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60-99
User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 60 Router Device Administration
NTP Policy Page
NTP Server Dialog Box
Use the NTP Server dialog box to define the address of an NTP server that the router can use to perform
time synchronization. In addition, you can use this dialog box to define a default source interface for
NTP packets sent to this server and authentication parameters.
Navigation Path
Go to the NTP Policy Page, page 60-98, then click the Add or Edit button beneath the table.
Related Topics
• Defining NTP Servers, page 60-97
• NTP on Cisco IOS Routers, page 60-96
• Understanding Interface Role Objects, page 6-67
Enable NTP Authentication When selected, enables authentication using MD5 when connecting to
an NTP server.
When deselected, authentication is disabled.
Servers Table
IP Address The IP address of the NTP server.
Source Interface The source address for all packets sent to this NTP server. This setting
overrides the global setting defined at the top of the page.
Preferred Indicates whether this NTP server is preferred over other NTP servers
of similar accuracy.
Note By default, preferred servers are listed first in the table.
Key Number The ID number of the key used for authentication with this NTP server.
Trusted Indicates whether the authentication key defined for this NTP server is
a trusted key.
Add button Opens the NTP Server Dialog Box, page 60-99. From here you can
define an NTP server.
Edit button Opens the NTP Server Dialog Box, page 60-99. From here you can edit
the selected NTP server.
Delete button Deletes the selected NTP server from the table.
If the key defined on the server you delete is not defined on a different
NTP server, the key is also deleted.
Table 60-41 NTP Page (Continued)
Element Description