NETGEAR-DHCPSERVER-PRIVATE-MIB

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Organization: Netgear

Last Updated: 2008-03-17

Description: NETGEAR-DHCPSERVER-PRIVATE-MIB module

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is NETGEAR-DHCPSERVER-PRIVATE-MIB?

NETGEAR-DHCPSERVER-PRIVATE-MIB is a Netgear proprietary MIB (built on NETGEAR-REF-MIB) reporting the switch's built-in DHCP server statistics and pool configuration. Its objects cover admin mode, ping-packet count, automatic/expired binding counts, malformed-message count, per-message-type (DISCOVER/REQUEST/DECLINE/RELEASE/INFORM) received counts and (OFFER/ACK/NAK) sent counts, a clear-statistics action, BOOTP-automatic flag, a pool-name-create action, and a pool-config table (index, name, default router, DNS server, lease time, type, NetBIOS name server). As a configuration/performance MIB it lets an administrator confirm DHCP pool configuration and watch lease-message volume on a Netgear switch's built-in DHCP server. It is deployed on Netgear switching equipment (DHCP server). Engineers can download the NETGEAR-DHCPSERVER-PRIVATE-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NETGEAR-DHCPSERVER-PRIVATE-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

Netgear switching equipment (DHCP server)

Monitoring Examples

An administrator checks agentDhcpServerACKMessagesSent and agentDhcpServerDECLINEMessagesReceived to watch DHCP lease activity on a Netgear switch's built-in DHCP server.

What Can Be Monitored

DHCP pool configuration and lease-message volume

Imported Objects

From Netgear-MIB

ng700smartswitch

OBJECT-IDENTITY

From RFC1213-MIB

DisplayString
PhysAddress

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

MacAddress
RowPointer
RowStatus
StorageType
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using agentDhcpServerAutomaticBindingsNos OID:

