Hi Mohamed ,
use below link for configurations support . which version of SNMP you are running on your OP Manager
Table 33-1 SNMP Security Models and Levels
Model | Level | Authentication | Encryption | Result |
---|
SNMPv1 | noAuthNoPriv | Community string | No | Uses a community string match for authentication. |
SNMPv2C | noAuthNoPriv | Community string | No | Uses a community string match for authentication. |
SNMPv3 | noAuthNoPriv | Username | No | Uses a username match for authentication. |
SNMPv3 | authNoPriv | Message Digest 5 (MD5) or Secure Hash Algorithm (SHA) | No | Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. |
SNMPv3 | authPriv (requires the cryptographic software image) | MD5 or SHA | Data Encryption Standard (DES) or Advanced Encryption Standard (AES) | Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. Allows specifying the User-based Security Model (USM) with these encryption algorithms: • DES 56-bit encryption in addition to authentication based on the CBC-DES (DES-56) standard. • 3DES 168-bit encryption • AES 128-bit, 192-bit, or 256-bit encryption |
You must configure the SNMP agent to use the SNMP version supported by the management station. Because an agent can communicate with multiple managers, you can configure the software to support communications using SNMPv1, SNMPv2C, or SNMPv3.
Let me know , if you are looking for any support on this .
HTH
Sandy