Netgear

Netgear is assigned IANA private enterprise number 4526. Most Netgear managed switches configure SNMP through a web interface rather than a command-line interface, and support differs meaningfully across Netgear's separate switch product lines, covered below.

SNMPv1 and SNMPv2c (communities)

On Netgear's Smart Managed switches (the GS and FS series), SNMP is configured through the Smart UI web interface, under System > Protocols > SNMP. A Community Configuration table defines, per entry, a management station IP address and mask, a community string, an access mode (read-only or read-write), and a status flag. Restricting each community to a specific management station's address through this table, rather than leaving a wildcard entry in place, is the standard way to limit who can query the switch.

SNMPv3

SNMPv3 is documented for a specific set of Smart Managed Pro models - the GS728TPv2, GS728TPPv2, GS752TPv2, and GS752TPP - configured under System > SNMP > SNMPv3 > User Configuration (Netgear knowledge base article 000058234). On these models, the SNMPv3 user is tied directly to the switch's own admin account rather than being a separate SNMP-only identity: the authentication password is the admin login password, not an independently-set SNMPv3 credential. The documented authentication protocols are MD5 and SHA; the only privacy (encryption) protocol listed is DES, with no AES option shown. Whether SNMPv3 is available on other Smart Managed models outside this specific knowledge base article - the lower-end GS1xx and GS3xx "Plus" switches, for example - is not established in Netgear's published documentation, and should be checked per model rather than assumed.

Sending traps

Trap configuration, also under System > Protocols > SNMP in the Smart UI, is a separate table from community configuration: each entry specifies a recipient IP address, an SNMP version (v1 or v2c only - SNMPv3 is not offered as a trap version in this table), a community string, and a status flag. A further Trap Flags section enables specific trap categories; Netgear's own knowledge base articles name only the link up/down flag explicitly, which is enabled by default. Other categories common on comparable switches, such as cold start or authentication failure, are not individually documented for this product line in Netgear's published knowledge base.

Platform differences

Netgear's SNMP implementation differs across three distinct product lines. The Smart Managed Pro and Smart Managed Plus switches (GS and FS series) use the Smart UI web interface described above, with no documented command-line SNMP configuration. The fully managed M4300 and M4500 switches (the ProSAFE/AV line) run a different operating system with its own command-line interface; SNMP-related CLI syntax resembling snmp-server community and snmp-server host commands circulates in third-party configuration guides, but this syntax does not appear in Netgear's own published documentation for these models and should be checked against the switch's actual command reference rather than assumed to match. Older GSM- and FSM-series switches run a platform licensed from RADLAN and expose objects through NETGEAR-RADLAN-MIB instead of NETGEAR-REF-MIB.

Common OIDs and MIBs

Netgear-specific objects are defined in NETGEAR-REF-MIB, under enterprises.4526 (1.3.6.1.4.1.4526). A productID subtree identifies the switch type: 1.3.6.1.4.1.4526.100.1 for stack switches, .100.2 for Layer 2 switches, .100.3 for Layer 3 switches, and .100.4 for Smart switches. The same MIB tree defines other product-family nodes, including one named rps, whose name suggests a redundant-power-supply identifier - but public mirrors of this MIB expose node names without their description text, so the exact meaning of this and other non-productID nodes, along with any associated PoE or environmental telemetry objects, is not independently confirmed here.

Older GSM- and FSM-series switches are built on a switch platform licensed from RADLAN, and expose SNMP objects defined in NETGEAR-RADLAN-MIB instead of NETGEAR-REF-MIB.

Standard interface counters are read from IF-MIB, as on any SNMP-capable switch.

Gotchas

MIB support is tied to specific model and firmware combinations rather than being uniform across the switch range. Netgear's own documentation lists MIB compatibility per model and firmware revision - for example, full standard MIB support on the GSM73xxSv2 series is documented against firmware 8.0.3.28, and on the GSM72xxv2 series against firmware 8.0.1.29. A switch on an older firmware revision may not expose every object described in a current MIB file.

Community reports describe additional PoE-related objects somewhere in NETGEAR-REF-MIB, but no specific object names or OIDs for them could be confirmed against Netgear's own documentation; treat any PoE-specific OID found in a third-party source as unverified until checked against the actual MIB file for the model in question. Netgear's Insight cloud-management platform is a separate product from SNMP monitoring, with its own polling mechanism; no Netgear documentation describes Insight as replacing or incorporating SNMP.