IP-NAT-MIB :: ipNatSessSrcPort

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › IP-NAT-MIB › ipNatSessSrcPort

ipNatSessSrcPort

Module: IP-NAT-MIB

OID (symbolic): IP-NAT-MIB::ipNatSessSrcPort

OID (numeric): 1.3.6.1.4.1.429.4.78.2.1.7

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: For UDP and TCP NAT sessions, the source port number of the packet that initiated the flow associated with this NAT session. For neither UDP nor TCP NAT sessions this value is 0.

What is ipNatSessSrcPort?

This field reports the source port number of the packet that started this NAT session, or 0 if the session isn't TCP or UDP. Admins use this along with the source IP to precisely identify which application or connection on the source host generated this session. For example, a source port of 51234 alongside a TCP protocol value would identify a typical ephemeral client-side port for an outbound connection.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.429.4.78.2.1.7
snmpwalk -v2c -c public <target> IP-NAT-MIB::ipNatSessSrcPort

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.429.4.78.2.1.7.1
snmpget -v2c -c public <target> IP-NAT-MIB::ipNatSessSrcPort.1

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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
1.3.6.1.4.1.429usrANIC-MIB
1.3.6.1.4.1.429.4commonHDR2-MIB
Numeric OIDNameModule
1.3.6.1.4.1.429.4.78usripNatIP-NAT-MIB
1.3.6.1.4.1.429.4.78.2ipNatSessTableIP-NAT-MIB
1.3.6.1.4.1.429.4.78.2.1ipNatSessEntryIP-NAT-MIB
1.3.6.1.4.1.429.4.78.2.1.7ipNatSessSrcPortIP-NAT-MIB