DLINK-3100-DHCP-MIB

All MIBs › DLINK-3100-DHCP-MIB

Organization: Dlink, Inc.

Last Updated: 2003-10-18

Category: Protocol: DHCP, Vendor: D-Link

Description: D-Link 3100 DHCP MIB providing objects for DHCP server, relay, and snooping configuration and status management.

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What Is DLINK-3100-DHCP-MIB?

This is a vendor-specific MIB from D-Link for the 3100 series devices, providing configuration and status objects for DHCP server, relay, and snooping functions. It exposes DHCP relay enable/exists flags, a table of configured next-hop DHCP servers with per-server security thresholds, and a table binding DHCP relay behavior to specific interfaces. Its monitoring relevance is primarily configuration status of the DHCP relay/server software feature rather than physical hardware: administrators verify rlDhcpRelayEnable/rlDhcpRelayExists to confirm relay is active, check rlDhcpRelayNextServerTable to ensure the configured DHCP server IPs are correct, and inspect rlDhcpRelayInterfaceTable to confirm relay is bound to the intended interfaces, which helps diagnose clients failing to obtain IP addresses. It conceptually depends on the standard DHCP protocol (RFC 2131) and DHCP relay behavior defined in RFC 3046, implemented here as a private D-Link structure with its own version marker (rsDhcpMibVersion). It is deployed on D-Link 3100-series switches/routers acting as DHCP relay agents in enterprise or SMB networks. Engineers can download the DLINK-3100-DHCP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINK-3100-DHCP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

D-Link 3100-series switch/router

Monitoring Examples

An admin checks rlDhcpRelayEnable and rlDhcpRelayExists to confirm the relay feature is turned on, then inspects rlDhcpRelayNextServerTable/rlDhcpRelayNextServerEntry to verify rlDhcpRelayNextServerIpAddr points to the correct DHCP server and that rlDhcpRelayNextServerSecThreshold (a rate-limiting/security threshold) hasn't been set so low it's dropping legitimate requests. The rlDhcpRelayInterfaceTable (rlDhcpRelayInterfaceEntry, keyed by rlDhcpRelayInterfaceIfindex) is checked to confirm relay is enabled on the VLAN/interface where DHCP clients are attached, explaining why clients on an unlisted interface aren't getting addresses. rsDhcpMibVersion identifies which revision of this DHCP feature set the device implements.

What Can Be Monitored

DHCP relay enabled/exists status
configured relay next-server IP addresses
relay server security threshold
DHCP relay interface bindings

