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

When setting up a new Network Access Device (NAD) on Cisco ISE, it is essential to configure the device’s IP address and the RADIUS shared secret. The device IP address is used to identify the NAD within the network, and the RADIUS shared secret is a password used between the ISE and the NAD to ensure secure communication.

When FlexConnect APs are in standalone mode due to losing connection to the WLC, they should still be able to serve clients if local switching and authentication are enabled. The issue described occurs because FlexConnect Local Authentication is disabled. With local auth enabled, the AP can authenticate clients directly, without needing to communicate with the WLC, thus allowing the SSID to remain advertised and clients to stay connected even if the WLC is unreachable. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

If PEAP authentication is failing and the server is sending an Access-Reject message, one possible action to resolve the issue is to disable the server certificate validation on the client. This means that the client device will not check the authenticity of the RADIUS server’s certificate, which can sometimes resolve connection issues, especially if there is a problem with the certificate chain or trust settings. However, this should be done with caution as it reduces the security of the authentication process. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

When upgrading a Cisco AireOS WLC from version 7.3 to 8.9, it’s crucial to configure ACLs that allow necessary traffic for Cisco Central Web Authentication (CWA). The correct ACLs to configure are:

B. Permit 0.0.0.0 0.0.0.0 UDP DNS any: This ACL allows DNS queries from any source to any destination, which is essential for resolving domain names during the upgrade process.

E. Permit 0.0.0.0 0.0.0.0 UDP any any: This ACL permits all UDP traffic from any source to any destination, ensuring that services relying on UDP can continue to function during the upgrade.

These ACLs ensure that critical services like DNS resolution are not interrupted during the upgrade process, which could otherwise lead to system instability or failure to access network resources. References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

To ensure that only PEAP authentication is used for network access through a wireless network using WPA2 Enterprise with 802.1X, enabling AAA override on an SSID allows individual client authentication requests to be modified by RADIUS server responses dynamically. By configuring an access policy in Cisco Identity Services Engine (ISE) that permits access solely when PEAP is used as the EAP authentication method, any user attempting to authenticate using EAP-FAST will be denied network access until their devices are configured correctly for PEAP usage. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

 To provide guests access using social media authentication, the engineer must configure the “Social Connect” service. This service allows guests to use their Facebook credentials, among other social media platforms, to authenticate and gain network access. It simplifies the guest access process by leveraging existing social media accounts for authentication. References := (CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide)

 When a network engineer receives an alert about a rogue AP and determines it is a security threat inside the campus, the fastest way to disable it is by updating its status in Cisco Prime Infrastructure to ‘contained’. This action instructs the system to prevent the rogue device from communicating with other devices on the network, effectively isolating it without having to physically locate or manually disable it. References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

AutoQoS simplifies the deployment of QoS by automating the process. On the Cisco Catalyst 9800 Series Wireless Controller, AutoQoS takes into account the characteristics of wireless traffic and helps in implementing a consistent QoS policy across both wired and wireless parts of the network. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide.