Wellfleet-NAT-MIB

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Category: Wellfleet BayNetworks System Management

Description: Monitors Wellfleet Network Address Translation mappings, translation table usage, and NAT session statistics.

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What Is Wellfleet-NAT-MIB?

Wellfleet-NAT-MIB is a legacy vendor MIB (Wellfleet, later part of Bay Networks/Nortel) for monitoring Network Address Translation on routers running Wellfleet software. It exposes NAT mapping tables, translation statistics, and session usage information. The module supports monitoring the operational health of the NAT subsystem, including how many translation entries are active, session table utilization, and whether translation resources are being exhausted, which are key software-level indicators of NAT service health. No module description was available, so dependencies on other MIBs cannot be confirmed from context, though it likely relies on base Wellfleet router MIB conventions. It was typically deployed on Wellfleet/Bay Networks routers performing NAT for enterprise or service provider edge networks. Engineers can download the Wellfleet-NAT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Wellfleet-NAT-MIB. 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

Wellfleet router
Bay Networks/Nortel router

Monitoring Examples

An administrator would poll the NAT mapping and session tables to check current translation counts against the router's configured limits, since an unexpectedly full translation table can cause new outbound connections to fail. As no sample_objects were provided in the source, specific object names are not available and this describes the general monitoring pattern implied by the short description.

What Can Be Monitored

NAT translation table usage
active NAT mappings
NAT session statistics
translation resource exhaustion