Imported Objects

From DLINK-3100-MIB

rnd	MODULE-IDENTITY

From Q-BRIDGE-MIB

PortList

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rsDHCP	1.3.6.1.4.1.171.10.94.89.89.38			The private MIB module definition for DHCP server support in DLINK-3100 devices.
INT rsDhcpMibVersion	1.3.6.1.4.1.171.10.94.89.89.38.14	INTEGER	read-write	DHCP MIB's version, the current version is 4.
T/F rlDhcpRelayEnable	1.3.6.1.4.1.171.10.94.89.89.38.25	TruthValue	read-write	Enable or disable the use of the DHCP relay.
T/F rlDhcpRelayExists	1.3.6.1.4.1.171.10.94.89.89.38.26	TruthValue	read-only	This variable shows whether the device can function as a DHCP Relay Agent.
rlDhcpRelayNextServerTable	1.3.6.1.4.1.171.10.94.89.89.38.27		not-accessible	The DHCP Relay Next Servers configuration Table
rlDhcpRelayNextServerEntry	1.3.6.1.4.1.171.10.94.89.89.38.27.1		not-accessible	The row definition for this table. DHCP requests are relayed to the specified next server according to their threshold values.
IP rlDhcpRelayNextServerIpAddr	1.3.6.1.4.1.171.10.94.89.89.38.27.1.1	IpAddress	read-only	The IPAddress of the next configuration server. DHCP Server may act as a DHCP relay if this parameter is not equal to 0.0.0.0.
U32 rlDhcpRelayNextServerSecThreshold	1.3.6.1.4.1.171.10.94.89.89.38.27.1.2	Unsigned32	read-write	DHCP requests are relayed only if their SEC field is greater or equal to the threshold value in order to allow local DHCP Servers to answer first.
ROW rlDhcpRelayNextServerRowStatus	1.3.6.1.4.1.171.10.94.89.89.38.27.1.3	RowStatus	read-write	This variable displays the validity or invalidity of the entry. Setting it to 'destroy' has the effect of rendering it inoperative. The internal effect (row removal) is implementation dependent.
rlDhcpRelayInterfaceTable	1.3.6.1.4.1.171.10.94.89.89.38.28		not-accessible	The enabled DHCP Relay Interface Table
rlDhcpRelayInterfaceEntry	1.3.6.1.4.1.171.10.94.89.89.38.28.1		not-accessible	The row definition for this table. The user can add entry when DHCP relay is enabled on Interface.
INT rlDhcpRelayInterfaceIfindex	1.3.6.1.4.1.171.10.94.89.89.38.28.1.1	INTEGER	read-write	The Interface on which an user enables a DHCP relay
T/F rlDhcpRelayInterfaceUseGiaddr	1.3.6.1.4.1.171.10.94.89.89.38.28.1.2	TruthValue	read-write	The flag is used to set a DHCP relay interface to use GiAddr in the standard way. Default is TRUE. The field is not supported.
ROW rlDhcpRelayInterfaceRowStatus	1.3.6.1.4.1.171.10.94.89.89.38.28.1.3	RowStatus	read-write	Entry status. Can be destroy, active or createAndGo
rlDhcpRelayInterfaceListTable	1.3.6.1.4.1.171.10.94.89.89.38.29		not-accessible	This table contains one entry. The entry contains port list and vlan lists of interfaces that have configured DHCP relay
rlDhcpRelayInterfaceListEntry	1.3.6.1.4.1.171.10.94.89.89.38.29.1		not-accessible	The entry contains port list and vlan lists of interfaces that have configured DHCP relay.
INT rlDhcpRelayInterfaceListIndex	1.3.6.1.4.1.171.10.94.89.89.38.29.1.1	INTEGER	read-only	Index in the table. Already 1.
POR rlDhcpRelayInterfaceListPortList	1.3.6.1.4.1.171.10.94.89.89.38.29.1.2	PortList	read-write	DHCP relay Interface Port List.
OCT rlDhcpRelayInterfaceListVlanId1To1024	1.3.6.1.4.1.171.10.94.89.89.38.29.1.3	OCTET STRING	read-write	DHCP relay Interface VlanId List 1.
OCT rlDhcpRelayInterfaceListVlanId1025To2048	1.3.6.1.4.1.171.10.94.89.89.38.29.1.4	OCTET STRING	read-write	DHCP relay Interface VlanId List 2.
OCT rlDhcpRelayInterfaceListVlanId2049To3072	1.3.6.1.4.1.171.10.94.89.89.38.29.1.5	OCTET STRING	read-write	DHCP relay Interface VlanId List 3.
OCT rlDhcpRelayInterfaceListVlanId3073To4094	1.3.6.1.4.1.171.10.94.89.89.38.29.1.6	OCTET STRING	read-write	DHCP relay Interface VlanId List 4.
T/F rlDhcpSrvEnable	1.3.6.1.4.1.171.10.94.89.89.38.30	TruthValue	read-write	Enable or Disable the use of the DHCP Server. For a router product the default value is TRUE. For a switch product the default is FALSE.
T/F rlDhcpSrvExists	1.3.6.1.4.1.171.10.94.89.89.38.31	TruthValue	read-only	This variable shows whether the device can function as a DHCP Server.
INT rlDhcpSrvDbLocation	1.3.6.1.4.1.171.10.94.89.89.38.32	INTEGER	read-only	Describes where DHCP Server database is stored.
U32 rlDhcpSrvMaxNumOfClients	1.3.6.1.4.1.171.10.94.89.89.38.33	Unsigned32	read-only	This variable shows maximum number of clients that can be supported by DHCP Server dynamic allocation.
U32 rlDhcpSrvDbNumOfActiveEntries	1.3.6.1.4.1.171.10.94.89.89.38.34	Unsigned32	read-only	This variable shows number of active entries stored in database.
