Address filter element. Optional in <rule> and <pathrule> elements.
Overrides attribute::ClientAddressFilter when the rule is applied.
Comma-separated list of IP addresses. Each individual address may include an optional netmask suffix to allow specification of IP address ranges. See attribute::ClientAddressFilter for details.
Access to this image catalog can be restricted to one or more specific client IP addresses by specifying them in an <addressfilter> element. A "request refused" error is returned to the client if the client IP address is not matched.
Access is not restricted if <addressfilter> is empty or not specified.
If the <expression> in the <rule> element is absent or empty, the <addressfilter> is applied to all requests.