
Parameter Descriptions
114071 Rev. A A-17
Parameter: Filter Type
Path: Protocols > Global Protocols > NTP > Access
Default: Restrict
Options: Restrict
| Prefer
Function: Specifies that you want to restrict specific time servers from sending NTP
packets to the NTP client. The NTP client will filter packets from a time server
whose IP address you have restricted based on its source IP address and source
subnet mask.
Instructions: Specify Restrict or Prefer in the Filter Type Selection box.
When you specify Prefer, NTP disables filtering on a specific time server’s IP
address or a range time server’s IP addresses.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.17.2.1.2
Parameter: Access IP Mask
Path: Select Protocols > Global Protocols > NTP > Access
Default: None
Options: 0.0.0.0 or any valid IP address
Function: Specifies a IP subnet mask address to filter NTP time stamps based on a source
subnet. NTP drops all packets sent from a specific time server on a specified
subnet.
Instructions: Specify the IP subnet mask address of the filter in the IP Mask Selection box in
the NTP Access Configuration window.
MIB Object ID: 1.3.6.1.4.1.18.3.5.3.17.2.1.4
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