ZYXEL-ANTI-ARPSCAN-MIB

Description: Manages ZyXEL anti-ARP scanning protection to detect and block ARP scan attacks on switch ports.

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ZYXEL-ANTI-ARPSCAN-MIB is a ZyXEL private module for the anti-ARP-scan security feature on ZyXEL switches, which detects and blocks hosts performing ARP scanning (a common network reconnaissance/attack precursor) on switch ports. It exposes configuration objects for enabling the feature and setting detection thresholds, along with status/action data identifying ports where scanning has been detected and blocked. Its monitoring value lies in the software status of this security feature: an administrator can check whether anti-ARP-scan protection is enabled per port and see which ports have triggered a block action, which is a direct fault/security-event indicator for the switch. It relates to standard ARP and bridge-port MIBs since detection is applied per switch port/interface. It is deployed on ZyXEL access-layer switches in environments where ARP-scan-based reconnaissance or attacks need to be automatically detected and mitigated, making ZYXEL-ANTI-ARPSCAN-MIB SNMP monitoring a key part of access-layer security auditing.

No sample objects were provided for this module, so specific object names cannot be cited; conceptually, an administrator would poll per-port anti-ARP-scan enable status and blocked-host/action state to confirm the feature is active where expected. A port showing an active block action would reveal a host on that port is generating abnormal ARP scan traffic, indicating a possible compromised or misbehaving device.

Enables ARP scan detection and prevention with configurable port-based and host-based thresholds to protect against ARP attacks.