Accton Technology VS4512DC - Manual (Page 53)

Simple Network Management Protocol
3-23
Filtering Addresses for SNMP Client Access
The switch allows you to create a list of up to 16 IP addresses or IP address groups
that are allowed access to the switch via SNMP management software.
Command Usage
• To specify the clients allowed SNMP access, enter an IP address along with a
subnet mask to identify a specific host or a range of valid addresses. For
example:
- IP address 192.168.1.1 and mask 255.255.255.255 –
Specifies a valid IP address of 192.168.1.1 for a single client.
- IP address 192.168.1.1 and mask 255.255.255.0 –
Specifies a valid IP address group from 192.168.1.0 to 192.168.1.254.
• IP filtering only restricts management access for clients running SNMP
management software such as HP OpenView. It does not affect management
access to the switch using the web interface or Telnet.
• The default setting is null, which allows all IP groups SNMP access to the
switch. If one or more IP addresses are configured, IP filtering is enabled and
only addresses listed in this table will have SNMP access.
Command Attributes
• IP Filter List – Displays a list of the IP address/subnet mask entries currently
configured for SNMP access.
• IP address – Specifies a new IP address to add to the IP Filter List.
• Subnet Mask – Specifies a single IP address or group of addresses. If the IP is
the address of a single management station, set the mask to 255.255.255.255.
Otherwise, an IP address group will be specified by any other mask.
Web – Click SNMP, IP Filtering. To add a client, enter the new address, the subnet
mask for a node or an address range, and then click “Add IP Filtering Entry.”