Block, allow, or generate alerts about Diameter chunks to
filter Diameter applications and messages. The Diameter base protocol,
RFC 6733, is an SCTP application (an upper-layer protocol) that
provides authentication, authorization, and accounting (AAA) in
roaming and local environments. Diameter replaces other AAA protocols,
such as TACACS and RADIUS, to provide more advanced authentication
capabilities. Diameter applications run on top of the Diameter base
protocol and have an IANA-assigned application ID. Each Diameter
command and corresponding answer share a Command Code.