Select a Netgear switching equipment (built-in DHCP server) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type agentDhcpServerAutomaticBindingsNos into the Find box to locate it in the OID tree, then select it and click OK. The no. of IP addresses that have been assigned automatically. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
agentDHCPServerPrivate	1.3.6.1.4.1.4526.11.12			The Netgear Private MIB for DHCP Server
agentDhcpServerGroup	1.3.6.1.4.1.4526.11.12.1
INT agentDhcpServerAdminMode	1.3.6.1.4.1.4526.11.12.1.1	INTEGER	read-write	Admin-mode of the DHCP Server.
INT agentDhcpServerPingPktNos	1.3.6.1.4.1.4526.11.12.1.2	INTEGER	read-write	The no. of packets a DHCP Server sends to a pool address as part of a ping operation.Setting the value of ping-packets to zero turns off DHCP Server ping operation .
C32 agentDhcpServerAutomaticBindingsNosEx	1.3.6.1.4.1.4526.11.12.1.3	Counter32	read-only	The no. of IP addresses that have been assigned automatically.
C32 agentDhcpServerExpiredBindingsNos	1.3.6.1.4.1.4526.11.12.1.4	Counter32	read-only	The no. of expired leases.
C32 agentDhcpServerMalformedMessagesReceived	1.3.6.1.4.1.4526.11.12.1.5	Counter32	read-only	The no. of malformed(truncated or corrupt) messages that have been received by the DHCP server.
C32 agentDhcpServerDISCOVERMessagesReceived	1.3.6.1.4.1.4526.11.12.1.6	Counter32	read-only	The no. of DHCP messages of type DHCPDISCOVER that have been received by the DHCP server.
C32 agentDhcpServerREQUESTMessagesReceived	1.3.6.1.4.1.4526.11.12.1.7	Counter32	read-only	The no. of DHCP messages of type DHCPREQUEST that have been received by the DHCP server.
C32 agentDhcpServerDECLINEMessagesReceived	1.3.6.1.4.1.4526.11.12.1.8	Counter32	read-only	The no. of DHCP messages of type DHCPDECLINE that have been received by the DHCP server.
C32 agentDhcpServerRELEASEMessagesReceived	1.3.6.1.4.1.4526.11.12.1.9	Counter32	read-only	The no. of DHCP messages of type DHCPRELEASE that have been received by the DHCP server.
C32 agentDhcpServerINFORMMessagesReceived	1.3.6.1.4.1.4526.11.12.1.10	Counter32	read-only	The no. of DHCP messages of type DHCPINFORM that have been received by the DHCP server.
C32 agentDhcpServerOFFERMessagesSent	1.3.6.1.4.1.4526.11.12.1.11	Counter32	read-only	The no. of DHCP messages of type DHCPOFFER that have been sent by the DHCP server.
C32 agentDhcpServerACKMessagesSent	1.3.6.1.4.1.4526.11.12.1.12	Counter32	read-only	The no. of DHCP messages of type DHCPACK that have been sent by the DHCP server.
C32 agentDhcpServerNAKMessagesSent	1.3.6.1.4.1.4526.11.12.1.13	Counter32	read-only	The no. of DHCP messages of type DHCPNAK that have been sent by the DHCP server.
INT agentDhcpServerClearStatistics	1.3.6.1.4.1.4526.11.12.1.14	INTEGER	read-write	Clears the DHCP server statistics.
INT agentDhcpServerBootpAutomatic	1.3.6.1.4.1.4526.11.12.1.15	INTEGER	read-write	Used to enable or disable autmatic address allocation to bootp clients from dynamic address pools.
agentDhcpServerPoolConfigGroup	1.3.6.1.4.1.4526.11.12.2
STR agentDhcpServerPoolNameCreate	1.3.6.1.4.1.4526.11.12.2.1	DisplayString	read-write	A pool is created by applying write operation on this MIB object and providing a new pool-name. Get operation on this MIB object returns a null-value, as for the purpose of viewing the pool name, the user should perform the traversal of agentDhcpServerPoolConfigTable. For this reason the get operation on object agentDhcpServerPoolNameCreate becomes insignificant.
agentDhcpServerPoolConfigTable	1.3.6.1.4.1.4526.11.12.2.2		not-accessible	A table of the DHCP Server Pool configuration entries.
agentDhcpServerPoolConfigEntry	1.3.6.1.4.1.4526.11.12.2.2.1		not-accessible	Represents entry for a Dhcp server pool.
U32 agentDhcpServerPoolIndex	1.3.6.1.4.1.4526.11.12.2.2.1.1	Unsigned32	read-only	The Pool Index, which 'll be used as index for the PoolConfig Table.
