2.7.8.11 Ntp Expert Mode - Spectracom VersaSync User Manual

2.7 Configuring Network Settings
4.
The NTP Access Restrictions window will display:
5.
Click the Submit button.

2.7.8.11 NTP Expert Mode

Advanced NTP configuration is possible via the
ectly into the
102
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 VersaSync, but the rest of the network will have access to Ver-
saSync. If you select "allow", the configured portion of the network will
have NTP access to VersaSync, but the rest of the network will not have
access to VersaSync. By default, VersaSync allows all IPv4 and IPv6 con-
nections.
IP Version —Choose IPv4 or IPv6
IP Address —Enter the appropriate hostname.
Subnet Mask —Enter the appropriate IP mask.
Require Authentication (checkbox)—Check this box if you want the addi-
tional security of authorized access. VersaSync to accept only authen-
ticated requests (MD5 or Autokey) from this user or network segment.
Allow NTP Queries (checkbox)—Check this box if you want to allow
external NTP queries into VersaSync services.
file (the syntax is similar to the one used with CISCO routers).
NTP.conf
NTP Expert Mode should only be utilized by advanced users, as incor-
Caution:
rectly altering the
NTP.conf
figured as an input reference, VersaSync could lose synchronization).
NTP Expert Mode , which allows you to write dir-
file can cause NTP to stop working (if NTP is con-
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2 VersaSync User Manual Rev. 6.0