Chapter 8 System

The next figure illustrates an SNMP management operation.

Figure 45 SNMP Management Mode

A SNMP managed network consists of two main types of component: agents and a manager.

An agent is a management software module that resides in a managed device (the NWA). An agent translates the local management information from the managed device into a form compatible with SNMP. The manager is the console through which network administrators perform network management functions. It executes applications that control and monitor managed devices.

SNMP allows a manager and agents to communicate for the purpose of accessing information such as packets received, node port status, etc.

SNMP v3 and Security

SNMP v3 enhances security for SNMP management. SNMP managers can be required to authenticate with agents before conducting SNMP management sessions.

Security can be further enhanced by encrypting the SNMP messages sent from the managers. Encryption protects the contents of the SNMP messages. When the contents of the SNMP messages are encrypted, only the intended recipients can read them.

Remote Management Limitations

Remote management over LAN or WLAN will not work when:

•You have disabled that service in one of the remote management screens.

•The IP address in the Secured Client IP Address field does not match the client IP address. If it does not match, the NWA will disconnect the session immediately.

•You may only have one remote management session running at one time. The NWA automatically disconnects a remote management session of lower priority when another remote management session of higher priority starts. The priorities for the different types of remote management sessions are as follows:

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NWA1000 Series User’s Guide