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When rebuilding the ACL especially long ones, it can take a few seconds
before the final 'permit ip any any' entry makes it across to allow
traffic. By default fastiron ACL will deny all un-matched traffic.
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With regards to switching between ACL's, I guess letting bad traffic
past for a brief moment is better than denying all traffic during that time. I was just
hoping there was a better way. Oh well.
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<br />
~Randy
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<br /><font size="2"><b>On Mon, 12 Sep 2011 12:02:38 -0400, Scott T. Cameron wrote</b>
<br />>
I'm not following you when you say "implicit deny". If you remove
the actual line where you apply the ACL to an interface, it will permit all
traffic. Then you can go make changes to the ACL and re-apply.
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<br />>
In the worst case, you might have unintentional traffic pass for a couple of
seconds.
<br />>
<br />> If you really want to have the least window possible,
use a different ACL ID and switch.
<br />>
<br />> Scott
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