D-Link DWL-3600AP Users Manual - Page 97

Unified Access Point Administrator's Guide Configuring SNMP on the Access Point Table 36: SNMP Settings (Cont.) Field Description 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. The valid range is 1‐65535. Note: This is a global SNMP parameter that applies to SNMPv1, SNMPv2c, and SNMPv3. Allow SNMP set requests You can choose whether or not to allow SNMP set requests on the AP. Enabling SNMP set requests means that machines on the network can execute configuration changes via the SNMP agent on the AP to the D‐Link System MIB. To enable SNMP set requests, click Enabled. To disable SNMP set requests, click Disabled. Read‐write community name (for permitted SNMP set operations) If you have enabled SNMP set requests you can set a read‐write community name. The valid range is 1‐256 characters. Setting a community name is similar to setting a password. Only requests from the machines that identify themselves with this community name will be accepted. The community name can be in any alphanumeric format. Restrict the source of SNMP requests to only the designated hosts or subnets Hostname, address or subnet of Network Management System 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. Specify the IPv4 DNS hostname or subnet of the machines that can execute get and set requests to the managed devices. The valid range is 1‐256 characters. 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 address/mask_length where address is an IP address and mask_length is the number of mask bits. Both formats address/mask and address/ mask_length are supported. Individual hosts can be provided 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 identified 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. IPv6 Hostname or IPv6 Specify the IPv6 DNS hostname or subnet of the machines that can execute get and subnet of Network set requests to the managed devices. Management System D-Link November 2011 Unified Access Point Administrator's Guide Page 97