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress

From RFC1213-MIB

DisplayString

From Wellfleet-COMMON-MIB

wfNatGroup

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
wfNatBase	1.3.6.1.4.1.18.3.5.3.2.7.1
INT wfNatBaseDelete	1.3.6.1.4.1.18.3.5.3.2.7.1.1	INTEGER	read-write	'This value determines whether NAT is configured'
INT wfNatBaseDisable	1.3.6.1.4.1.18.3.5.3.2.7.1.2	INTEGER	read-write	'The administrative status of NAT in the router. The value 'enabled' denotes that the NAT Process is active on at least one interface; 'disabled' disables it on all interfaces.'
INT wfNatBaseState	1.3.6.1.4.1.18.3.5.3.2.7.1.3	INTEGER	read-only	'The state of NAT'
GAU wfNatBaseSoloistSlotMask	1.3.6.1.4.1.18.3.5.3.2.7.1.4	Gauge	read-write	Slot mask for which slots the soloist gate is eligible to run on. The MSBit represents slot 1, the next most significant bit represents slot 2, and so on... Slots can be 1-14. Default is all slots.
INT wfNatBaseSoloistSlot	1.3.6.1.4.1.18.3.5.3.2.7.1.5	INTEGER	read-only	Slot on which NAT soloist gate is running. Slots can be 1-14. Default is zero.
INT wfNatBaseLogMask	1.3.6.1.4.1.18.3.5.3.2.7.1.6	INTEGER	read-write	A parameter to specify which NAT log messages should be logged. Each bit represents a message as defined below. A 1 in that bit location means to log it and a 0 means not to put that log message in the log. Changing this value will NOT restart NAT, but will take effct immediately(if there are any messages to be logged. bit 31 bit 0 +---------------------------------------+ \| \| +---------------------------------------+ NAT_DBG_MIB_LOG 0x00000001 NAT_DBG_IP_LOG 0x00000002 NAT_DBG_FWD_LOG 0x00000004 NAT_DBG_MAPPING_LOG 0x00000008 NAT_DBG_AGING_LOG 0x00000010 NAT_DBG_SYNCH_LOG 0x00000020
INT wfNatBaseMapTimeout	1.3.6.1.4.1.18.3.5.3.2.7.1.7	INTEGER	read-write	This controls whether or not the dynamic mapping table entries are aged out when unused.
INT wfNatBaseMapMaxTimeout	1.3.6.1.4.1.18.3.5.3.2.7.1.8	INTEGER	read-write	The maximum time in seconds before unused NAT mapping table entries are deleted. This timeout or aging does not apply to static mapping entries.
GAU wfNatBaseMapDynMapsCount	1.3.6.1.4.1.18.3.5.3.2.7.1.9	Gauge	read-only	Number of Dynamic Mappings in the dymanic mapping table
GAU wfNatBaseFtpSessionCount	1.3.6.1.4.1.18.3.5.3.2.7.1.10	Gauge	read-only	Number of FTP sessions detected on this box translated by NAT
GAU wfNatBaseNto1TrTotCount	1.3.6.1.4.1.18.3.5.3.2.7.1.11	Gauge	read-only	Total number of active Nto1 translation counts on the box.
INT wfNatBaseSynchronization	1.3.6.1.4.1.18.3.5.3.2.7.1.12	INTEGER	read-write	The administrative status of NAT Synchronization in the router. The value `enabled' denotes that the NAT Synchronization is active and is synchronizing with the peer specified in noraml conditions.; `disabled' disables it on the box and all the peer connections will be teared down.'
IP wfNatBaseSynRouterID	1.3.6.1.4.1.18.3.5.3.2.7.1.13	IpAddress	read-write	This represents the Router Identifier for NAT Synchronization Only. This is used to detect the duplicate TCP connection between peers. The value of it can be any integer which is unique between all the NAT Syn peers this router has. An IP Address of one of the router interfaces can be used as the RouterID. Changing the value will result into breaking and reconnecting using new ID with all the peers.'
INT wfNatBaseSynPort	1.3.6.1.4.1.18.3.5.3.2.7.1.14	INTEGER	read-write	This represents the TCP port on which the connection requests from the peers will be accepted. When NAT Synchronization Protocol comes up, it will open a listen connection for this port number. This attribute value has to be the same on all the peers that want to make the TCP connection.'
INT wfNatBaseSynKeepAlvInterval	1.3.6.1.4.1.18.3.5.3.2.7.1.15	INTEGER	read-write	Idle session timeout period, in seconds. If an established TCP connection remains inactive for this interval, KEEPALIVE messages will be sent to the peer (if the Keepalive Timer is non-zero). Setting the Idle Timer to zero disables the keepalive feature.