STR agentDhcpServerPoolName	1.3.6.1.4.1.4526.11.12.2.2.1.2	DisplayString	read-only	The name of the DHCP Address pool. This value cannot be modified
STR agentDhcpServerPoolDefRouter	1.3.6.1.4.1.4526.11.12.2.2.1.3	DisplayString	read-write	This specifies the default-router list(each default-router is separated by comma and the list is terminated by semi-colon) for a DHCP client, an example would be 10.10.1.1,192.168.36.1,157.227.44.1;(no spaces in between).User should enter a 'null' or 'NULL' string to remove current default-router list.
STR agentDhcpServerPoolDNSServer	1.3.6.1.4.1.4526.11.12.2.2.1.4	DisplayString	read-write	This specifies the DNS IP servers(each DNS IP server is separated by comma and the list is terminated by semi-colon) for a DHCP client, an example would be 10.10.1.1,192.168.36.1,157.227.44.1;(no spaces in between).User should enter a 'null' or 'NULL' string to remove current default-router list.
I32 agentDhcpServerPoolLeaseTime	1.3.6.1.4.1.4526.11.12.2.2.1.5	Integer32	read-write	This specifies the duration of the lease(in minutes) for an IP address that is assigened from a DHCP server to a DHCP client. For infinite leases, lease-time value will be set to 86400.
INT agentDhcpServerPoolType	1.3.6.1.4.1.4526.11.12.2.2.1.6	INTEGER	read-only	This specifies the type of the binding that is associated with this pool.
STR agentDhcpServerPoolNetbiosNameServer	1.3.6.1.4.1.4526.11.12.2.2.1.7	DisplayString	read-write	This specifies the IP address-list of Net BIOS name-servers that are available to DHCP clients (each IP address in this list is separated by comma and the list is terminated by semi-colon), an example would be 10.10.1.1,192.168.36.1,157.227.44.1;(no spaces in between).User should enter a 'null' or 'NULL' string to remove current Net BIOS name-server list.
INT agentDhcpServerPoolNetbiosNodeType	1.3.6.1.4.1.4526.11.12.2.2.1.8	INTEGER	read-write	This specifies the NetBIOS node-type for DHCP clients. 'none' is shown if node-type is not set to any of the four values.
IP agentDhcpServerPoolNextServer	1.3.6.1.4.1.4526.11.12.2.2.1.9	IpAddress	read-write	This configures the next server in the boot-process of a DHCP clients.User should enter zero(0.0.0.0) to remove the current Next-server address
STR agentDhcpServerPoolDomainName	1.3.6.1.4.1.4526.11.12.2.2.1.10	DisplayString	read-write	This specifies the domain-name for a DHCP client. User should enter a 'null' or 'NULL' string to remove specified domain-name.
STR agentDhcpServerPoolBootfile	1.3.6.1.4.1.4526.11.12.2.2.1.11	DisplayString	read-write	This specifies the name of the default boot image for a DHCP client.User should enter a 'null' or 'NULL' string to remove specified bootfile name.
ROW agentDhcpServerPoolRowStatus	1.3.6.1.4.1.4526.11.12.2.2.1.12	RowStatus	read-write	The row status variable is used according to installation and removal conventions for conceptual rows. When a pool is created by applying write operation on 'agentDhcpServerPoolCreateName',row-status becomes 'active'. If row-status for a poolEntry is set to 'destroy', the corresponding pool gets deleted.
agentDhcpServerPoolAllocationTable	1.3.6.1.4.1.4526.11.12.2.3		not-accessible	A table of the DHCP Server's pool entries, showing the binding(dynamic/manual) specific parameters.
agentDhcpServerPoolAllocationEntry	1.3.6.1.4.1.4526.11.12.2.3.1		not-accessible	Represents entry for a Dhcp server's allocation pool.
STR agentDhcpServerPoolAllocationName	1.3.6.1.4.1.4526.11.12.2.3.1.1	DisplayString	read-only	This specifies name of the DHCP Address pool having dynamic binding. This value is same as agentDhcpServerPoolName of the agentDhcpServerPoolConfigTable.
