Simple Network Management Protocol (SNMP)

Start/stop control of SNMP agents, community password configuration, access to MIBs, and configuration of SNMP Trap destinations is provided through the Samsung AP as described below.


Item	Description
SNMP Use/Not SNMP Use	You can select whether to use SNMP in a network. Default is SNMP is not used. To enable SNMP, click Enabled. To disable SNMP, click Disabled. You must click Update to save your settings. Note: If you do not enable SNMP, all remaining fields on the SNMP page will be disabled.
Read-only community name for permitted GETs	Enter a read-only community name. The community name, as defined in SNMPv2c, acts as a simple authentication mechanism to restrict the machines on the network that can request data to the SNMP agent. The name functions as a passwordm and the request is assumed to be authentic if the sender knows the password. The community name can be in any alphanumeric format.
Port number the SNMP agent will listen to	By default an SNMP agent only listens to requests from port 161. However, you can configure this so the agent listens to requests on another port. Enter the port number on which you want the SNMP agents to listen to requests.
Restrict the source of SNMP requests to only the designated hosts or subnets	You can restrict the source of permitted SNMP requests. To restrict the source of permitted SNMP requests, click Enabled. To permit any source submitting an SNMP request, click Disabled.
Hostname or subnet of Network Management System	Set DNS host name or subnet of a device that can perform GET/SET request. As with community names, this provides a level of security on SNMP settings. The SNMP agent will only accept requests from the hostname or subnet specified here. To specify a subnet, enter one or more subnetwork address ranges in the form AddressRange/MaskLength where AddressRange is an IP address and MaskLength is the number of mask bits. Both formats NetAddress/NetMask and NetAddress/MaskLength are supported. Individual hosts can be priovided for this, i.e. I.P Address or Hostname. For example, if you enter a range of `192.168.1.0/24` this specifies a subnetwork with address `192.168.1.0` and a subnet mask of `255.255.255.0`. The address range is used to specify the subnet of the designated NMS. Only machines with IP addresses in this range are permitted to execute GET and SET requests on the managed device. Given the example above, the machines with addresses from `192.168.1.1` through `192.168.1.254` can execute SNMP commands on the device. (The address indentified by suffix .0 in a subnetwork range is always reserved for the subnet address, and the address identified by .255 in the range is always reserved for the broadcast address). As another example, if you enter a range of `10.10.1.128/25` machines with IP addresses from `10.10.1.129` through `10.10.1.254` can execute SNMP requests on managed devices. In this example, `10.10.1.128` is the network address and `10.10.1.255` is the broadcast address. 126 addresses would be designated.

SNMP Traps Setting

SNMP taps induces asynchronous message exchange from SNMP devices such as SMT-R2000 to selected host. If monitoring devices that have many Network Management Systems (NMSs), sending query to all devices regularly is not effective. By activating SNMP event trap of AP, each device can directly send a message related with network event to a selected host on NMS or SNMP Manager. Network event includes the going up or down of network interface, connection with AP or authentication failure, system power up or down, and network topology.

SNMP traps save on network resources by eliminating redundant SNMP requests.They also make it easier for SNMP Managers to troubleshoot their network. For example, if an SNMP manager is responsible for a large network that supports many devices, and each device has a large number of objects, it is impractical to request information from every object on every device. The optimum solution is for each agent on the managed device to notify the manager of any unusual events. It does this by sending a trap of the event. After receiving the event information, the manager can choose what action, if any, to take.

Item	Description
Community name for traps	Enter the global community string associated with SNMP traps. Traps sent from the device will provide this string as a community name.
Hostname	Enter the DNS host name of a computer to which you want to send SNMP trap An example of a DNS hostname is: `snmptraps.Samsung Electronics.com` Since SNMP traps are sent randomly from the SNMP agent, it makes sense to specify where exactly the traps should be sent. You can add up to a maximum of three DNS hostnames. Ensure you select the Enabled checkbox beside the appropriate hostname.

Simple Network Management Protocol (SNMP)

SNMP Setting

SNMP Traps Setting

Update Settings