Cisco TrustSec User Manual

5-4
Cisco TrustSec Switch Configuration Guide
OL-22192-02
Chapter 5 Configuring SGACL Policies
Manually Configuring SGACL Policies
Manually Configuring SGACL Policies
A role-based access control list bound to a range of SGTs and DGTs forms an SGACL, a TrustSec policy
enforced on egress traffic. Configuration of SGACL policies are best done through the policy
management functions of the Cisco ISE or the Cisco Secure ACS. To manually (that is, locally)
configure SGACL policies, do the following:
1. Configure a role-based ACL.
2. Bind the role-based ACL to a range of SGTs.
Note An SGACL policy downloaded dynamically from the Cisco ISE or Cisco ACS overrides any conflicting
manually configured policy.
Manually Configuring and Applying IPv4 SGACL Policies
Detailed Steps for Catalyst 3850
Command Purpose
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
ip access-list role-based rbacl-name
Example:
Switch(config)# ip access-list
role-based allow_webtraff
Creates a Role-based ACL and enters Role-based ACL
configuration mode.
Step 3
{[sequence-number] | default | permit |
deny | remark}
Example:
Switch(config-rb-acl)#10 permit tcp dst
eq 80 dst eq 20
Specifies the access control entries (ACEs) for the
RBACL.
You can use most of the commands and options
allowed in extended named access list configuration
mode, with the source and destination fields omitted.
Press Enter to complete an ACE and begin the next.
For full explanations of ACL configuration, keywords,
and options, see, Security Configuration Guide:
Access Control Lists, Cisco IOS XE Release 3S.
The following ACE commands or keywords are not
supported:
• reflect
• evaluate
• time-range
Step 4
Switch(config-rb-acl)# exit
Exits to global configuration mode.

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.