On Nov 16, 2008, at 5:22 PM, Jonathan Petersson wrote:
allow-update { !{!10/8;any;}; key update-key; };


Wouldn't this still permit any client on the 10/8 subnet to update the zones?

No. It says:

1. Deny anyone who isn't in 10/8.
2. Allow anyone using this key.

The first item in the list never says to allow 10/8, it just says to deny everyone else. The processing therefore continues to the second item; any request not matched by either rule is denied.

In other words, in ACL processing, "not no" != "yes".

Chris Buxton
Professional Services
Men & Mice

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