Disabling and Excluding Signatures

You can disable signatures globally for all networks and hosts or disable signatures based on the entries in a standard IP access list. Let's first look at disabling signatures globally.

Disabling Signatures Globally

When you disable a signature globally, the router will not compare any packets to the disabled signatures. To disable a signature, you first need to know the signature number. Visit http://www.cisco.com and review the IOS Firewall IDS documentation to get this number.

The syntax to globally disable a signature is

Router(config)# ip audit signature sig-id disable

Let's assume that you have a spam-filtering application on your email server. There is no reason to keep the spam signature enabled, ...

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