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NTP authentication on 3750

phil_carter
Level 1
Level 1

‎11-01-2011 03:47 AM

Hello,

Trying to apply NTP authentication to 3750 switches (layer-2 WS-C3750-24P switches) but they don't wont to work. Applying the same config to any router or 4500/6500 chassis, and NTP authenticates straight away. NTP without authentication works fine on 3750s as well...

ntp authentication-key 1 md5 <key>

ntp authenticate

ntp trusted-key 1

ntp server 10.200.11.200 key 1

Is there additional config required for 3750s? This is across different IOS versions, so doesn't look like a bug...

Thanks

Phil

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phil_carter
Level 1
Level 1

‎11-01-2011 04:00 AM

ah - you have to be careful what order you paste commands in as it removes trusted-key 1 sometimes...

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