INT wfNatBaseSynKeepAlvTimer	1.3.6.1.4.1.18.3.5.3.2.7.1.16	INTEGER	read-write	KEEPALIVE retransmit timeout period, in seconds. This is the interval at which unacknowledged KEEPALIVE messages will be retransmitted. If the Idle Timer is set to zero, this timer ignored. If the Idle Timer is non-zero and this timer IS zero, no KEEPALIVEs are sent and the session is terminated upon expiration of the Idle Timer.
INT wfNatBaseSynKeepAlvRetries	1.3.6.1.4.1.18.3.5.3.2.7.1.17	INTEGER	read-write	Number of unacknowledged KEEPALIVE messages retransmitted before the TCP session is terminated. If this count is set to zero, only one KEEPALIVE message will be sent.
INT wfNatBaseLocalToLocalEnable	1.3.6.1.4.1.18.3.5.3.2.7.1.18	INTEGER	read-write	Allow forwarding of traffic from one local NAT interface to another local NAT interface.
INT wfNatBaseInstallUniPrivAddr	1.3.6.1.4.1.18.3.5.3.2.7.1.19	INTEGER	read-write	This MIB was added in BayRS 14.20 to address a compatibility issue concerning non-DNS NAT translations when upgrading from a pre-14.20 NAT configuration to a 14.20 or greater version of BayRS software. This MIB should remain enabled. Disabling this MIB will cause Uni-directional NAT to no longer function correctly on the router.
wfNatAddrRangeTable	1.3.6.1.4.1.18.3.5.3.2.7.2		not-accessible	Table of address ranges that have been designated as the set of external apparent addresses that are to be mapped in place of internal actual addresses. These addresses would be the non-public reigistered addresses.
wfNatAddrRangeEntry	1.3.6.1.4.1.18.3.5.3.2.7.2.1		not-accessible	'Information describing each of the available address ranges.'
INT wfNatAddrRangeDelete	1.3.6.1.4.1.18.3.5.3.2.7.2.1.1	INTEGER	read-write	'Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete an address range entry.'
INT wfNatAddrRangeDisable	1.3.6.1.4.1.18.3.5.3.2.7.2.1.2	INTEGER	read-write	'Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable an address range entry.'
IP wfNatAddrRangeAddress	1.3.6.1.4.1.18.3.5.3.2.7.2.1.3	IpAddress	read-write	'The IP beginning address of this range entry.
INT wfNatAddrRangePrefixLen	1.3.6.1.4.1.18.3.5.3.2.7.2.1.4	INTEGER	read-write	'The IP address mask that in conjunction with the start address defines the address range of the entry.'
wfNatLocalAddrRangeTable	1.3.6.1.4.1.18.3.5.3.2.7.3		not-accessible	Table of address ranges that have been designated as the set of local addresses that are to be mapped via NAT.
wfNatLocalAddrRangeEntry	1.3.6.1.4.1.18.3.5.3.2.7.3.1		not-accessible	'Information describing each of the available address ranges.'
INT wfNatLocalAddrRangeDelete	1.3.6.1.4.1.18.3.5.3.2.7.3.1.1	INTEGER	read-write	'Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete an address range entry.'
INT wfNatLocalAddrRangeDisable	1.3.6.1.4.1.18.3.5.3.2.7.3.1.2	INTEGER	read-write	'Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable an address range entry.'
IP wfNatLocalAddrRangeAddress	1.3.6.1.4.1.18.3.5.3.2.7.3.1.3	IpAddress	read-write	'The IP beginning address of this range entry.
INT wfNatLocalAddrRangePrefixLen	1.3.6.1.4.1.18.3.5.3.2.7.3.1.4	INTEGER	read-write	'The IP address mask that in conjunction with the start address defines the address range of the entry.'
IP wfNatLocalAddrRangeNto1Addr	1.3.6.1.4.1.18.3.5.3.2.7.3.1.5	IpAddress	read-write	Nto1 translation address used for this range.
wfNatStaticMapTable	1.3.6.1.4.1.18.3.5.3.2.7.4		not-accessible	'This table creates instances of pre-defined NAT mappings.'
wfNatStaticMapEntry	1.3.6.1.4.1.18.3.5.3.2.7.4.1		not-accessible	'A single local-to-global address mapping.'
INT wfNatStaticMapDelete	1.3.6.1.4.1.18.3.5.3.2.7.4.1.1	INTEGER	read-write	'Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete a static address mapping entry.'
INT wfNatStaticMapDisable	1.3.6.1.4.1.18.3.5.3.2.7.4.1.2	INTEGER	read-write	'Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable a static address mapping entry.'
