SNMP Versions
SNMPv1
- Cleartext
- Uses a community string for a basic password
Changing the equipment
- Set Request
Getting outputs
- Get Request
- GetNext
Receiving outputs
- Get Response
- Trap
SNMPv2
- Cleartext
- Uses a community string for a basic password
New message types
- Get Bulk (get lots of things)
- Inform Request (acknowledge this bad thing happening)
SNMPv3
This is the recommended version to make changes via SNMP.
| Security Level | Authentication | Encryption | Credentials Required |
|---|---|---|---|
| NoAuthNoPriv | None | None | Username only |
| AuthNoPriv | Yes | None | Username + Auth password |
| AuthPriv | Yes | Yes | Username + Auth + Priv password |