IP agentDhcpServerDynamicPoolIpAddress	1.3.6.1.4.1.4526.11.12.2.3.1.2	IpAddress	read-write	The IP address of the DHCP Address pool. The IP address must be set before setting the IP Mask or IP Prefix Length. After setting IP address, network -mask, or IP Prefix length must be set in order to change the pool type to dynamic. This value shows 0.0.0.0, if the binding type is 'un-allocated',or,'manual'.
IP agentDhcpServerDynamicPoolIpMask	1.3.6.1.4.1.4526.11.12.2.3.1.3	IpAddress	read-write	The bit-combination that renders which portion of the address of the DHCP address pool refers to the network or subnet and which part refers to the host.The IP address must have been set before. This value shows 0.0.0.0, if the binding type is 'un-allocated',or,'manual'.
U32 agentDhcpServerDynamicPoolIpPrefixLength	1.3.6.1.4.1.4526.11.12.2.3.1.4	Unsigned32	read-write	This specifies the no. of bits that comprise the address-prefix. The prefix is an alternative way of specifying the network-mask of the client.The IP address must have been set before. This value shows 0, if the binding type is 'un-allocated',or,'mnaual'.
INT agentDhcpServerPoolAllocationType	1.3.6.1.4.1.4526.11.12.2.3.1.5	INTEGER	read-only	This specifies the type of the binding that is associated with this pool.
STR agentDhcpServerManualPoolClientIdentifier	1.3.6.1.4.1.4526.11.12.2.3.1.6	DisplayString	read-write	It specifies the unique identifier (in colon separated hexadecimal format) of a DHCP client. It is valid for manual bindings only. It displays 'unconfigured',if the binding type is 'un-allocated',or,'dynamic'. To set this object, input should be 7 octets long with the hardware type in the first octet.
STR agentDhcpServerManualPoolClientName	1.3.6.1.4.1.4526.11.12.2.3.1.7	DisplayString	read-write	It specifies the name of a DHCP client. Client name should't include domain-name. It displays 'unconfigured',if the binding type is 'un-allocated',or,'dynamic'.
STR agentDhcpServerManualPoolClientHWAddr	1.3.6.1.4.1.4526.11.12.2.3.1.8	DisplayString	read-write	It specifies the hardware-address of a DHCP client. It is valid for manual bindings only. It displays 'unconfigured',if the binding type is 'un-allocated',or,'dynamic'. After hardware-address, hardware-type will be configured.
INT agentDhcpServerManualPoolClientHWType	1.3.6.1.4.1.4526.11.12.2.3.1.9	INTEGER	read-write	It specifies the hardware-type of a DHCP client. It is valid for manual bindings only. It displays 'unconfigured',if the binding type is 'un-allocated',or,'dynamic'. Before this, hardware-address must be configured.
IP agentDhcpServerManualPoolIpAddress	1.3.6.1.4.1.4526.11.12.2.3.1.10	IpAddress	read-write	The IP address of the DHCP Address pool for manual binding. The IP address must be set before setting the IP Mask or IP Prefix Length.After setting IP address, network -mask, or IP Prefix length must be set in order to change the pool type to dynamic. This value shows 0.0.0.0, if the binding type is 'un-allocated',or,'dynamic'.
IP agentDhcpServerManualPoolIpMask	1.3.6.1.4.1.4526.11.12.2.3.1.11	IpAddress	read-write	The bit-combination that renders which portion of the address of the DHCP address pool for a manual binding refers to the network or subnet and which part refers to the host. The IP address must have been set before. This value shows 0.0.0.0, if the binding type is 'un-allocated',or,'dynamic'.
U32 agentDhcpServerManualPoolIpPrefixLength	1.3.6.1.4.1.4526.11.12.2.3.1.12	Unsigned32	read-write	This specifies the no. of bits that comprise the address-prefix. The prefix is an alternative way of specifying the network-mask of the client.The IP address must have been set before. This value shows 0, if the binding type is 'un-allocated',or,'dynamic'.