IP wfNatStaticMapLocalAddress	1.3.6.1.4.1.18.3.5.3.2.7.4.1.3	IpAddress	read-write	'The local or private address of the mapping pair.'
IP wfNatStaticMapGlobalAddress	1.3.6.1.4.1.18.3.5.3.2.7.4.1.4	IpAddress	read-write	'The global or external address of the mapping pair.'
INT wfNatStaticMapProtocol	1.3.6.1.4.1.18.3.5.3.2.7.4.1.5	INTEGER	read-write	'The IP protocol of the mapping pair.'
INT wfNatStaticMapLocalPort	1.3.6.1.4.1.18.3.5.3.2.7.4.1.6	INTEGER	read-write	'The local UDP or TCP port of the mapping pair. This will only be relevent if the protocol is either UDP or TCP.'
INT wfNatStaticMapGlobalPort	1.3.6.1.4.1.18.3.5.3.2.7.4.1.7	INTEGER	read-write	'The global UDP or TCP port of the mapping pair. This will only be relevent if the protocol is either UDP or TCP.'
wfNatMapTable	1.3.6.1.4.1.18.3.5.3.2.7.5		not-accessible	'This table defines the current set of address mappings that are in effect.'
wfNatMapEntry	1.3.6.1.4.1.18.3.5.3.2.7.5.1		not-accessible
IP wfNatMapLocalAddress	1.3.6.1.4.1.18.3.5.3.2.7.5.1.1	IpAddress	read-only	'The local address of the mapping pair.'
IP wfNatMapGlobalAddress	1.3.6.1.4.1.18.3.5.3.2.7.5.1.2	IpAddress	read-only	'The global address of the mapping pair.'
INT wfNatMapProtocol	1.3.6.1.4.1.18.3.5.3.2.7.5.1.3	INTEGER	read-only	'The IP protocol of the mapping pair.'
INT wfNatMapLocalPort	1.3.6.1.4.1.18.3.5.3.2.7.5.1.4	INTEGER	read-only	'When the mapping is for a TCP connection, this denotes the TCP port number on the local side.'
INT wfNatMapGlobalPort	1.3.6.1.4.1.18.3.5.3.2.7.5.1.5	INTEGER	read-only	'When the mapping is for a TCP connection, this denotes the TCP port number on the global side.'
CTR wfNatMapTxCount	1.3.6.1.4.1.18.3.5.3.2.7.5.1.6	Counter	read-only	'Number of packets for this mapping pair that have been mapped from the local to the global network.'
CTR wfNatMapRxCount	1.3.6.1.4.1.18.3.5.3.2.7.5.1.7	Counter	read-only	'Number of packets for this mapping pair that have been mapped from the global to the local network.'
CTR wfNatMapTimeout	1.3.6.1.4.1.18.3.5.3.2.7.5.1.8	Counter	read-only	'The time in seconds since this mapping entry was last used. This is used to age out mapping entries.'
INT wfNatMapMode	1.3.6.1.4.1.18.3.5.3.2.7.5.1.9	INTEGER	read-only	This is the bit mask representing the type of this mapping. Each bit specifies the type as follows: The mapping could be only ONE of the foolowing three... 0x01000000 - This mapping is origianted on this router, i.e. this NAT router performed the translation 0x02000000 - This mapping is learned from the peer, i.e. this translation was learned from the peer using NAT Synchronization feature. 0x04000000 - This mapping is owned, i.e. it was originally learned from peer, but this router received traffic which used this mapping. ...and only ONE of the following three. 0x00000010 - This mapping is the STATIC mapping. 0x00000020 - This mapping is Dynamic(1 to 1) mapping. 0x00000040 - This mapping is N to 1 mapping.
wfNatIfTable	1.3.6.1.4.1.18.3.5.3.2.7.6		not-accessible	'The set of interface that are participating in the NAT protocol.'
wfNatIfEntry	1.3.6.1.4.1.18.3.5.3.2.7.6.1		not-accessible	'An single instance of a NAT interface entry.'
INT wfNatIfDelete	1.3.6.1.4.1.18.3.5.3.2.7.6.1.1	INTEGER	read-write	This variable determines in a NAT Interface has been configured on the router.
INT wfNatIfDisable	1.3.6.1.4.1.18.3.5.3.2.7.6.1.2	INTEGER	read-write	'The NAT interface's administrative status. The value 'enabled' denotes that NAT has been configured on the interface. The value 'disabled' denotes that the interface is not running NAT.'
IP wfNatIfIpAddress	1.3.6.1.4.1.18.3.5.3.2.7.6.1.3	IpAddress	read-only	The IP address of this NAT interface.
INT wfNatIfCircuit	1.3.6.1.4.1.18.3.5.3.2.7.6.1.4	INTEGER	read-write	The circuit number of this interface.
INT wfNatIfType	1.3.6.1.4.1.18.3.5.3.2.7.6.1.5	INTEGER	read-write	Denotes the type of NAT interface being defined.
