All MIBs › SNMP-SSH-TM-MIB › snmpSshtmSessionNoSubsystems
snmpSshtmSessionNoSubsystems
Module: SNMP-SSH-TM-MIB
OID (symbolic): SNMP-SSH-TM-MIB::snmpSshtmSessionNoSubsystems
OID (numeric): 1.3.6.1.2.1.189.1.1.6
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of times an openSession() request failed to open a session as an SSH client due to inability to connect to the requested subsystem.
What is snmpSshtmSessionNoSubsystems?
This Counter32 counts the number of times an openSession() request failed because the SSH client could not connect to the requested SSH subsystem (the mechanism SNMP-over-SSH uses to run the SNMP protocol over the SSH channel). Admins use this to detect cases where the SSH transport and authentication succeeded but the remote server doesn't support or expose the expected SNMP subsystem. For example, an admin pointing this device at an SSH server that hasn't been configured with the 'netconf' or SNMP subsystem handler would see this counter increment on every connection attempt.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.189.1.1.6 snmpwalk -v2c -c public <target> SNMP-SSH-TM-MIB::snmpSshtmSessionNoSubsystems
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.189.1.1.6.1 snmpget -v2c -c public <target> SNMP-SSH-TM-MIB::snmpSshtmSessionNoSubsystems.1
Start monitoring SNMP agents/managers implementing the SSH transport model (RFC 5592) (session open/close/auth-failure statistics) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SNMP-SSH-TM-MIB::snmpSshtmSessionNoSubsystems OID value, configure state conditions and alerts, and monitor any SNMP agents/managers implementing the SSH transport model (RFC 5592) (session open/close/auth-failure statistics) from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.189 | snmpSshtmMIB | SNMP-SSH-TM-MIB |
| 1.3.6.1.2.1.189.1 | snmpSshtmObjects | SNMP-SSH-TM-MIB |
| 1.3.6.1.2.1.189.1.1 | snmpSshtmSession | SNMP-SSH-TM-MIB |
| 1.3.6.1.2.1.189.1.1.6 | snmpSshtmSessionNoSubsystems | SNMP-SSH-TM-MIB |