T/F rlDhcpSrvDbErase	1.3.6.1.4.1.171.10.94.89.89.38.35	TruthValue	read-write	The value is always false. Setting this variable to true causes erasing all entries in DHCP database.
T/F rlDhcpSrvProbeEnable	1.3.6.1.4.1.171.10.94.89.89.38.36	TruthValue	read-write	Enable or Disable the use of the DHCP probe before allocating an IP address.
U32 rlDhcpSrvProbeTimeout	1.3.6.1.4.1.171.10.94.89.89.38.37	Unsigned32	read-write	Indicates the peiod of time in milliseconds the DHCP probe will wait before issuing a new trial or deciding that no other device on the network has the IP address which DHCP considers allocating.
U32 rlDhcpSrvProbeRetries	1.3.6.1.4.1.171.10.94.89.89.38.38	Unsigned32	read-write	Indicates how many times DHCP will probe before deciding that no other device on the network has the IP address which DHCP considers allocating.
STR rlDhcpSrvDefaultNetworkPoolName	1.3.6.1.4.1.171.10.94.89.89.38.39	DisplayString	read-only	Contains a default network pool name. Used in case of one network pool only.
rlDhcpSrvIpAddrTable	1.3.6.1.4.1.171.10.94.89.89.38.45		not-accessible	Table of IP Addresses allocated by DHCP Server by static and dynamic allocations.
rlDhcpSrvIpAddrEntry	1.3.6.1.4.1.171.10.94.89.89.38.45.1		not-accessible	The row definition for this table. Parameters of DHCP allocated IP Addresses table.
IP rlDhcpSrvIpAddrIpAddr	1.3.6.1.4.1.171.10.94.89.89.38.45.1.1	IpAddress	read-write	The IP address that was allocated by DHCP Server.
IP rlDhcpSrvIpAddrIpNetMask	1.3.6.1.4.1.171.10.94.89.89.38.45.1.2	IpAddress	read-write	The subnet mask associated with the IP address of this entry. The value of the mask is an IP address with all the network bits set to 1 and all the hosts bits set to 0.
OCT rlDhcpSrvIpAddrIdentifier	1.3.6.1.4.1.171.10.94.89.89.38.45.1.3	OCTET STRING	read-write	Unique Identifier for client. Either physical address or DHCP Client Identifier.
INT rlDhcpSrvIpAddrIdentifierType	1.3.6.1.4.1.171.10.94.89.89.38.45.1.4	INTEGER	read-write	Identifier Type. Either physical address or DHCP Client Identifier.
STR rlDhcpSrvIpAddrClnHostName	1.3.6.1.4.1.171.10.94.89.89.38.45.1.5	SnmpAdminString	read-write	Client Host Name. DHCP Server will use it to update DNS Server. Must be unique per client.
INT rlDhcpSrvIpAddrMechanism	1.3.6.1.4.1.171.10.94.89.89.38.45.1.6	INTEGER	read-write	Mechanism of allocation IP Address by DHCP Server. The only value that can be set by user is manual.
U32 rlDhcpSrvIpAddrAgeTime	1.3.6.1.4.1.171.10.94.89.89.38.45.1.7	Unsigned32	read-only	Age time of the IP Address.
STR rlDhcpSrvIpAddrPoolName	1.3.6.1.4.1.171.10.94.89.89.38.45.1.8	DisplayString	read-write	Ip address pool name. A unique name for host pool static allocation, or network pool name in case of dynamic allocation.
STR rlDhcpSrvIpAddrConfParamsName	1.3.6.1.4.1.171.10.94.89.89.38.45.1.9	DisplayString	read-write	This variable points (serves as key) to appropriate set of parameters in the DHCP Server configuration parameters table.
ROW rlDhcpSrvIpAddrRowStatus	1.3.6.1.4.1.171.10.94.89.89.38.45.1.10	RowStatus	read-write	The row status variable, used according to row installation and removal conventions.
rlDhcpSrvDynamicTable	1.3.6.1.4.1.171.10.94.89.89.38.46		not-accessible	The DHCP Dynamic Server's configuration Table
rlDhcpSrvDynamicEntry	1.3.6.1.4.1.171.10.94.89.89.38.46.1		not-accessible	The row definition for this table. Parameters sent in as a DHCP Reply to DHCP Request with specified indices
STR rlDhcpSrvDynamicPoolName	1.3.6.1.4.1.171.10.94.89.89.38.46.1.1	DisplayString	read-write	The name of DHCP dynamic addresses pool.
IP rlDhcpSrvDynamicIpAddrFrom	1.3.6.1.4.1.171.10.94.89.89.38.46.1.2	IpAddress	read-write	The first IP address allocated in this row.
IP rlDhcpSrvDynamicIpAddrTo	1.3.6.1.4.1.171.10.94.89.89.38.46.1.3	IpAddress	read-write	The last IP address allocated in this row.
IP rlDhcpSrvDynamicIpNetMask	1.3.6.1.4.1.171.10.94.89.89.38.46.1.4	IpAddress	read-write	The subnet mask associated with the IP addresses of this entry. The value of the mask is an IP address with all the network bits set to 1 and all the hosts bits set to 0.
U32 rlDhcpSrvDynamicLeaseTime	1.3.6.1.4.1.171.10.94.89.89.38.46.1.5	Unsigned32	read-write	Maximum lease-time in seconds granted to a requesting DHCP client. For automatic allocation use 0xFFFFFFFF. To exclude addresses from allocation mechanism, set this value to 0.