INT wfNatIfState	1.3.6.1.4.1.18.3.5.3.2.7.6.1.6	INTEGER	read-only	'The state of NAT on this interface'
CTR wfNatIfTxCount	1.3.6.1.4.1.18.3.5.3.2.7.6.1.7	Counter	read-only	Number of packets mapped over this interface from the local to the global network.'
CTR wfNatIfRxCount	1.3.6.1.4.1.18.3.5.3.2.7.6.1.8	Counter	read-only	Number of packets mapped over this interface from the global to the local network.'
CTR wfNatIfPktDropCount	1.3.6.1.4.1.18.3.5.3.2.7.6.1.9	Counter	read-only	Number of packets dropped on this interface
STR wfNatIfDomain	1.3.6.1.4.1.18.3.5.3.2.7.6.1.10	DisplayString	read-write	When wfNatIfType is set to biDirectional, specifies the Address Domain Name that this interface is connected to, otherwise set to null.
wfNatSynPeerTable	1.3.6.1.4.1.18.3.5.3.2.7.7		not-accessible	The Nat Synchronization Peer table contains configuration and statistical information regarding this router's NAT peers
wfNatSynPeerEntry	1.3.6.1.4.1.18.3.5.3.2.7.7.1		not-accessible	An entry in the NAT Synchronization-Peer table
INT wfNatSynPeerDelete	1.3.6.1.4.1.18.3.5.3.2.7.7.1.1	INTEGER	read-write	Create/Delete: if set to delete, this instance of the peer entry is deleted, which results into the termination of peer connection.
INT wfNatSynPeerDisable	1.3.6.1.4.1.18.3.5.3.2.7.7.1.2	INTEGER	read-write	Enable/Disable: controls whether the peer connection is enabled or disabled, disabling this results into the termination of TCP connection
INT wfNatSynPeerState	1.3.6.1.4.1.18.3.5.3.2.7.7.1.3	INTEGER	read-only	the administrative state of the peer connection
INT wfNatSynPeerConnType	1.3.6.1.4.1.18.3.5.3.2.7.7.1.4	INTEGER	read-only	the type of the TCP connection with the peer, whether this connection is accepted from the peer or it was actively initialted by this router to the peer.
IP wfNatSynPeerRouterID	1.3.6.1.4.1.18.3.5.3.2.7.7.1.5	IpAddress	read-only	A unique non-zero RouterID of the peer that this router is expecting from the connection This is also the instance of the Peer Entry.
IP wfNatSynPeerAddress	1.3.6.1.4.1.18.3.5.3.2.7.7.1.6	IpAddress	read-write	the IP Address of the peer, where the router will send a connect request
INT wfNatSynPeerTransSent	1.3.6.1.4.1.18.3.5.3.2.7.7.1.7	INTEGER	read-only	The number of translations sent to this peer by the router
INT wfNatSynPeerTransRecd	1.3.6.1.4.1.18.3.5.3.2.7.7.1.8	INTEGER	read-only	The number of translations received from this peer by the router
wfNatAddressRangeTable	1.3.6.1.4.1.18.3.5.3.2.7.8		not-accessible	Table of address ranges. This table was replaced by wfNatSrcAddressFilterTable and wfNatTranslationPoolTable
wfNatAddressRangeEntry	1.3.6.1.4.1.18.3.5.3.2.7.8.1		not-accessible	Information describing each of the available address ranges.
INT wfNatAddressRangeDelete	1.3.6.1.4.1.18.3.5.3.2.7.8.1.1	INTEGER	read-write	Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete an address range entry.
INT wfNatAddressRangeDisable	1.3.6.1.4.1.18.3.5.3.2.7.8.1.2	INTEGER	read-write	Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable an address range entry.
IP wfNatAddressRangeAddress	1.3.6.1.4.1.18.3.5.3.2.7.8.1.3	IpAddress	read-only	The IP beginning address of this range entry.
INT wfNatAddressRangePrefixLen	1.3.6.1.4.1.18.3.5.3.2.7.8.1.4	INTEGER	read-only	The number of contiguous bits set in the IP address mask which are used to define the address range of the entry.
INT wfNatAddressRangeIndex	1.3.6.1.4.1.18.3.5.3.2.7.8.1.5	INTEGER	read-only	A unique value for this entry in wfNatAddressRangeTable.
IP wfNatAddressRangeNto1Addr	1.3.6.1.4.1.18.3.5.3.2.7.8.1.6	IpAddress	read-write	When wfNatAddressRangeType is set to srcAddrFilter, specifies the N-to-1 translation address used for this range, otherwise set to zero.
