All MIBs › IP-NAT-MIB › ipNatSessDirection
ipNatSessDirection
Module: IP-NAT-MIB
OID (symbolic): IP-NAT-MIB::ipNatSessDirection
OID (numeric): 1.3.6.1.4.1.429.4.78.2.1.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The direction of the packet that initiated the flow associated with this NAT session.
What is ipNatSessDirection?
This field reports whether the packet that initiated this NAT session was inbound or outbound relative to the device. Admins use this to distinguish sessions originated from inside the network versus those coming from outside, useful when auditing for unexpected inbound NAT mappings. For example, a value of inbound(2) on a session an admin didn't expect could indicate an externally initiated connection that needs investigating.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.429.4.78.2.1.6 snmpwalk -v2c -c public <target> IP-NAT-MIB::ipNatSessDirection
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.429.4.78.2.1.6.1 snmpget -v2c -c public <target> IP-NAT-MIB::ipNatSessDirection.1
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OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.429 | usr | ANIC-MIB |
| 1.3.6.1.4.1.429.4 | common | HDR2-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.429.4.78 | usripNat | IP-NAT-MIB |
| 1.3.6.1.4.1.429.4.78.2 | ipNatSessTable | IP-NAT-MIB |
| 1.3.6.1.4.1.429.4.78.2.1 | ipNatSessEntry | IP-NAT-MIB |
| 1.3.6.1.4.1.429.4.78.2.1.6 | ipNatSessDirection | IP-NAT-MIB |