[c-nsp] acl to block traffic one way

Roland Dobbins rdobbins at cisco.com
Sat Mar 24 22:42:41 EST 2007


On Mar 24, 2007, at 8:35 PM, Roland Dobbins wrote:

> My $.02, FWIW.

Also, when you copy an ACL over to the device, the first line in the  
file should be 'no ip access-list foo', so that your newly-updated  
ACL completely replaces the older one.

And if you really need to do ACL logging (NetFlow is often a better  
alternative, where/when possible), be sure you understand the CPU  
impact of the logging and make use of the logging rate-limiter  
commands so as to reduce the CPU impact.

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Roland Dobbins <rdobbins at cisco.com> // 408.527.6376 voice

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