INT wfNatAddressRangeType	1.3.6.1.4.1.18.3.5.3.2.7.8.1.7	INTEGER	read-write	Denotes the type of address range being defined. sourceAddrFilter: a range of IP addresses used to detect packets which need traditional NAT forwarding. translationPool: for traditional NAT forwarding, a range of IP addresses from which translation addresses are picked. domainSrcAddrFilter: a range of IP addresses used to detect domain specific packets which need domain specific NAT forwarding. domainTransPool: for domain specific NAT forwarding, a range of IP addresses from which domain specific translation addresses are picked.
STR wfNatAddressRangeDomain	1.3.6.1.4.1.18.3.5.3.2.7.8.1.8	DisplayString	read-write	When wfNatAddressRangeType is set to domainSrcAddrFilter or domainTransPool, specifies the Address Domain Name that this address range is valid for, otherwise set to null.
INT wfNatAddressRangeTransPool	1.3.6.1.4.1.18.3.5.3.2.7.8.1.9	INTEGER	read-write	This attribute is only valid for the wfNatAddressRangeType as domainSrcAddrFilter(3). The value of this attribute decides where to get the translation address for this range from. This could be either the translation Pool defined for the inbound domain or the outbound domain for the packet in question.
IP wfNatAddressRangeStaticNextHop	1.3.6.1.4.1.18.3.5.3.2.7.8.1.10	IpAddress	read-write	The IP address of the next hop of this range entry.
INT wfNatAddressRangeUnnumCct	1.3.6.1.4.1.18.3.5.3.2.7.8.1.11	INTEGER	read-write	This Nat Address range over the unnumbered interface.
wfNatStaticMappingTable	1.3.6.1.4.1.18.3.5.3.2.7.9		not-accessible	`This table creates instances of pre-defined NAT translations.'
wfNatStaticMappingEntry	1.3.6.1.4.1.18.3.5.3.2.7.9.1		not-accessible	A single original source address to translated address translation.
INT wfNatStaticMappingDelete	1.3.6.1.4.1.18.3.5.3.2.7.9.1.1	INTEGER	read-write	Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete a static address translation entry.
INT wfNatStaticMappingDisable	1.3.6.1.4.1.18.3.5.3.2.7.9.1.2	INTEGER	read-write	Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable a static address translation entry.
IP wfNatStaticMappingOrigAddress	1.3.6.1.4.1.18.3.5.3.2.7.9.1.3	IpAddress	read-write	The original (un-translated) address of the translation.
IP wfNatStaticMappingTransAddress	1.3.6.1.4.1.18.3.5.3.2.7.9.1.4	IpAddress	read-only	The translated address of the translation.
INT wfNatStaticMappingProtocol	1.3.6.1.4.1.18.3.5.3.2.7.9.1.5	INTEGER	read-only	The IP protocol of the translation. Example values are 6 for TCP, and 17 for UDP.
INT wfNatStaticMappingOrigPort	1.3.6.1.4.1.18.3.5.3.2.7.9.1.6	INTEGER	read-write	The original (domain specific) UDP or TCP port of the translation. This will only be relevent if the protocol is either UDP or TCP.
INT wfNatStaticMappingTransPort	1.3.6.1.4.1.18.3.5.3.2.7.9.1.7	INTEGER	read-only	The translated UDP or TCP port of the translation. This will only be relevent if the protocol is either UDP or TCP.
STR wfNatStaticMappingInDomain	1.3.6.1.4.1.18.3.5.3.2.7.9.1.8	DisplayString	read-write	This attribute specifies the name of the address domain that this source translation shall be valid for. In other words, this translation shall only be valid for source addresses coming inbound from this domain.
STR wfNatStaticMappingOutDomain	1.3.6.1.4.1.18.3.5.3.2.7.9.1.9	DisplayString	read-write	This attribute specifies the name of the outbound address domain that this translation will be valid for. In other words, this translation only applies to translations that will be forwarded out into this address domain.
IP wfNatStaticMappingStaticNextHop	1.3.6.1.4.1.18.3.5.3.2.7.9.1.10	IpAddress	read-write	The IP address of the next hop of this static entry.
INT wfNatStaticMappingUnnumCct	1.3.6.1.4.1.18.3.5.3.2.7.9.1.11	INTEGER	read-write	This Nat static translation over the unnumbered interface.
wfNatMappingTable	1.3.6.1.4.1.18.3.5.3.2.7.10		not-accessible	This table defines the current set of address translations that are in effect.
wfNatMappingEntry	1.3.6.1.4.1.18.3.5.3.2.7.10.1		not-accessible	A single original source address to translated address translation.
