IBM Tivoli and Cisco manual Logging service, Posture plug-in

Figure 3-3shows the Cisco Trust Agent architecture, followed by a brief explanation of the components that make up the Cisco Trust Agent.

	Client Application
	(EXT-Service)	Application supplied
		Posture Credential
		Providers
	EXT-Service
	Posture-Plug-in
Logging	EAP	Posture
Service	Methods	Plug-in
	Cisco Trust Agent
	Service
	NAD
	Device

Figure 3-3 Cisco Trust Agent architecture

Cisco Trust Agent service Responds to network requests for client system

posture information.

Logging service	Logs event information received from Cisco Trust
	Agent components and from NAC-compliant
	applications into log files.
Posture plug-in	Provides the capability to collect information such as
	operating system type and version.

EXT-Postureplug-inRepresents an external or third-party posture plug-in. This is a communication path provided by Cisco Trust Agent software to enable system integrators to pass posture information to the Cisco Trust Agent. For IBM Integrated Security Solution for Cisco Networks, an IBM-developed posture plug-in communicates with Cisco Trust Agent and provides posture credentials.

44Building a Network Access Control Solution with IBM Tivoli and Cisco Systems