![[Day 23] Cisco ISE Mastery Training: Guest VLAN & Critical VLAN Configuration](https://networkjourney.com/wp-content/uploads/2025/08/Day-23-Cisco-ISE-Mastery-Training-Guest-VLAN-Critical-VLAN-Configuration.png)
Introduction In enterprise networks, wired access security using 802.1X or MAB can occasionally fail due to endpoint configuration issues, missing certificates, or network downtime. When authentication fails, what happens to the user or device? Without proper handling, devices may be completely cut off from the […]
![[Day 22] Cisco ISE Mastery Training: MAB (MAC Authentication Bypass) Configuration](https://networkjourney.com/wp-content/uploads/2025/08/Day-22-Cisco-ISE-Mastery-Training-MAB-MAC-Authentication-Bypass-Configuration.png)
Introduction MAC Authentication Bypass (MAB) lets network devices authenticate endpoints by their MAC address when 802.1X fails or isn’t possible (non-802.1X devices such as printers, IP phones, cameras, unmanaged endpoints). In Cisco ISE deployments, MAB is commonly used as a fallback to 802.1X or as […]
In today’s rapidly evolving tech landscape, hands-on experience is invaluable. Building your own network lab is an excellent way to gain practical knowledge, experiment with different configurations, and prepare for certifications like CCIE, CCNP, and other advanced networking courses. This blog post will guide you […]