STR agentDhcpServerExcludedAddressRangeCreate	1.3.6.1.4.1.4526.11.12.2.4	DisplayString	read-write	It sets the IP address-ranges(from low to high) that a DHCP server should not assign to DHCP clients. Each time this MIB object is set successfully, one excluded range of IP address will be set. It is given in format - start and end IP address separated by '-' and terminated by ';'. One example would be - 192.168.36.1-200.1.1.1; . This sets one excluded range of IP address,which starts at 192.168.36.1 and ends at 200.1.1.1. If only start IP address is given, end IP address is assumed to be equal to the start IP address. Get operation on this MIB object returns a null-value, as for the purpose of viewing the exclude-address ranges, the user should perform the traversal of agentDhcpServerExcludedAddressRangeTable. For this reason the get operation on object agentDhcpServerExcludedAddressRangeCreate becomes insignificant.
agentDhcpServerExcludedAddressRangeTable	1.3.6.1.4.1.4526.11.12.2.5		not-accessible	A table of the DHCP Server Pool configuration entries.
agentDhcpServerExcludedAddressRangeEntry	1.3.6.1.4.1.4526.11.12.2.5.1		not-accessible	Represents entry for a Dhcp server excluded address range table.
U32 agentDhcpServerExcludedRangeIndex	1.3.6.1.4.1.4526.11.12.2.5.1.1	Unsigned32	read-only	This specifies the index of the excluded IP address-range table.
IP agentDhcpServerExcludedStartIpAddress	1.3.6.1.4.1.4526.11.12.2.5.1.2	IpAddress	read-only	This specifies the starting IP address of the excluded address-range.
IP agentDhcpServerExcludedEndIpAddress	1.3.6.1.4.1.4526.11.12.2.5.1.3	IpAddress	read-only	This specifies the ending IP address of the excluded address-range.
ROW agentDhcpServerExcludedAddressRangeStatus	1.3.6.1.4.1.4526.11.12.2.5.1.4	RowStatus	read-write	This specifies the row-status of the excluded address-range. Implemented values are - active(1) and destroy(6). For a valid range, the row-satus will return active(1). When it is set to destroy(6), the corresponding address-range is deleted.
STR agentDhcpServerPoolOptionCreate	1.3.6.1.4.1.4526.11.12.2.6	DisplayString	read-write	This sets the option for an existing DHCP Server pool. Here, it is required to enter the pool-index, for which option is to be set and the value of the DHCP option code in string-format : pool-index and option code separated by '-' and terminated by ';', one example would be -> 1-19; , 1 is the pool-index and 19 is the option code.
agentDhcpServerPoolOptionTable	1.3.6.1.4.1.4526.11.12.2.7		not-accessible	A table for configuring DHCP Server options.
agentDhcpServerPoolOptionEntry	1.3.6.1.4.1.4526.11.12.2.7.1		not-accessible	Represents entry for a Dhcp server option table.
U32 agentDhcpServerPoolOptionIndex	1.3.6.1.4.1.4526.11.12.2.7.1.1	Unsigned32	read-only	The Pool Index alongwith option-code, acts as index for the DHCP Server Option table.
U32 agentDhcpServerPoolOptionCode	1.3.6.1.4.1.4526.11.12.2.7.1.2	Unsigned32	read-write	This specifies the DHCP option code. This alongwith pool-index acts as the index of the DHCP Server Option table.
STR agentDhcpServerOptionPoolName	1.3.6.1.4.1.4526.11.12.2.7.1.3	DisplayString	read-only	The name of the DHCP Address pool. This value cannot be modified
STR agentDhcpServerPoolOptionAsciiData	1.3.6.1.4.1.4526.11.12.2.7.1.4	DisplayString	read-write	This specifies an NVT ASCII character string. ASCII character strings that contain white space must be delimited by quotation marks. If an ascii optiondata is entered again, it gets concatenated with the previous ascii data.
STR agentDhcpServerPoolOptionHexData	1.3.6.1.4.1.4526.11.12.2.7.1.5	DisplayString	read-write	This specifies semi-colon separated hexadecimal data. Two hexadecimal digits in hexadecimal character string represents one byte . Hexadecimal strings can be entered in the following formats : 1) continuous hexadecimal digits like -- 0123456789abcdef 2) hexadecimal digits separated by space ' ' -- 01 23 45 67 de 0f 3) Two hexadecimal digits separated by delimeter ':' -- 01:02:a0 de:0f 78:5e 4) Four hexadecimal digits separated by delimeter '.' -- 01ab.c0de.7865 If a Hex optiondata is entered again, it gets concatenated with the previous Hex data.
