Simple Network Management Protocol Version 3 (SNMPv3) is an interoperable Standards- based protocol for network management. SNMPv3 provides secure access to device by a combination of authenticating and encrypting packets over the network.
The security features provided in SNMPv3 are
Message integrity Ensuring that a packet has not been tampered with in-transit.
Authentication Determining the message is from a valid source.
Encryption Scrambling the contents of a packet prevent it from being seen by an unauthorized source.
Before SNMPv3, all data was transmitted in the clear and subject to monitoring and alteration by unauthorized users. Version 3 supports various encryption methods. We recommend users never use DES 56-bit encryption as this is very easy to decrypt. AES 128-bit is the preferred method.
Support USM (User-based Security Model, RFC3414) for SNMPv3 .
Support View-Based Access Control Model (VACM, RFC3415) for SNMPv3.
Support Administrative Framework (RFC3411) for SNMPv3 .
Does not support notification destinations.
Does not support proxy relationships.
Does not support remotely configurable via SNMP operations.
Enable SNMP and configure SNMP parameters
Please login to the SonicWall management GUI as admin.
Navigate to MANAGE | Appliance |SNMP.
Check the box Enable SNMP.
Click in the Configure button and supply the parameters for SNMP or keep the default for general configuration.
Click OK .
Click ACCEPT .
NOTE: For the SNMP functionality, the Community name should be the same in the SonicWall and the SNMP monitoring software.
Creating SNMP User, Group & Access
Adding User with Group
Navigate toMANAGE | Appliance |SNMP, Click AddUser button under Users/Group.
User Name: NEW SNMP User(Type any friendly name which you would like to use for SNMP).
Security Level: Authentication and Privacy (Select the level which you would like to use).
Authentication Method: SHA1(Select the method which you would like to use).
Authentication Key: user12345( type the key which you would like to use But it should be more than 8 characters).
Encryption Method: AES(Select the method which you would like to use).
Privacy Key: password123 (type any key which you would like to use).
Group: SNMP Group (Select the group which you would like to add this user).
Creating Access for SNMP
Navigate to MANAGE | Appliance |SNMP ClickAdd button underAccess.
Access Name: New SNMP Access (Type any name which you would like to use).
Read View: root .
Master SNMPv3 Group: SNMP Group (Select any group which you would like to use).
Access Security Level: Authentication and Privacy (Select the level of security for SNMP).
Click OK .
Enable SNMP on the SonicWall interface
Navigate to MANAGE| Network | Interfaces and click on the configure button in front of the LAN & WAN interface.
LAN Interface (X0)
In the Management' section of Edit X0 interface window, check the SNMP' box.
Click OK .
WAN Interface (X1)
In the Management section of Edit X1 interface window, check the SNMP box.
Configuring SNMP & adding SonicWall unit in PRTG Monitoring software