IP wfNatMappingOrigAddress	1.3.6.1.4.1.18.3.5.3.2.7.10.1.1	IpAddress	read-only	The original (un-translated) address of the translation.
IP wfNatMappingTransAddress	1.3.6.1.4.1.18.3.5.3.2.7.10.1.2	IpAddress	read-only	The translated address of the translation.
INT wfNatMappingProtocol	1.3.6.1.4.1.18.3.5.3.2.7.10.1.3	INTEGER	read-only	`The IP protocol of the translation.'
INT wfNatMappingOrigPort	1.3.6.1.4.1.18.3.5.3.2.7.10.1.4	INTEGER	read-only	When the translation is for a TCP connection, this denotes the original TCP port number.
INT wfNatMappingTransPort	1.3.6.1.4.1.18.3.5.3.2.7.10.1.5	INTEGER	read-only	When the translation is for a TCP connection, this denotes the translated TCP port number.
CTR wfNatMappingTxCount	1.3.6.1.4.1.18.3.5.3.2.7.10.1.6	Counter	read-only	Number of packets forwarded by NAT using this translation.
CTR wfNatMappingRxCount	1.3.6.1.4.1.18.3.5.3.2.7.10.1.7	Counter	read-only	Number of packets received by NAT using this translation.
CTR wfNatMappingTimeout	1.3.6.1.4.1.18.3.5.3.2.7.10.1.8	Counter	read-only	The time in seconds since this translation entry was last used. This is used to age out translation entries.
INT wfNatMappingMode	1.3.6.1.4.1.18.3.5.3.2.7.10.1.9	INTEGER	read-only	This is the bit mask representing the type of this translation. Each bit specifies the type as follows: The translation could be only ONE of the following three... 0x01000000 - This translation is origianted on this router, i.e. this NAT router performed the translation. 0x02000000 - This translation is learned from the peer, i.e. this translation was learned from the peer using NAT Synchronization feature. 0x04000000 - This translation is owned, i.e. it was originally learned from peer, but this router received traffic which used this translation. ...and only ONE of the following three. 0x00000010 - This translation is the STATIC translation. 0x00000020 - This translation is Dynamic(1 to 1) translation. 0x00000040 - This translation is N to 1 translation.
STR wfNatMappingInDomain	1.3.6.1.4.1.18.3.5.3.2.7.10.1.10	DisplayString	read-only	This attribute specifies the name of the address domain that this source translation shall be valid for. In ther words, this translation shall only be valid for source addresses coming inbound from this domain.
STR wfNatMappingOutDomain	1.3.6.1.4.1.18.3.5.3.2.7.10.1.11	DisplayString	read-only	This attribute specifies the name of the outbound address domain that this translation will be valid for. In other words, this translation only applies to translations that will be forwarded out into this address domain.
wfNatIntfTable	1.3.6.1.4.1.18.3.5.3.2.7.11		not-accessible	'The list of configured NAT interfaces.'
wfNatIntfEntry	1.3.6.1.4.1.18.3.5.3.2.7.11.1		not-accessible	'A NAT interface description.'
INT wfNatIntfDelete	1.3.6.1.4.1.18.3.5.3.2.7.11.1.1	INTEGER	read-write	This variable determines if a NAT Interface has been configured on the router.
INT wfNatIntfDisable	1.3.6.1.4.1.18.3.5.3.2.7.11.1.2	INTEGER	read-write	'The NAT interface's administrative status. The value 'enabled' denotes that NAT has been configured on the interface. The value 'disabled' denotes that the interface is not running NAT.'
IP wfNatIntfIpAddress	1.3.6.1.4.1.18.3.5.3.2.7.11.1.3	IpAddress	read-only	The IP address of this NAT interface.
INT wfNatIntfCircuit	1.3.6.1.4.1.18.3.5.3.2.7.11.1.4	INTEGER	read-write	The circuit number of this interface.
STR wfNatIntfDomain	1.3.6.1.4.1.18.3.5.3.2.7.11.1.5	DisplayString	read-write	This attribute specifies the Address Domain Name that this interface is connected to. Unidirectional NAT interfaces should be set with domain name of 'private' or 'public'
INT wfNatIntfState	1.3.6.1.4.1.18.3.5.3.2.7.11.1.6	INTEGER	read-only	'The state of NAT on this interface'
CTR wfNatIntfTxCount	1.3.6.1.4.1.18.3.5.3.2.7.11.1.7	Counter	read-only	Number of packets mapped over this interface from the local to the global network.'
CTR wfNatIntfRxCount	1.3.6.1.4.1.18.3.5.3.2.7.11.1.8	Counter	read-only	Number of packets mapped over this interface from the global to the local network.'
