The ip state engine is a stateless filter that passes uni-directional IP traffic of a particular IP type. The data can only flow in the forward direction (From to To address). This state engine is supplied to provide backwards compatibility with the ip state engine in the SunScreen SPF-100. New service definitions should use either the ipfwd, iptunnel, or ipmobile state engines.
The discriminator for the ip state engine is the IP packet type.
The ip state engine has no parameters.