Dell Force10 S4820T FTOS Command Reference Guide - Page 1483
ntp authenticate, ntp authentication-key
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Command History Version 8.3.19.0 Version 8.3.7.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.0 Introduced on S4820T Introduced on S4810 Support added for S-Series Support added for C-Series Introduced for E-Series ntp authenticate c e s Enable authentication of NTP traffic between the switch and the NTP time serving hosts. Syntax Defaults Command Modes Command History Usage Information Related Commands ntp authenticate To disable NTP authentication, enter no ntp authentication. Not enabled. CONFIGURATION Version 8.3.19.0 Version 8.3.7.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.0 Introduced on S4820T Introduced on S4810 Support added for S-Series Support added for C-Series Introduced for E-Series You also must configure an authentication key for NTP traffic using the ntp authentication-key command. ntp authentication-key ntp trusted-key Configure authentication key for NTP traffic. Configure a key to authenticate ntp authentication-key c e s Specify a key for authenticating the NTP server. Syntax ntp authentication-key number md5 [0 | 7] key Parameters number md5 Specify a number for the authentication key. Range: 1 to 4294967295. This number must be the same as the number parameter configured in the ntp trusted-key command. Specify that the authentication key will be encrypted using MD5 encryption algorithm. System Time and Date | 1483
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