CTR wfNatIntfPktDropCount	1.3.6.1.4.1.18.3.5.3.2.7.11.1.9	Counter	read-only	Number of packets dropped on this interface
wfNatSrcAddressFilterTable	1.3.6.1.4.1.18.3.5.3.2.7.12		not-accessible	Table of NAT source address filters.
wfNatSrcAddressFilterEntry	1.3.6.1.4.1.18.3.5.3.2.7.12.1		not-accessible	Information describing each of the available source address filters.
INT wfNatSrcAddressFilterDelete	1.3.6.1.4.1.18.3.5.3.2.7.12.1.1	INTEGER	read-write	Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete a source address filter entry.
INT wfNatSrcAddressFilterDisable	1.3.6.1.4.1.18.3.5.3.2.7.12.1.2	INTEGER	read-write	Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable a source address filter entry.
IP wfNatSrcAddressFilterAddress	1.3.6.1.4.1.18.3.5.3.2.7.12.1.3	IpAddress	read-only	The IP beginning address of this source address filter entry.
INT wfNatSrcAddressFilterPrefixLen	1.3.6.1.4.1.18.3.5.3.2.7.12.1.4	INTEGER	read-only	The number of contiguous bits set in the IP address mask which are used to define the address range of the entry.
INT wfNatSrcAddressFilterIndex	1.3.6.1.4.1.18.3.5.3.2.7.12.1.5	INTEGER	read-only	A unique value for this entry in wfNatSrcAddressFilterTable.
IP wfNatSrcAddressFilterNto1Addr	1.3.6.1.4.1.18.3.5.3.2.7.12.1.6	IpAddress	read-write	specifies the N-to-1 translation address used for this source address filter, otherwise set to zero.
STR wfNatSrcAddressFilterDomain	1.3.6.1.4.1.18.3.5.3.2.7.12.1.7	DisplayString	read-write	The value of this attribute specifies the Address Domain Name that this source address filter is valid for. For Unidirectional NAT this value must be 'public'
INT wfNatSrcAddressFilterTransPoolSelector	1.3.6.1.4.1.18.3.5.3.2.7.12.1.8	INTEGER	read-write	The value of this attribute selects where to get the translation address for this source address filter from. This could be either the translation Pool defined for the inbound domain or the outbound domain for the packet in question.
IP wfNatSrcAddressFilterStaticNextHop	1.3.6.1.4.1.18.3.5.3.2.7.12.1.9	IpAddress	read-write	The IP address of the next hop of this source address filter entry.
INT wfNatSrcAddressFilterUnnumCct	1.3.6.1.4.1.18.3.5.3.2.7.12.1.10	INTEGER	read-write	This Nat source address filter over the unnumbered interface.
wfNatTranslationPoolTable	1.3.6.1.4.1.18.3.5.3.2.7.13		not-accessible	Table of address ranges.
wfNatTranslationPoolEntry	1.3.6.1.4.1.18.3.5.3.2.7.13.1		not-accessible	Information describing each of the available translation pool.
INT wfNatTranslationPoolDelete	1.3.6.1.4.1.18.3.5.3.2.7.13.1.1	INTEGER	read-write	Create/Delete parameter. Default is created. Users perform a set operation on this object in order to create/delete a translation pool entry.
INT wfNatTranslationPoolDisable	1.3.6.1.4.1.18.3.5.3.2.7.13.1.2	INTEGER	read-write	Enable/Disable parameter. Default is enabled. Users perform a set operation on this object in order to enable/disable a translation pool entry.
IP wfNatTranslationPoolAddress	1.3.6.1.4.1.18.3.5.3.2.7.13.1.3	IpAddress	read-only	The IP beginning address of this translation pool entry.
INT wfNatTranslationPoolPrefixLen	1.3.6.1.4.1.18.3.5.3.2.7.13.1.4	INTEGER	read-only	The number of contiguous bits set in the IP address mask which are used to define the address range of the entry.
INT wfNatTranslationPoolIndex	1.3.6.1.4.1.18.3.5.3.2.7.13.1.5	INTEGER	read-only	A unique value for this entry in wfNatTranslationPoolTable.
STR wfNatTranslationPoolDomain	1.3.6.1.4.1.18.3.5.3.2.7.13.1.6	DisplayString	read-write	The value of this attribute specifies the Address Domain Name that this translation pool is valid for. For Unidirectional NAT this value must be 'public'

RFC description

Network address translation configuration and status for Wellfleet routers.

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What Is Wellfleet-NAT-MIB?

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RFC description