T/F rlDhcpSrvDynamicProbeEnable	1.3.6.1.4.1.171.10.94.89.89.38.46.1.6	TruthValue	read-write	Enable or Disable the use of the DHCP probe before allocating the address.
U32 rlDhcpSrvDynamicTotalNumOfAddr	1.3.6.1.4.1.171.10.94.89.89.38.46.1.7	Unsigned32	read-only	Total number of addresses in space.
U32 rlDhcpSrvDynamicFreeNumOfAddr	1.3.6.1.4.1.171.10.94.89.89.38.46.1.8	Unsigned32	read-only	Free number of addresses in space.
STR rlDhcpSrvDynamicConfParamsName	1.3.6.1.4.1.171.10.94.89.89.38.46.1.9	DisplayString	read-write	This variable points (serves as key) to appropriate set of parameters in the DHCP Server configuration parameters table.
ROW rlDhcpSrvDynamicRowStatus	1.3.6.1.4.1.171.10.94.89.89.38.46.1.10	RowStatus	read-write	The row status variable, used according to row installation and removal conventions.
rlDhcpSrvConfParamsTable	1.3.6.1.4.1.171.10.94.89.89.38.47		not-accessible	The DHCP Configuration Parameters Table
rlDhcpSrvConfParamsEntry	1.3.6.1.4.1.171.10.94.89.89.38.47.1		not-accessible	The row definition for this table. Each entry corresponds to one specific parameters set.
STR rlDhcpSrvConfParamsName	1.3.6.1.4.1.171.10.94.89.89.38.47.1.1	DisplayString	read-write	This value is a unique index for the entry in the rlDhcpSrvConfParamsTable.
IP rlDhcpSrvConfParamsNextServerIp	1.3.6.1.4.1.171.10.94.89.89.38.47.1.2	IpAddress	read-write	The IP of next server for client to use in configuration process.
STR rlDhcpSrvConfParamsNextServerName	1.3.6.1.4.1.171.10.94.89.89.38.47.1.3	DisplayString	read-write	The mame of next server for client to use in configuration process.
STR rlDhcpSrvConfParamsBootfileName	1.3.6.1.4.1.171.10.94.89.89.38.47.1.4	DisplayString	read-write	Name of file for client to request from next server.
STR rlDhcpSrvConfParamsRoutersList	1.3.6.1.4.1.171.10.94.89.89.38.47.1.5	DisplayString	read-write	The value of option code 3, which defines default routers list. Each IP address is represented in dotted decimal notation format with ';' between them.
STR rlDhcpSrvConfParamsTimeSrvList	1.3.6.1.4.1.171.10.94.89.89.38.47.1.6	DisplayString	read-write	The value of option code 4, which defines time servers list. Each IP address is represented in dotted decimal notation format with ';' between them.
STR rlDhcpSrvConfParamsDnsList	1.3.6.1.4.1.171.10.94.89.89.38.47.1.7	DisplayString	read-write	The value of option code 6, which defines the list of DNSs. Each IP address is represented in dotted decimal notation format with ';' between them.
STR rlDhcpSrvConfParamsDomainName	1.3.6.1.4.1.171.10.94.89.89.38.47.1.8	SnmpAdminString	read-write	The value option code 15, which defines the domain name..
STR rlDhcpSrvConfParamsNetbiosNameList	1.3.6.1.4.1.171.10.94.89.89.38.47.1.9	DisplayString	read-write	The value option code 44, which defines the list of NETBios Name Servers. Each IP address is represented in dotted decimal notation format with ';' between them.
INT rlDhcpSrvConfParamsNetbiosNodeType	1.3.6.1.4.1.171.10.94.89.89.38.47.1.10	INTEGER	read-write	The value option code 46, which defines the NETBios node type. The option will be added only if rlDhcpSrvConfParamsNetbiosNameList is not empty.
STR rlDhcpSrvConfParamsCommunity	1.3.6.1.4.1.171.10.94.89.89.38.47.1.11	DisplayString	read-write	The value of site-specific option 128, which defines Community. The option will be added only if rlDhcpSrvConfParamsNmsIp is set.
IP rlDhcpSrvConfParamsNmsIp	1.3.6.1.4.1.171.10.94.89.89.38.47.1.12	IpAddress	read-write	The value of site-specific option 129, which defines IP of Network Manager.
STR rlDhcpSrvConfParamsOptionsList	1.3.6.1.4.1.171.10.94.89.89.38.47.1.13	DisplayString	read-write	The sequence of option segments. Each option segment is represented by a triplet . The code defines the code of each supported option. The length defines the length of each supported option. The value defines the value of the supported option. If there is a number of elements in the value field, they are divided by ','. Each element of type IP address in value field is represented in dotted decimal notation format.
ROW rlDhcpSrvConfParamsRowStatus	1.3.6.1.4.1.171.10.94.89.89.38.47.1.14	RowStatus	read-write	The row status variable, used according to row installation and removal conventions.

RFC description

D-Link 3100 DHCP server MIB for network address management. Configures DHCP relay functionality, next-server thresholds, and DHCP service options.

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Download DLINK-3100-DHCP-MIB

What Is DLINK-3100-DHCP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description