HH3C-DHCPRELAY-MIB

All MIBs › HH3C-DHCPRELAY-MIB

Organization: Hangzhou H3C Tech. Co., Ltd.

Last Updated: 2005-06-08

Category: Protocol: DHCP, Vendor: H3C/HH3C

Description: Manages DHCP relay agent functions on H3C switches and routers, including per-interface relay targets.

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What Is HH3C-DHCPRELAY-MIB?

HH3C-DHCPRELAY-MIB manages the DHCP relay agent function on H3C switches and routers, which forwards DHCP client requests from local subnets to a remote DHCP server across Layer 3 boundaries. Although no sample objects were captured for this batch and the module description is terse, MIBs of this kind typically expose per-interface relay-server address configuration and, where implemented, counters for relayed/forwarded DHCP packets. Its monitoring value would center on configuration correctness, which server addresses are configured per interface, and, if counters are present, on detecting a stall in DHCP relay traffic that could indicate address-assignment failures for downstream clients; this is a software/service-status concern for the relay function rather than physical hardware. It is an H3C-specific configuration MIB layered on top of the standard DHCP relay mechanism and does not itself redefine the base DHCP protocol. It is deployed on H3C access/aggregation routers and Layer 3 switches acting as DHCP relay agents between client VLANs and centralized DHCP servers, and the HH3C-DHCPRELAY-MIB download can be loaded into a MIB browser for reference.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-DHCPRELAY-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

H3C switches
H3C routers

Monitoring Examples

No sample objects were provided for this module in the source batch, so specific object/table names cannot be grounded here; based on the module's stated purpose, it would be expected to expose a per-interface table of configured DHCP relay/server addresses. An administrator would poll this table to confirm the correct relay-server address is bound to each client-facing interface, and an unexpected or missing entry would explain why DHCP clients on that interface are failing to obtain addresses.

What Can Be Monitored

configured DHCP relay server address per interface
DHCP relay agent enable/disable status

