All MIBs › ETH-SWITCH-MIB › rxFilterIllegalMACDrops
rxFilterIllegalMACDrops
Module: ETH-SWITCH-MIB
OID (symbolic): ETH-SWITCH-MIB::rxFilterIllegalMACDrops
OID (numeric): 1.3.6.1.4.1.208.39.4.2.1.46
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: Indicate more than one MAC address on a port which is not a network port or in general that the filter discards a packet due to an illegal source MAC address
What is rxFilterIllegalMACDrops?
Counts frames dropped because more than one source MAC address appeared on a port that is not designated the shared network port, or more generally because the switch's access-control filter rejected an unauthorized source MAC. It is the main counter for spotting unauthorized devices plugged into single-MAC-restricted ports.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.208.39.4.2.1.46 snmpwalk -v2c -c public <target> ETH-SWITCH-MIB::rxFilterIllegalMACDrops
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.208.39.4.2.1.46.1 snmpget -v2c -c public <target> ETH-SWITCH-MIB::rxFilterIllegalMACDrops.1
Start monitoring Ethernet switch with port/VLAN management (vendor not confirmed) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ETH-SWITCH-MIB::rxFilterIllegalMACDrops OID value, configure state conditions and alerts, and monitor any Ethernet switch with port/VLAN management (vendor not confirmed) from a single console.
OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.208 | scanet | SCANET-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.208.39 | ethSwitch | ETH-SWITCH-MIB |
| 1.3.6.1.4.1.208.39.4 | statistic | ETH-SWITCH-MIB |
| 1.3.6.1.4.1.208.39.4.2 | rxStatTable | ETH-SWITCH-MIB |
| 1.3.6.1.4.1.208.39.4.2.1 | rxStatEntry | ETH-SWITCH-MIB |
| 1.3.6.1.4.1.208.39.4.2.1.46 | rxFilterIllegalMACDrops | ETH-SWITCH-MIB |