ntp server
   
   
      
      
      Add an IP address or fully qualified domain name (FQDN) for a Network Time Protocol (NTP)
         server or modify existing NTP server parameters. You can configure a maximum of 20 NTP
         servers.
    
      Syntax
         
         
            - 
               default ntp server
                     WORD<1-110> [auth-enable] [authentication-key] [enable]
                
- 
               no ntp server
                     WORD<1-110> [auth-enable] [enable]
                
- 
               ntp server
                     WORD<1-110> [auth-enable] [authentication-key <0-65534>]
                     [enable]
                
Command Parameters
         
         
            
               - auth-enable
- Activates MD5 or SHA1
                  authentication on this NTP server. Without this option, the NTP server will not
                  have any authentication by default.
- authentication-key <0-65534>
- Specifies the key ID value used to
                  generate the MD5 or SHA1 digest for the NTP server. The default authentication key
                  is 0, which indicates disabled authentication.
- enable
- Activates the NTP server.
- WORD<1-110>
- Specifies the IPv4 address, IPv6
                  address, or FQDN of the NTP server.
Default
         
         The default configuration does not use MD5 authentication. 
      
      Command Mode
         
         Global Configuration