Cisco 300-430 - Implementing Cisco Enterprise Wireless Networks (300-430 ENWLSI)

 In the context of Cisco Catalyst 9800 Series Wireless Controllers, RADIUS profiling requires the correct AAA (Authentication, Authorization, and Accounting) configuration to collect and forward details about clients to a RADIUS server such as Cisco ISE (Identity Services Engine). The correct command in this scenario is “aaa accounting network acct_method start-stop group rad-group” which enables accounting of network services. This command starts gathering accounting information for all network-related service requests and sends start and stop records to the RADIUS server specified in the ‘rad-group’. This allows the controller to forward information about clients’ activities on the wireless network to Cisco ISE for profiling.

References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

To segregate all iPads on the guest WLAN to a separate VLAN without using Cisco ISE, the engineer can create a local policy on the WLC (option A). This local policy can be configured to identify iPad devices and assign them to a specific VLAN based on their device profile or other identifying characteristics. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, especially the sections that cover local policies and device profiling on the WLC.

Local EAP (Extensible Authentication Protocol) allows wireless LAN controllers to directly authenticate clients using an internal database, which can be useful when external RADIUS servers are unreachable. By enabling local EAP, client devices can still connect to wireless networks even if communication with RADIUS servers fails, ensuring continuous network access for users. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

Apple’s Fastlane technology is used to prioritize traffic from iOS devices on the network. By enabling Fastlane under each WLAN setting, the network can recognize and prioritize traffic from Apple iOS devices, addressing the QoS issues for these devices on the WLANs. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

Disabling DHCP proxy on the Cisco WLC and running the ip helper-address command under the VLAN interface to point to DHCP and the two ISE servers is the recommended action. This allows direct communication between clients and DHCP/ISE servers, which is necessary for accurate device profiling.

Application Visibility and Control (AVC) profiles must be implemented to remark the QoS value for WebEx traffic. AVC profiles allow the network to identify different applications and provide the appropriate QoS treatment, ensuring high-quality meetings. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)

The maximum time range that can be viewed on the Cisco DNA Center issues and alarms page is 24 hours. This allows network administrators to monitor and troubleshoot recent issues and alarms within a one-day period. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)

 For an enterprise wireless network with distributed offices globally and APs configured in FlexConnect mode, enabling FlexConnect local authentication is essential to support 802.11r and CCKM. This configuration allows for fast roaming and maintains a secure connection by locally authenticating the clients without having to go back to the central site, thus providing a seamless and efficient roaming experience for the users.

The Simple Certificate Enrollment Protocol (SCEP) is used to securely issue certificates to network devices in a scalable manner. When provisioning certificates on a Cisco Catalyst 9800 Series Wireless Controller using a third-party CA server, SCEP is the protocol that facilitates this process. It allows the controller to request and install certificates automatically, which is essential for establishing secure communications within the network. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)