All MIBs › NAT
Category: IP Addressing
Description: Manages network address translation mapping tables and session tracking objects.
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What Is NAT?
NAT is intended to model Network Address Translation configuration and session state on a NAT-capable router or firewall, though no module description text or sample objects were available in the source excerpt for this batch to confirm its exact object structure or origin. Based on its stated short description, it exposes address-translation mapping tables and session-tracking objects — the bindings between private and public IP addresses/ports and their associated active sessions. NAT MIBs of this kind are used to monitor the software/control-plane status of address translation — for example, the number of active NAT bindings/sessions and translation-table utilization — which helps detect NAT pool exhaustion or session-table overflow rather than physical sensor conditions. Such MIBs typically build on or coexist with standard IP/interface addressing conventions for the underlying interfaces performing translation. It would be deployed on routers, firewalls, or NAT gateways handling address translation for private networks accessing public IP space. Engineers can download the NAT file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in NAT. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- vendor-neutral, standards-based NAT MIB style, not tied to a specific manufacturer — applies to NAT-capable routers/firewalls
Monitoring Examples
No concrete object names were available in the provided sample_objects for this module, so specifics cannot be confirmed; consistent with its short description, a typical scenario would involve polling a NAT binding/session table to track active translation entries, where a rapidly climbing session count approaching the configured pool or port-range limit would indicate translation exhaustion likely to cause new outbound connections to fail.
What Can Be Monitored
- active NAT bindings
- translation session count
- address/port mapping table
- NAT pool utilization
Imported Objects
From RFC1155-SMI
| Counter |
From SNMPv2-SMI
| IpAddress | |
| OBJECT-TYPE | |
| TimeTicks | |
| enterprises |
OIDs
RFC description
Network Address Translation device configuration including interfaces, operations, and metering.
Start monitoring NAT-capable router/firewall (vendor unspecified) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.