SNMP Community Configuration

Access rights are managed by defining communities on the SNMPv1, 2 Community page. When the community names are changed, access rights are also changed. SNMP (Simple Network Management Protocol) Communities are defined only for SNMP v1 and SNMP v2.

Use the SNMP Community Configuration page to enable SNMP and Authentication notifications.

To access this page, click System > Advanced Configuration > SNMP > Community in the navigation menu.

Use the buttons to perform the following tasks:

To add a community, click Add and configure the desired settings.
To change information for an existing community, select the checkbox for the entry and click Edit.
To delete a configured community from the list, select the checkbox for each entry to delete and click Remove.

Community Configuration Fields

Field	Description
Community Name	Contains the predefined and user-defined community strings that act as a password and are used to authenticate the SNMP management station to the device. A community string can contain a maximum of 20 characters. By default, the options available in the menu are as follows: public: This SNMP community has Read Only privileges and its status set to enable. private: This SNMP community has Read/Write privileges and its status set to enable.
Community Access	Specifies the access control policy for the community.
Client IP Address	Taken together, the Client IP Address and Client IP Mask denote a range of IP addresses from which SNMP clients may use that community to access this device. If either (IP Address or IP Mask) value is 0.0.0.0, access is allowed from any IP address. Otherwise, every client's IP address is ANDed with the mask, as is the Client IP Address, and, if the values are equal, access is allowed. For example, if the Client IP Address and Client IP Mask parameters are 192.168.1.0/255.255.255.0, then any client whose IP address is 192.168.1.0 through 192.168.1.255 (inclusive) will be allowed access. To allow access from only one station, use a Client IP Mask value of 255.255.255.255, and use that machine's IP address for Client IP Address.
Client IP Mask	Along with the Client IP Address, the Client IP Mask denotes a range of IP addresses from which SNMP clients may use that community to access this device.
Access Mode	Specify the access level for this community: Read-Only: The Community has read only access to the MIB objects configured in the view. Read-Write: The Community has read/modify access to the MIB objects configured in the view.
Status	Specify the status of this community: Enable: The community is enabled, and the Community Name must be unique among all valid Community Names or the set request will be rejected. Disable: The Community is disabled and the Community Name becomes invalid.

If you change any of the parameters, click Submit to apply the changes to the system. If you want the switch to retain the new values across a power cycle, you must save the configuration.