Cisco TrustSec User Manual

5-5
Cisco TrustSec Switch Configuration Guide
OL-22192-02
Chapter 5 Configuring SGACL Policies
Manually Configuring SGACL Policies
Configuration Examples for Manually Configuring SGACL Policies
Catalyst 3850 IPv4 Manual SGACL policy:
Switch(config)# ip access role allow_webtraff
Switch(config-rb-acl)# 10 permit tcp dst eq 80
Switch(config-rb-acl)# 20 permit tcp dst eq 443
Switch(config-rb-acl)# 30 permit icmp
Switch(config-rb-acl)# 40 deny ip
Switch(config-rb-acl)# exit
Switch(config)# cts role-based permissions from 55 to 66 allow_webtraff
Switch# show ip access allow_webtraff
Role-based IP access list allow_webtraff
10 permit tcp dst eq www
20 permit tcp dst eq 443
30 permit icmp
40 deny ip
Switch# show show cts role-based permissions from 50 to 70
XXX need output XX
Step 5
[no] cts role-based permissions {default
|[from {sgt_num | unknown} to {dgt_num |
unknown}]{rbacls | ipv4 rbacls}
Example:
Switch(config)# cts role-based
permissions from 55 to 66 allow_webtraff
Binds SGTs and DGTs to the RBACL. The
configuration is analogous to populating the
permission matrix configured on the Cisco ISE or the
Cisco Secure ACS.
• Default—Default permissions list
• sgt_num—0 to 65,519. Source Group Tag
• dgt_num—0 to 65,519. Destination Group Tag
• unknown—SGACL applies to packets where the
security group (source or destination) cannot be
determined.
• ipv4—Indicates the following RBACL is IPv4.
• rbacls—Name of RBACLs
Step 6
Switch(config)# end
Exits to Privileged Exec mode.
Step 7
Switch# show cts role-based permissions
Displays permission to RBACL configurations.
Step 8
Switch# show ip access-lists
allow_webtraff
Displays ACEs of all RBACLs or a specified RBACL.
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.