Cisco 300-430 Exam With Confidence Using Practice Dumps

 In passive fallback mode for RADIUS, when the primary RADIUS server fails, the controller will start using the secondary RADIUS server. The default timer settings include an inactive timer, which, upon expiration, prompts the controller to attempt to send RADIUS requests back to the primary server. If the primary server is responsive, the controller will resume sending requests to it. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

For central web authentication with Cisco ISE in a Cisco AireOS WLC environment using auto-anchor for the guest network, the foreign WLC must have UDP ports 1812 and 1813 open to ISE for RADIUS authentication and accounting. Additionally, a downloadable preauth ACL on ISE is required to define the permissions for the guest user before authentication, and a local preauth ACL on the WLC is needed to restrict or allow traffic prior to authentication. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, particularly the chapters on WLC configuration for guest access and integration with Cisco ISE for security and access control.