300-430 Exam Dumps - Cisco CCNP Enterprise Questions and Answers

 When configuring Cisco OfficeExtend Access Points (OEAPs), enabling NAT IP only for office-extend is necessary if the APs are behind a NAT device and need to communicate with the Wireless LAN Controller (WLC) using the internal IP management address. The command config flexconnect office-extend nat-ip-only enable allows the APs to discover and associate with the WLC when the management interface is configured with a NAT address.

To change the NTP server on the Cisco CMX server, the administrator should log in to the Cisco CMX CLI and issue the command set ntp server NTP_IP, where NTP_IP is the IP address of the new NTP server. This method is straightforward and does not require manual editing of configuration files or restarting the entire server. References: The process for changing the NTP server on a Cisco CMX server is detailed in the official certification guide, which provides step-by-step instructions for using the CLI.

The issue is likely caused by the CPU ACL on the controller, which is blocking HTTP/HTTPS traffic from the guest clients. When a WLAN with Web Authentication is used, the wireless client’s browser is redirected to a web page for authentication. If the CPU ACL is configured to only allow controller web management traffic from the IT subnet, it may inadvertently block the necessary HTTP/HTTPS traffic for the Web Authentication process, leading to a timeout on the wireless client browser. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide, specifically the sections discussing CPU ACLs and their impact on network traffic.

To route wireless traffic from the branch through the firewall at corporate headquarters, the correct Cisco FlexConnect configuration is central authentication and central switching. This setup ensures that both user authentication and data traffic are handled centrally at the corporate headquarters, allowing the firewall to inspect and route the traffic accordingly. Local RADIUS servers in each branch can still be used for redundancy or other purposes, but the central control of traffic is maintained. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide.

The Out-of-Sync alarms in Cisco Prime Infrastructure typically indicate that there is a discrepancy between the configuration of the APs as known by Prime Infrastructure and their actual configuration. To resolve this issue, the engineer can either manually synchronize the APs from Cisco Prime Infrastructure (A) or enable automatic synchronization on Cisco Prime Infrastructure © to ensure that the AP configurations are updated automatically. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide

The issue with users configured for EAP-PEAP not being able to connect to the network, when a Cisco Wireless LAN Controller (WLC) is deployed using local EAP, typically points to a misconfiguration in the local EAP profile on the WLC. EAP-PEAP relies on a server-side certificate to create a secure TLS tunnel for the authentication process. If the local EAP profile is not correctly configured with the proper certificate or other necessary settings, the authentication process will fail, preventing users from connecting. References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

For rogue containment on an SSID, it’s recommended to use two access points for containment (Option B). Using more than two can lead to unnecessary interference and potential disruption of service for legitimate users, while using just one may not be effective enough in containing the rogue SSID. References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

The Network Mobility Services Protocol (NMSP) is the protocol used by Cisco Mobility Services Engine (MSE) to communicate with Cisco Wireless LAN Controllers (WLCs). For NMSP messages to successfully pass through a firewall, the correct port must be allowed. The default port for NMSP traffic is TCP 16113. Therefore, to ensure communication between MSE and WLC using NMSP, TCP port 16113 must be allowed on the firewall. References := ( CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide )

The output observed in Prime Infrastructure suggests that there is at least one strong interferer impacting connectivity at this site. This conclusion is drawn from observing areas marked with intense red coloring indicating high levels of RF interference which could degrade wireless performance significantly if not addressed. 

On a Cisco Catalyst 9800 Series Wireless Controller, the command set that prevents a FlexConnect AP from allowing wireless clients to connect when its Ethernet connection is nonoperational is the fallback-radio-shut command within the FlexConnect profile configuration. This command disables the radios on the AP, thus preventing client connections during Ethernet link failure. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide