NETGEAR GS748TNA, GS748TS-100NAS user manual Enabling Switch Management using Snmp

GS748T Software User Manual

Enabling Switch Management using SNMP

SNMP (Simple Network Management Protocol) is a transport protocol used for network management. The protocol is used in communication between a Manager—the management station—and an agent within the managed device, in this case your switch. The Manager polls the agent which responds by returning data from the Management Information Bases (MIBs) that it maintains on the managed device to indicate its status. An agent can return Traps to the Manager, Traps are messages that alert the manager to conditions that may need attention. Managers and Agents work within Communities which are defined to confine messaging within named groups. An agent only responds to requests from Managers within its community.

The SNMP page enables you to limit the IP addresses from which the MIBs of the switch can be accessed and to which IPs the switch sends SNMP traps. The switch only responds to requests from management computers whose IP addresses are carried in a list. This list also holds Privilege information that controls which IPs have read-only or read-write access. You can also select the traps which the switch sends to the hosts from the following trap events. An “Admin” field must be set to “Enable” to allow management host communication.

Trap Events are indicated in 3 columns:

•T1: Authentication fail - The switch generates an SNMP trap when a host tries to gain access to the switch but the host's IP is not in the SNMP host table.

•T2: Device bootup - The switch generates an SNMP trap when it reboots.

•T3: Link Up/Down - The switch generates an SNMP trap when one of its ports changes its link status.

To enable management from an SNMP Manager:

1.From the main Navigation Pane menu, select:

Switch → Advanced → SNMP; the switch configuration utility displays the following screen.

4-18 Configuring the Switch

v2.0, April 2007