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Disabling ICMP timestamp responses

Posted on 2009-05-04
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Last Modified: 2013-11-29
Hey all

Hope this will be quick one.

Does anyone know how to disable ICMP timestamp replies on a Cisco 3750?

Thats it.

Thanks
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Question by:atlas_shuddered
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woolmilkporc earned 2000 total points
ID: 24302771
Hi,

Use ACLs to block ICMP types 13 (TIMESTAMP) and 14 (TIMESTAMP REPLY).
For example:

access-list [nnn] deny icmp any any 13
access-list [nnn] deny icmp any any 14  
HTH
wmp
 
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