All MIBs › CISCO-VTP-MIB › vtpAuthPassword
vtpAuthPassword
Module: CISCO-VTP-MIB
OID (symbolic): CISCO-VTP-MIB::vtpAuthPassword
OID (numeric): 1.3.6.1.4.1.9.9.46.1.9.1.1.1
Node type: OBJECT-TYPE
Type: SnmpAdminString
Access: read-write
Description: By default, this object has a value of a zero-length character string and is considered to be not configured.
The device uses the password to generate the secret key. It can be stored in the configuration in plain text or hidden from the configuration. If a VTP server intends to modify the database's configuration in the domain but the password was hidden from the configuration, the same password (vtpDatabaseTakeOverPassword) as the hidden one has to be provided.
When this object is set alone, vtpAuthPasswordType is set to plaintext(1) automatically by the system. Setting this object to a zero length character string resets the password to its default value and the password is considered as not configured.
This object is not allowed to be set at the same time when vtpAuthSecretKey is set.
When the vtpAuthPasswordType is hidden(2), this object will return a zero-length character string when read.
What is vtpAuthPassword?
This read-write string configures the VTP domain authentication password, which by default is an unconfigured zero-length string, and which the device uses to derive the secret key that signs VTP advertisements. Setting a real password here is how an admin ensures that only devices sharing the same domain password can issue trusted VTP configuration changes, protecting against rogue devices altering VLAN databases. For example, an admin might set this to a shared secret like "corp-vtp-2024" on every switch in a management domain so that VTP advertisements are mutually trusted.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.9.1.1.1 snmpwalk -v2c -c public <target> CISCO-VTP-MIB::vtpAuthPassword
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.9.1.1.1.1 snmpget -v2c -c public <target> CISCO-VTP-MIB::vtpAuthPassword.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.9.9.46.1.9.1.1.1.1 s <value>
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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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.46 | ciscoVtpMIB | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1 | vtpMIBObjects | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.9 | vtpAuthentication | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.9.1 | vtpAuthenticationTable | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.9.1.1 | vtpAuthEntry | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.9.1.1.1 | vtpAuthPassword | CISCO-VTP-MIB |