NAT-MIB :: natPacketDiscard

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsNAT-MIBnatPacketDiscard

natPacketDiscard

Module: NAT-MIB

OID (symbolic): NAT-MIB::natPacketDiscard

OID (numeric): 1.3.6.1.2.1.123.0.1

Node type: NOTIFICATION-TYPE

Description: This notification is generated when IP packets are discarded by the NAT function; e.g., due to lack of mapping space when NAT is out of addresses or ports.

Note that the generation of natPacketDiscard notifications is throttled by the agent, as specified by the 'natNotifThrottlingInterval' object. Deprecated in favor of NATV2-MIB.

Examples

Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):

snmptrap -v2c -c public <manager> '' NAT-MIB::natPacketDiscard
snmptrap -v2c -c public <manager> '' 1.3.6.1.2.1.123.0.1

Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):

snmptrapd -f -Lo -c /dev/null authCommunity log public

Example snmptrapd log entry:

zoo11-linux.zoo [UDP: [192.168.30.111]:60580->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (276675236) 32 days, 0:32:32.36
  SNMPv2-MIB::snmpTrapOID.0 = OID: NAT-MIB::natPacketDiscard

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OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.123natMIBNAT-MIB
1.3.6.1.2.1.123.0natMIBNotificationsNAT-MIB
1.3.6.1.2.1.123.0.1natPacketDiscardNAT-MIB