Configure Ntp Authentication - Dell Force10 MXL Blade Configuration Manual

To configure an IP address as the source address of NTP packets, use the following command in
CONFIGURATION mode:
Command Syntax
ntp source interface
To view the configuration, use the

Configure NTP Authentication

NTP authentication and the corresponding trusted key provide a reliable means of exchanging NTP
packets with trusted time sources. NTP authentication begins when the first NTP packet is created
following the configuration of keys. NTP authentication in FTOS uses the MD5 algorithm and the key is
embedded in the synchronization packet that is sent to an NTP time source.
To configure NTP authentication, follow these steps.
Step Command Syntax
1 ntp authenticate
ntp authentication-key number md5 key
2
3 ntp trusted-key number
To view the NTP configuration, use the
(Figure 34-5).
Figure 34-5
600
| System Time and Date
Command Mode
CONFIGURATION
show running-config ntp
shows an encrypted authentication key. All keys are encrypted.
Purpose
Enter the following keywords and slot/port or number information:
• For a loopback interface, enter the keyword loopback followed by a
number between 0 and 16383.
• For a port channel interface, enter the keyword lag followed by a
number from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port information.
• For a VLAN interface, enter the keyword vlan followed by a number
from 1 to 4094.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE
followed by the slot/port information.
command in EXEC privilege mode.
Command Mode
CONFIGURATION
CONFIGURATION
CONFIGURATION
command in EXEC privilege mode
show running-config ntp
Purpose
Enable NTP authentication.
Set an authentication key. Configure the
following parameters:
Range 1 to 4294967295. This
number:
must be the same as the
number
the command.
ntp trusted-key
Enter a text string. This text string is
key:
encrypted.
Define a trusted key. Configure a number
from 1 to 4294967295.
The must be the same as the
number
used in the
number ntp authentication-key
command.
in
number