TPLINK-DHCPRELAY-MIB

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Organization: TPLINK

Last Updated: 2012-12-17

Category: DHCP Management

Description: Manages TP-Link switch DHCP relay agent configuration and server address assignments.

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What Is TPLINK-DHCPRELAY-MIB?

TPLINK-DHCPRELAY-MIB is a TP-Link proprietary module for configuring the DHCP relay agent function on their managed switches, forwarding DHCP client broadcast requests to remote DHCP servers across routed network segments. It exposes configuration objects for enabling DHCP relay and specifying the DHCP server address(es) to which requests should be forwarded, along with related per-interface or per-VLAN relay settings. Its monitoring purpose is configuration/service status oriented: confirming that DHCP relay is enabled and correctly pointed at the intended server so that clients on remote subnets can successfully obtain IP addresses, which is a basic network service availability check rather than a hardware health metric. It functions alongside the switch's IP/VLAN interface configuration for determining relay scope. It is deployed on TP-Link managed switches acting as Layer 3 boundary devices where centralizing DHCP service across multiple VLANs or subnets is required. Network engineers evaluating or troubleshooting this functionality can download the TPLINK-DHCPRELAY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TPLINK-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

TP-Link managed switch

Monitoring Examples

No sample object or table names were provided in the source for this module, so a concrete polling example naming specific objects cannot be honestly constructed here; in practice an administrator would be expected to poll the DHCP relay enable state and configured relay server address objects to confirm relay is active and correctly targeted, flagging a misconfigured or unreachable server address as the likely cause of clients failing to obtain leases on a remote subnet.

Imported Objects

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From TPLINK-MIB

tplinkMgmt

OBJECT-IDENTITY

From TPLINK-TC-MIB

TPRowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
INT dhcpRelayEnableState	1.3.6.1.4.1.11863.6.39.1.1.1	INTEGER	read-write	Enable or disable the switch as a DHCP relay.
INT dhcpRelayExistedOption82Field	1.3.6.1.4.1.11863.6.39.1.1.3	INTEGER	read-write	Select how to handle existed DHCP relay option 82 field.
dhcpRelayGlobalConfig	1.3.6.1.4.1.11863.6.39.1.1
OCT dhcpRelayOption82CircuitID	1.3.6.1.4.1.11863.6.39.1.1.5	OCTET STRING	read-write	Specify the Option 82 customized Circuit ID.(1-64 characters)
INT dhcpRelayOption82Customization	1.3.6.1.4.1.11863.6.39.1.1.4	INTEGER	read-write	Select Enable/Disable DHCP relay option 82 customization on the switch.
OCT dhcpRelayOption82RemoteID	1.3.6.1.4.1.11863.6.39.1.1.6	OCTET STRING	read-write	Specify the Option 82 customized Remote ID.(1-64 characters)
INT dhcpRelayOption82Support	1.3.6.1.4.1.11863.6.39.1.1.2	INTEGER	read-write	Enable or disable DHCP relay option 82 support on the switch.
dhcpRelayServerConfig	1.3.6.1.4.1.11863.6.39.1.2
INT dhcpRelayServerLoopbackId	1.3.6.1.4.1.11863.6.39.1.2.2.1.1	INTEGER	read-only	Loopback interface ID (1-2147483647).
dhcpRelayServerLoopbackInterfaceEntry	1.3.6.1.4.1.11863.6.39.1.2.2.1		not-accessible	DHCP server entries.
IP dhcpRelayServerLoopbackInterfaceIp	1.3.6.1.4.1.11863.6.39.1.2.2.1.2	IpAddress	read-only	DHCP Server IP address.
TPR dhcpRelayServerLoopbackInterfaceStatus	1.3.6.1.4.1.11863.6.39.1.2.2.1.3	TPRowStatus	read-create	The following values are states: these values may be used as follow: active(1),if the entry is being used. createAndGo(4),not being used. destroy(6),destory the entry.
dhcpRelayServerLoopbackInterfaceTable	1.3.6.1.4.1.11863.6.39.1.2.2		not-accessible	The list of DHCP server of loopback interface.
dhcpRelayServerPortChannelInterfaceEntry	1.3.6.1.4.1.11863.6.39.1.2.4.1		not-accessible	DHCP server entries.
IP dhcpRelayServerPortChannelInterfaceIp	1.3.6.1.4.1.11863.6.39.1.2.4.1.2	IpAddress	read-only	DHCP Server IP address.
TPR dhcpRelayServerPortChannelInterfaceStatus	1.3.6.1.4.1.11863.6.39.1.2.4.1.3	TPRowStatus	read-create	The following values are states: these values may be used as follow: active(1),if the entry is being used. createAndGo(4),not being used. destroy(6),destory the entry.
dhcpRelayServerPortChannelInterfaceTable	1.3.6.1.4.1.11863.6.39.1.2.4		not-accessible	The list of DHCP server of port channel interface.
INT dhcpRelayServerPortChannelPortId	1.3.6.1.4.1.11863.6.39.1.2.4.1.1	INTEGER	read-only	Port channel interface ID.
dhcpRelayServerRoutedPortInterfaceEntry	1.3.6.1.4.1.11863.6.39.1.2.3.1		not-accessible	DHCP server entries.
IP dhcpRelayServerRoutedPortInterfaceIp	1.3.6.1.4.1.11863.6.39.1.2.3.1.2	IpAddress	read-only	DHCP Server IP address.
TPR dhcpRelayServerRoutedPortInterfaceStatus	1.3.6.1.4.1.11863.6.39.1.2.3.1.3	TPRowStatus	read-create	The following values are states: these values may be used as follow: active(1),if the entry is being used. createAndGo(4),not being used. destroy(6),destory the entry.
dhcpRelayServerRoutedPortInterfaceTable	1.3.6.1.4.1.11863.6.39.1.2.3		not-accessible	The list of DHCP server of routed port interface.
OCT dhcpRelayServerRoutedPortPortId	1.3.6.1.4.1.11863.6.39.1.2.3.1.1	OCTET STRING	read-only	Displays the port ID.
INT dhcpRelayServerVlanId	1.3.6.1.4.1.11863.6.39.1.2.1.1.1	INTEGER	read-only	VLAN interface ID.
dhcpRelayServerVlanInterfaceEntry	1.3.6.1.4.1.11863.6.39.1.2.1.1		not-accessible	DHCP server entries.
IP dhcpRelayServerVlanInterfaceIp	1.3.6.1.4.1.11863.6.39.1.2.1.1.2	IpAddress	read-only	DHCP Server IP address.
TPR dhcpRelayServerVlanInterfaceStatus	1.3.6.1.4.1.11863.6.39.1.2.1.1.3	TPRowStatus	read-create	The following values are states: these values may be used as follow: active(1),if the entry is being used. createAndGo(4),not being used. destroy(6),destory the entry.
dhcpRelayServerVlanInterfaceTable	1.3.6.1.4.1.11863.6.39.1.2.1		not-accessible	The list of DHCP server of VLAN interface.
tplinkDhcpRelayMIB	1.3.6.1.4.1.11863.6.39			Private MIB for DHCP Relay configuration.
tplinkDhcpRelayMIBObjects	1.3.6.1.4.1.11863.6.39.1
tplinkDhcpRelayNotifications	1.3.6.1.4.1.11863.6.39.2

RFC description

DHCP relay agent configuration with option 82 support on TP-Link switches.

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Download TPLINK-DHCPRELAY-MIB

What Is TPLINK-DHCPRELAY-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description