DLINK-PORT-SECURITY-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsDLINK-PORT-SECURITY-MIB

Organization: D-Link Corp.

Last Updated: 2012-10-16

Category: Domain: Security, Vendor: D-Link

Description: Manages port security features including MAC-based access control and unauthorized access actions on D-Link switches.

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What Is DLINK-PORT-SECURITY-MIB?

This is a D-Link proprietary MIB for port security on D-Link switches, controlling MAC-based access control per switch port and the action taken (e.g., shutdown, discard, trap) when an unauthorized MAC address is seen. It exposes configuration for enabling port security, setting the maximum number of secure MAC addresses per port, and the violation action, plus status showing learned/secure MAC addresses and any triggered violations. For monitoring, it is used to confirm the security posture of each port and to catch security events; an admin would check whether a port has hit its secure-MAC limit or triggered a violation action, which reveals a potential unauthorized device attempting to connect or a MAC-spoofing attempt. It is a vendor-private feature that parallels the port-security concepts seen in various vendor-specific and 802.1X-adjacent MIBs without directly extending a single IETF standard. It is deployed on D-Link access-layer switches where physical port access needs to be restricted to known/authorized MAC addresses. Engineers can download the DLINK-PORT-SECURITY-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in DLINK-PORT-SECURITY-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 managed switch

Monitoring Examples

No sample object names were provided for this module, so specific OIDs cannot be cited here. Based on its description, a realistic monitoring scenario is polling per-port port-security enable state and the count of learned secure MAC addresses against the configured maximum, and checking for a triggered violation action (e.g., port shutdown) which would indicate an unauthorized device attempted to connect to that port.

What Can Be Monitored

  • port security enable state per port
  • secure MAC address count/limit
  • violation action taken
  • learned secure MAC addresses
Imported Objects

From DLINK-ID-REC-MIB

dlink-common-mgmt

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress
OIDs

RFC description

D-Link MIB for port security management including MAC address learning and violation control.

Start monitoring D-Link managed switch (MAC-based port security) 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.

Download DLINK-PORT-SECURITY-MIB