STR agentDhcpServerPoolOptionIpAddressData	1.3.6.1.4.1.4526.11.12.2.7.1.6	DisplayString	read-write	This specifies the IP-address list(each IP-address is separated by comma and the list is terminated by semi-colon) for a DHCP client, an example would be 10.10.1.1,192.168.36.1,157.227.44.1;(no spaces in between). If a IP option is entered again, it gets concatenated with the previous IP data. Maximum no. of IP addresses that can be entered at one time is 8.
ROW agentDhcpServerPoolOptionStatus	1.3.6.1.4.1.4526.11.12.2.7.1.7	RowStatus	read-write	This specifies the row-status of the DHCP Server Pool option.
agentDhcpServerLeaseGroup	1.3.6.1.4.1.4526.11.12.3
INT agentDhcpServerLeaseClearAllBindings	1.3.6.1.4.1.4526.11.12.3.1	INTEGER	read-write	Clears All the DHCP server bindings.
agentDhcpServerLeaseTable	1.3.6.1.4.1.4526.11.12.3.2		not-accessible	A table of the DHCP Server's Lease entries.
agentDhcpServerLeaseEntry	1.3.6.1.4.1.4526.11.12.3.2.1		not-accessible	Represents entry for a Dhcp server's leases.
IP agentDhcpServerLeaseIPAddress	1.3.6.1.4.1.4526.11.12.3.2.1.1	IpAddress	read-only	This specifies the IP address leased to the client.
IP agentDhcpServerLeaseIPMask	1.3.6.1.4.1.4526.11.12.3.2.1.2	IpAddress	read-only	This specifies the IP mask of the address leased to the client.
MAC agentDhcpServerLeaseHWAddress	1.3.6.1.4.1.4526.11.12.3.2.1.3	MacAddress	read-only	This specifies the hardware address of the client.
TIK agentDhcpServerLeaseRemainingTime	1.3.6.1.4.1.4526.11.12.3.2.1.4	TimeTicks	read-only	This specifies the period for which the lease is valid. It is displayed in days, hours, minutes, and seconds.
INT agentDhcpServerLeaseType	1.3.6.1.4.1.4526.11.12.3.2.1.5	INTEGER	read-only	This specifies the type of address lease as Automatic or Manual.
ROW agentDhcpServerLeaseStatus	1.3.6.1.4.1.4526.11.12.3.2.1.6	RowStatus	read-write	This specifies the row-status of the address-lease. Implemented values are - active(1) and destroy(6). For a valid range, the row-satus will return active(1). When it is set to destroy(6), the corresponding address-lease is cleared.
agentDhcpServerAddressConflictGroup	1.3.6.1.4.1.4526.11.12.4
INT agentDhcpServerClearAllAddressConflicts	1.3.6.1.4.1.4526.11.12.4.1	INTEGER	read-write	Clears all the address-conflicts found by DHCP server,when set to enable.
INT agentDhcpServerAddressConflictLogging	1.3.6.1.4.1.4526.11.12.4.2	INTEGER	read-write	It is used to enable, or disables the logging of address-conflicts on a DHCP Server.
agentDhcpServerAddressConflictTable	1.3.6.1.4.1.4526.11.12.4.3		not-accessible	A table of the conflicting-address entries.
agentDhcpServerAddressConflictEntry	1.3.6.1.4.1.4526.11.12.4.3.1		not-accessible	Represents a conflicting-address entry.
IP agentDhcpServerAddressConflictIP	1.3.6.1.4.1.4526.11.12.4.3.1.1	IpAddress	read-only	This specifies the conflicting IP address assigned to the client by DHCP server.
INT agentDhcpServerAddressConflictDetectionType	1.3.6.1.4.1.4526.11.12.4.3.1.2	INTEGER	read-only	This specifies the address-conflict detection-method.
TIK agentDhcpServerAddressConflictDetectionTime	1.3.6.1.4.1.4526.11.12.4.3.1.3	TimeTicks	read-only	This specifies the sysUpTime at which the address-conflict was detected.
ROW agentDhcpServerAddressConflictStatus	1.3.6.1.4.1.4526.11.12.4.3.1.4	RowStatus	read-write	This specifies the row-status of the conflicting-address entry. Implemented values are - active(1) and destroy(6). For a valid range, the row-satus will return active(1). When it is set to destroy(6), the corresponding conflicting-address entry is cleared.

RFC description

Netgear DHCP server configuration with address pool, bindings, and ping operations.

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