT-TYPE
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SYNTAX OCTET STRING
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The expiry date for dynamically allocated IP address."
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::= { dhcpClientEntry 5 }
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END
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