CISCO-NAT-CGN-EXT-MIB :: cNatCgnNotifPortUsageWatermarkLow

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CISCO-NAT-CGN-EXT-MIB › cNatCgnNotifPortUsageWatermarkLow

cNatCgnNotifPortUsageWatermarkLow

Module: CISCO-NAT-CGN-EXT-MIB

OID (symbolic): CISCO-NAT-CGN-EXT-MIB::cNatCgnNotifPortUsageWatermarkLow

OID (numeric): 1.3.6.1.4.1.9.9.818.0.1

Node type: NOTIFICATION-TYPE

Description: The device generates this notification when the value of cNatCgnCounterCurrentPortAllocation becomes lower than or equal to the value of cNatCgnCounterPortUsageLowThreshold. The device will not generate notification if cNatCgnCounterPortUsageLowThreshold is set to zero.

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> '' CISCO-NAT-CGN-EXT-MIB::cNatCgnNotifPortUsageWatermarkLow
snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.9.9.818.0.1

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]:59482->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (460322394) 53 days, 6:40:23.94
  SNMPv2-MIB::snmpTrapOID.0 = OID: CISCO-NAT-CGN-EXT-MIB::cNatCgnNotifPortUsageWatermarkLow

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.818ciscoNatCgnExtMIBCISCO-NAT-CGN-EXT-MIB
1.3.6.1.4.1.9.9.818.0ciscoNatCgnExtMIBNotifsCISCO-NAT-CGN-EXT-MIB
1.3.6.1.4.1.9.9.818.0.1cNatCgnNotifPortUsageWatermarkLowCISCO-NAT-CGN-EXT-MIB