Introduction Cisco TrustSec (CTS) is a next-generation access control framework that goes beyond traditional IP-based segmentation. Instead of relying on static VLANs and ACLs, it leverages Security Group Tags (SGTs) to dynamically classify traffic, enforce policies consistently across the enterprise, and scale security for modern […]
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Introduction Authorization in Cisco ISE is not just about “yes” or “no” access — it’s about what happens after authentication.Once a device or user is authenticated, Cisco ISE decides what level of access they should get: full access, guest access, VLAN assignment, ACL application, dACL, […]
Introduction In large networks, managing administrative access to switches, routers, and wireless controllers requires strong authentication, granular authorization, and complete activity logging. This is where Cisco ISE Device Administration via TACACS+ shines — it centralizes control, ensures compliance, and gives security teams full visibility into […]
