Spectracom SecureSync User Reference Manual page 134

3.4 Network Time Protocol (NTP)
3.
The NTP Access Restrictions Status window will display:
4.
The NTP Access Restrictions pop-up window will display:
118
To or an access restriction, click the PLUS icon or the Change button,
ADD EDIT
respectively, and proceed to the next step below.
To DELETE an access restriction, click the corresponding Delete button, and con-
firm by clicking OK.
Fill in the fields:
Restriction Type —Choose either Allow or Deny.
If you select "Deny", the configured portion of the network will not have NTP
access to SecureSync, but the rest of the network will have access to
SecureSync. If you select "allow", the configured portion of the network will
have NTP access to SecureSync, but the rest of the network will not have
access to SecureSync.
IP Version —Choose IPv4 or IPv6
IP Address —Enter the appropriate hostname.
Subnet Mask —Enter the appropriate IP mask.
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3 SecureSync User Reference Guide Rev. 18