Cisco TrustSec User Manual

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Cisco TrustSec Configuration Guide
OL-22192-02
Chapter 3 Configuring Identities, Connections, and SGTs
Configuring Credentials and AAA for a Cisco TrustSec Non-Seed Device
Note You must also configure the Cisco TrustSec credentials for the switch on the Cisco Identity Services
Engine, or the Cisco Secure ACS.
Configuration Examples for Non-Seed Device
Catalyst 6500 example:
Router# cts credentials id Switch2 password Cisco123
Router# configure terminal
Router(config)# aaa new-model
Router(config)# aaa authentication dot1x default group radius
Router(config)# aaa authorization network MLIST group radius
Router(config)# aaa accounting dot1x default start-stop group radius
Router(config)# radius-server vsa send authentication
Router(config)# dot1x system-auth-control
Router(config)# exit
Catalyst 3850/3650 example for access VLAN, where propagate SGT is not the default:
switch(config-if)# switchport access vlan 222
switch(config-if)# switchport mode access
switch(config-if)# authentication port-control auto
switch(config-if)# dot1x pae authenticator
switch(config-if)# cts dot1x
switch(config-if)# propagate sgt
Step 7
Router(config)# radius-server vsa send
authentication
Configures the switch to recognize and use
vendor-specific attributes (VSAs) in RADIUS
Access-Requests generated by the switch during the
authentication phase.
Step 8
Router(config)# dot1x
system-auth-control
Globally enables 802.1X port-based authentication.
Step 9
Router(config)# exit
Exits configuration mode.
Command Purpose

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.