A3COM-HUAWEI-DHCPSNOOP-MIB

Description: Monitors DHCP snooping binding entries, trusted ports, and attack-prevention counters on H3C switches.

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The A3COM-HUAWEI-DHCPSNOOP-MIB is a jointly-branded 3Com/Huawei (H3C) proprietary MIB that manages the DHCP Snooping security feature on switches, a mechanism that inspects DHCP traffic to build a trusted binding table and block rogue DHCP servers or spoofed clients. It exposes configuration for trusted ports, the DHCP snooping binding table, and counters related to attack-prevention actions. From a monitoring standpoint it is used to track the software-level security posture of the switch—verifying DHCP snooping is enabled, checking binding table population, and watching for spikes in blocked/attack counters that indicate a DHCP spoofing attempt. It complements standard bridge/VLAN MIBs and is specific to H3C/3Com's Comware-family switch software. It is typically deployed on 3Com/H3C access-layer switches in enterprise networks to protect against rogue DHCP servers and IP/MAC spoofing. Network engineers evaluating or troubleshooting this functionality can download the A3COM-HUAWEI-DHCPSNOOP-MIB file directly to load it into their MIB browser.

No sample objects were provided for this module, so a fully grounded object-level scenario isn't available; in general, an administrator would expect to poll a DHCP snooping binding table for the trusted client IP/MAC/port entries and an attack counter object to detect a surge indicating an active DHCP spoofing or exhaustion attempt on an access port.

3Com and Huawei collaborative vendor MIB for DHCP snooping security feature management.