Imported Objects

From HH3C-OID-MIB

hh3cCommon

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
hh3cDhcpRelay	1.3.6.1.4.1.25506.2.58			H3C DHCPR MIB
hh3cDHCPRMibObject	1.3.6.1.4.1.25506.2.58.1
hh3cDHCPRIfSelectTable	1.3.6.1.4.1.25506.2.58.1.1		not-accessible	A table for configuring relay mode for interfaces.
hh3cDHCPRIfSelectEntry	1.3.6.1.4.1.25506.2.58.1.1.1		not-accessible	An entry for configuring relay mode for an interface.
INT hh3cDHCPRIfSelectRelayMode	1.3.6.1.4.1.25506.2.58.1.1.1.1	INTEGER	read-write	If the value is on, the DHCP relay function would be enabled on this interface.
hh3cDHCPRIpToGroupTable	1.3.6.1.4.1.25506.2.58.1.2		not-accessible	A table for configuring ip addresses for DHCP server groups.
hh3cDHCPRIpToGroupEntry	1.3.6.1.4.1.25506.2.58.1.2.1		not-accessible	An entry for configuring ip addresses for a DHCP server group.
I32 hh3cDHCPRIpToGroupGroupId	1.3.6.1.4.1.25506.2.58.1.2.1.1	Integer32	not-accessible	Group identifier of DHCP server group.
IPt hh3cDHCPRIpToGroupServerIpType	1.3.6.1.4.1.25506.2.58.1.2.1.2	InetAddressType	not-accessible	Ip address type of DHCP server.
IP hh3cDHCPRIpToGroupServerIp	1.3.6.1.4.1.25506.2.58.1.2.1.3	InetAddress	not-accessible	Ip address of DHCP server.
ROW hh3cDHCPRIpToGroupRowStatus	1.3.6.1.4.1.25506.2.58.1.2.1.4	RowStatus	read-create	Operation status of this table entry. Three actions are used: active, createAndGo, destroy.
hh3cDHCPRIfToGroupTable	1.3.6.1.4.1.25506.2.58.1.3		not-accessible	A table for configuring DHCP server groups for interfaces.
hh3cDHCPRIfToGroupEntry	1.3.6.1.4.1.25506.2.58.1.3.1		not-accessible	An entry for configuring DHCP server group for an interface.
I32 hh3cDHCPRIfToGroupGroupId	1.3.6.1.4.1.25506.2.58.1.3.1.1	Integer32	read-write	The DHCP server group for this interface.
ROW hh3cDHCPRIfToGroupRowStatus	1.3.6.1.4.1.25506.2.58.1.3.1.2	RowStatus	read-create	Operation status of this table entry. Three actions are used: active, createAndGo, destroy
hh3cDHCPRAddrCheckTable	1.3.6.1.4.1.25506.2.58.1.4		not-accessible	A table containing the states of dhcp security address check switchs for interfaces.
hh3cDHCPRAddrCheckEntry	1.3.6.1.4.1.25506.2.58.1.4.1		not-accessible	An entry containing the state of dhcp security address check switch for an interface.
INT hh3cDHCPRAddrCheckSwitch	1.3.6.1.4.1.25506.2.58.1.4.1.1	INTEGER	read-write	The state of dhcp security address check switch for this interface. It has two defined values: enabled and disabled. If the value is enabled, the address check function would be enabled. The default value is disabled.
hh3cDHCPRSecurityTable	1.3.6.1.4.1.25506.2.58.1.5		not-accessible	A table containing the information of DHCP security.
hh3cDHCPRSecurityEntry	1.3.6.1.4.1.25506.2.58.1.5.1		not-accessible	An entry containing the information of DHCP security.
IPt hh3cDHCPRSecurityClientIpAddrType	1.3.6.1.4.1.25506.2.58.1.5.1.1	InetAddressType	not-accessible	DHCP client's net ip address type
IP hh3cDHCPRSecurityClientIpAddr	1.3.6.1.4.1.25506.2.58.1.5.1.2	InetAddress	not-accessible	DHCP client's net ip address
MAC hh3cDHCPRSecurityClientMacAddr	1.3.6.1.4.1.25506.2.58.1.5.1.3	MacAddress	read-write	DHCP client's mac address
INT hh3cDHCPRSecurityClientProperty	1.3.6.1.4.1.25506.2.58.1.5.1.4	INTEGER	read-write	Property of client address
ROW hh3cDHCPRSecurityClientRowStatus	1.3.6.1.4.1.25506.2.58.1.5.1.5	RowStatus	read-create	Operation status of this table entry. Three actions are used: active, createAndGo, destroy
hh3cDHCPRStatisticsGroup	1.3.6.1.4.1.25506.2.58.1.6
U32 hh3cDHCPRRxClientPktNum	1.3.6.1.4.1.25506.2.58.1.6.1	Unsigned32	read-only	The total number of the packets received from DHCP clients by DHCP relay.
U32 hh3cDHCPRTxClientPktNum	1.3.6.1.4.1.25506.2.58.1.6.2	Unsigned32	read-only	The total number of the brodcast packets transmitted to DHCP clients by DHCP relay.
U32 hh3cDHCPRRxServerPktNum	1.3.6.1.4.1.25506.2.58.1.6.3	Unsigned32	read-only	The total number of the packets received from DHCP Servers by DHCP relay.
U32 hh3cDHCPRTxServerPktNum	1.3.6.1.4.1.25506.2.58.1.6.4	Unsigned32	read-only	The total number of the packets transmitted to DHCP Servers by DHCP relay.
U32 hh3cDHCPRDiscoverPktNum	1.3.6.1.4.1.25506.2.58.1.6.5	Unsigned32	read-only	The total number of the DHCP Discover packets handled by DHCP relay.
U32 hh3cDHCPRRequestPktNum	1.3.6.1.4.1.25506.2.58.1.6.6	Unsigned32	read-only	The total number of the DHCP Request packets handled by DHCP relay.
U32 hh3cDHCPRDeclinePktNum	1.3.6.1.4.1.25506.2.58.1.6.7	Unsigned32	read-only	The total number of the DHCP Decline packets handled by DHCP relay.
