Attributes of APNIC Whois Database filter-set objects

Using filter-set objects

The filter-set object is an advanced routing object that can be used by more complex networks to filter imported and exported routes.

For more information, see RFC 2622, section 5.4.

To view the filter-set object, see APNIC Whois Database object templates.

The following describe the mandatory and optional attributes in a filter-set object.

Note: Attributes marked with an asterisk (*) now support four-byte AS number syntax. For more information see the ASN resource guide.

Attribute	Function	Description
filter-set*	Technical	The name of the filter set. The filter-set must begin with 'FLTR-'. Example: FILTR-EXAMPLENET
descr	Administrative	A short description related to the object's purpose. Example: Filter local community routes
tech-c	Administrative	The NIC-handle of a technical person or role object. In the web interface, the tech-c attribute contains a link to the person or role object to which the NIC-handle belongs.
admin-c	Administrative	The NIC-handle of an on-site contact person or role object. In the web interface, the admin-c attribute contains a link to that person or role object to which the NIC-handle belongs.
mnt-by	Administrative	The identifier of a registered mntner object used for authorisation and authentication. In the web interface, the mnt-by attribute contains a link to the specified mntner.
changed	Administrative	The email address of who last updated the database object and the date it occurred. Every time a change is made to a database object, this attribute will show the email address of the person who made those changes. This is not to be used as a contact address.
source	Administrative	The name of the database from which the data was obtained.

Attribute	Function	Description
filter*	Technical	The policy filter of the set. The policy filter is a logical expression which, when applied to a set of routes, returns a subset of those routes. Example: filter: (AS1 or fltr-foo) and <AS2> Important: The filter and mp-filter attributes cannot appear together within the same object. For more information, see RFC 2622, section 5.4.
mp-filter*	Technical	Logical expression which when applied to a set of IPv4 or IPv6 routes returns a subset of these routes. For more information, see RFC 4012, section 2.5.2. The filter and mp-filter attributes cannot appear together within the same object. New in Whois v3.2.
remarks	Administrative	General remarks. May include a URL or email address.
notify	Administrative	The e-mail address to which notifications of changes to an object will be sent. When this attribute contains dbmon@apnic.net, it means APNIC staff are notified of changes to the object.
mnt-lower	Administrative	Sometimes there is a hierarchy of maintainers. In these cases, mnt-lower is used as well as mnt-by. New in Whois v3.2.