Cisco TrustSec User Manual

Glossary
GL-3
Cisco TrustSec Configuration Guide
OL-22192-01
Supplicant
In TrustSec, a network device without a direct connection to the Cisco Secure ACS which is requesting
TrustSec authentication from an authenticated TrustSec network device (an authenticator) NDAC is the
process by which the supplicant device is admitted into the TrustSec network.
SXP
SGT Exchange Protocol. Allows devices with SXP support to build a source IP-to-SGT binding table,
and then transfers the table to TrustSec hardware-capable devices through an out-of-bound TCP
connection using MD5-based authentication.
T
TrustSec
Trusted Security. Same as Cisco Trusted Security (CTS).
TrustSec
Hardware-capable
A network device that can tag traffic with SGTs, enforce SGACLs, and establish a MACSec connection
with a TrustSec peer.
TrustSec
Software-capable
A network device that can establish NDAC and SXP connections with a TrustSec peer.

Cisco TrustSec Specifications

General

Category	Network Security
Functionality	Provides role-based access control, network segmentation, and policy enforcement.
Key Components	Security Group Tags (SGT), Security Exchange Protocol (SXP).
Authentication Methods	802.1X, MAC Authentication Bypass (MAB), Web Authentication
Security Group Tagging (SGT)	Assigns security group tags to users and devices for identity-based segmentation.
Security Exchange Protocol (SXP)	A protocol used to propagate SGT information across network devices.
Policy Enforcement	Enforces security policies based on SGTs and SGACLs.
Benefits	Enhanced security, simplified policy management, and improved compliance.
Encryption	Supports encryption for data in transit through IPsec and MACsec.
Scalability	Scalable to large enterprise networks with thousands of devices.
Compatibility	Compatible with a wide range of Cisco network devices.
Description	Cisco TrustSec is a security architecture framework designed to build secure networks. It uses identity-based access control to segment the network and enforce policies based on user roles and device types, rather than relying solely on IP addresses.