U32 hh3cDHCPRReleasePktNum	1.3.6.1.4.1.25506.2.58.1.6.8	Unsigned32	read-only	The total number of the DHCP Release packets handled by DHCP relay.
U32 hh3cDHCPRInformPktNum	1.3.6.1.4.1.25506.2.58.1.6.9	Unsigned32	read-only	The total number of the DHCP Inform packets handled by DHCP relay.
U32 hh3cDHCPROfferPktNum	1.3.6.1.4.1.25506.2.58.1.6.10	Unsigned32	read-only	The total number of the DHCP Offer packets handled by DHCP relay.
U32 hh3cDHCPRAckPktNum	1.3.6.1.4.1.25506.2.58.1.6.11	Unsigned32	read-only	The total number of the DHCP Ack packets handled by DHCP relay.
U32 hh3cDHCPRNakPktNum	1.3.6.1.4.1.25506.2.58.1.6.12	Unsigned32	read-only	The total number of the DHCP Nak packets handled by DHCP relay.
T/F hh3cDHCPRStatisticsReset	1.3.6.1.4.1.25506.2.58.1.6.13	TruthValue	read-write	This node only supports set operation. If the value is true,it will clear all of the packet statistics.
hh3cDHCPRCycleGroup	1.3.6.1.4.1.25506.2.58.1.7
INT hh3cDHCPRCycleStatus	1.3.6.1.4.1.25506.2.58.1.7.1	INTEGER	read-write	If the value is on, the cycle function would be enabled.
hh3cDHCPRConfigOption82Group	1.3.6.1.4.1.25506.2.58.1.8
INT hh3cDHCPROption82Switch	1.3.6.1.4.1.25506.2.58.1.8.1	INTEGER	read-write	If the value is enabled, DHCP relay supporting option 82 function would be enabled.
INT hh3cDHCPROption82HandleStrategy	1.3.6.1.4.1.25506.2.58.1.8.2	INTEGER	read-write	The strategies of DHCP relay handling option 82. 'drop' indicates DHCP relay discarding the request packet including option 82. 'keep' indicates DHCP relay accepting the request packet without any change of the option 82. 'replace' indicates DHCP relay accepting the request packet on condition that it generates a new option 82 to replace the original one.
hh3cDHCPRConfigOption82IfTable	1.3.6.1.4.1.25506.2.58.1.8.3		not-accessible	A table containing the information of DHCP option 82. This table depends on hh3cDHCPRIfToGroupTable. An entry of this table will be created when an entry of hh3cDHCPRIfToGroupTable is created.
hh3cDHCPRConfigOption82IfEntry	1.3.6.1.4.1.25506.2.58.1.8.3.1		not-accessible	An entry containing the information of DHCP option 82.
INT hh3cDHCPROption82IfSwitch	1.3.6.1.4.1.25506.2.58.1.8.3.1.1	INTEGER	read-write	If DHCP relay supports option 82 functions, the value is 'enabled'. If DHCP relay does not support option 82 functions, the value is 'disabled'.
INT hh3cDHCPROption82IfStrategy	1.3.6.1.4.1.25506.2.58.1.8.3.1.2	INTEGER	read-write	The strategies of DHCP relay handling option 82. 'drop' indicates DHCP relay discarding the request packet including option 82. 'keep' indicates DHCP relay accepting the request packet without any change of the option 82. 'replace' indicates DHCP relay accepting the request packet on condition that it generates a new option 82 to replace the original one.
INT hh3cDHCPROption82IfFormat	1.3.6.1.4.1.25506.2.58.1.8.3.1.3	INTEGER	read-write	The format of DHCP relay option 82. 'normal' is the standard format. 'verbose' is the detailed format.
INT hh3cDHCPROption82IfNodeType	1.3.6.1.4.1.25506.2.58.1.8.3.1.4	INTEGER	read-write	Property of DHCP relay option 82 verbose format. The value can be set by user only when the value of hh3cDHCPROption82IfFormat is set with 'verbose'. If the value of hh3cDHCPROption82IfFormat is 'normal', the value is automatically set with 'invalid'. the value can not be set with 'invalid' by user. 'mac' indicates the option 82 verbose format is filled in with the mac of DHCP relay input interface. If the value of hh3cDHCPROption82IfFormat is set with 'verbose', the value is automatically set with 'mac'. 'sysname' indicates the option 82 verbose format is filled in with the name of the DHCP relay. 'userdefine' indicates the option 82 verbose format is filled in with the string defined by user. If the value is set with 'userdefine', the value of hh3cDHCPROption82IfUsrDefString must be set simultaneously.
OCT hh3cDHCPROption82IfUsrDefString	1.3.6.1.4.1.25506.2.58.1.8.3.1.5	OCTET STRING	read-write	The string defined by user to fill in the option 82 verbose format. If the value of hh3cDHCPROption82IfFormat is 'normal', or the value of hh3cDHCPROption82IfNodeType is 'mac' or 'sysname', it is set with a null string automatically and can not be modified by user. It must be set with a non-zero length string when the value of hh3cDHCPROption82IfNodeType is set with 'userdefine'.

RFC description

Manages DHCP relay agent configuration and operation including relay mode, option 82 handling, and interface management.

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Download HH3C-DHCPRELAY-MIB

What Is HH3C-DHCPRELAY-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description