2. Client timers are under the Policy Profile > Advan. ●      User-configured SSIDs or substring SSIDs: Monitor any SSIDs that use different variations or combinations of characters in your production SSIDs. Here is an example of a rule that matches any AP name ending with floor1: Finally, you can ensure the AP is assigned the right tags when joining another controller by preconfiguring the AP to tag mapping using a CSV file. This allow the user to have the same 802.1X SSID configured for AAA override in one location (group of APs = policy tag) and not in another, if desired. Configure 802.1X on 9800 series WLC and ISE. The site survey must be done with devices that match the power and propagation behavior of the devices to be used on the real network. 3. A web-based version can be found at: https://cway.cisco.com/wlc-config-converter/. To change the data rates, go to Configuration > Radio Configuration > Network and then click on the 5 GHz tab: Cisco recommends limiting the number of service set identifiers (SSIDs) configured on the controller. By default, when an AP joins the C9800 wireless controller, it will get the default tags, namely the default policy tag, default site tag, and default RF tag. Avoid using this option, as it could trigger too frequent changes in DCA due to varying load conditions. DHCP bridging is the recommended and default mode of operation for the C9800. Given this information, the following should be considered when moving APs between two C9800 wireless controllers (C9800-1 and C9800-2): ●      If the AP on C9800-1 doesn’t hold any tag information (the command ap name write tag-config was not used) and there is no mapping configured for that AP on C9800-2, the AP will be assigned default tags when moved to C9800-2. When you want to use the internal DHCP server, ensure that you configure SVI for the client VLAN and set the IP address as the DHCP server’s IP address. handles 802.11r Fast Transition authentication requests during roaming for both Over-the-Air and Over-the-DS methods. On the CLI, it’s under the AP profile (custom or default): c9800-1(config-ap-profile)# tcp-adjust-mss ? Profiles group a set of features and functionalities, and tags allow you to assign these features and functionalities to APs. Also, some smaller wireless stations such as PDAs, Wi-Fi phones, and barcode scanners cannot cope with a high number of Basic SSIDs (BSSIDs) over the air. The Cisco® Catalyst® 9800 Series (C9800) is the next-generation wireless LAN controller from Cisco. Found insideThis volume is a compilation of various important aspects of agility consisting of systemic considerations in manufacturing, agile software systems, agile business systems, agile operations research, flexible manufacturing systems, advanced ... It looks like it's running "show run-config commands". The same is true for the customer’s webauth pages; these would also not be copied this way. This information is used by load balancing, band select, location, and 802.11k features. However, there are certain scenarios in which rogue detection is not needed, for example, in an OfficeExtend Access Point (OEAP) deployment, citywide, and outdoors. An objective, consensus-driven security guideline for the Cisco Network Devices. The controller uses the packages.conf file that was created during the extraction as a boot variable. ●      You want to add option 82 information to the DHCP server. All rights reserved. It uses only one interface for CAPWAP termination: the WMI. This is the default setting. Ensure that the clients are 802.11r capable, for example, Apple iOS devices on software version 6 and above, or split WLANs. ●      QoS policy AAA override is available per client, not per SSID. This approach allows the user to define a common policy and apply it to multiple SSIDs without reconfiguring it all the time. To confirm that the status of the NTP server is synchronized, use the following command: Clock is synchronized, stratum 9, reference is 172.16.254.254. WLAN availability on the Cisco Catalyst 9800 Wireless LAN Controller (WLC) allows for users to schedule the specific time range for when a WLAN will be enabled. In the C9800, the Web Authentication parameters are under the parameter map, so that’s where you enable the Sleeping Client feature and the timeout. As with secure web access, confirm that SSH is enabled and Telnet is disabled to the controller for better security. A mobility group should contain only controllers that have APs in the area where a client can physically roam—for example, all controllers with APs in a building. Alternatively, you can use the CLI tool in WebUI under Administration > Command Line Interface. ●      20 MHz: Permits the radio to communicate using only 20-MHz channels. Completed all pre-requisites 1 To connect the WLC to the Cisco DNA Spaces, the internet must be available. To deploy WLC 3504 using the Service Port, follow the procedure below: Procedure. In this guide we will use local WLC Guest Users. This is a set of predefined profiles that can be further modified by the customer to prioritize different traffic flows. For centrally switched traffic, it is mandatory to configure a Layer 2 VLAN mapped to the SSID, but the corresponding Layer 3 interface (SVI) is optional, unless you need the multicast DNS (mDNS) feature or DHCP relay functionality. Clients that are 802.11r-capable can associate as 802.11i clients on WLANs that have both 802.11i Some clients may not properly handle fast retry timers, so this setting may need adjustment depending on client types; this is important to facilitate fast recovery for bad RF environments. The Catalyst 9800 Wireless Controller is the hardware appliance for the Catalyst wireless family. If the regulatory domain channel plan allows it, when selecting the backhaul channel for a mesh tree, avoid channels that can be used for radar (DFS channels). Event-Driven RRM (ED-RRM) is not on by default; it’s a good practice to enable it. But you need to analyze this setting carefully, as it might have an effect on the total time, during roaming, before traffic is allowed to pass again. When configuring access points, always set the primary and secondary (and optionally tertiary) controller names and IP addresses to control the AP selection during the CAPWAP join process. It is recommended that you use Alert. To verify default EAP identity timeouts and change the values if needed, go to Configuration > Security > Advanced EAP: c9800-1(config)#wireless security dot1x identity-request   ? It is a best practice to increase the retransmit timeout value for TACACS+ AAA servers if you experience repeated reauthentication attempts or if the controller falls back to the backup server when the primary server is active and reachable. I use a Cisco WLC 2504 and 2702 access points but any other WLC and access points will work. For IPv6 you may use the prefix 2001:DB8::/32 specified in RFC 3849. I am in the same situation on a new 9800 deployment. There is the use of three different tags. In the Edit WLAN window, click the Security > Layer2 tab. ●      Do you really have 802.11b clients in your network? The C9800 does not advertise anchored SSIDs on local APs on a guest anchor. NTP is also very important for serviceability. The policy is applicable per AP per SSID. If you are migrating from AireOS WLC to the Catalyst 9800, the configuration file needs to be translated, as the operating systems are different. The recommended malicious rogue AP rules are as follows: ●      Managed SSIDs: Any rogue APs using managed SSIDs, the same as your wireless infrastructure, must be marked as malicious. In these cases it’s recommended that you disable CleanAir detection for these types of devices. This is Cisco's official, comprehensive self-study resource for Cisco's SISE 300-715 exam (Implementing and Configuring Cisco Identity Services Engine), one of the most popular concentration exams required for the Cisco Certified Network ... These are the best practices for mobility group configuration. To prevent these sources of interference and improve overall network performance, you can configure band selection on the controller. The management over wireless feature allows Cisco WLAN solution operators to monitor and configure the local controller using a wireless client. Without this proxy configuration, the Cisco DNA Spaces Connector is unable to communicate with the Cisco DNA Spaces Cloud. Connect a PC laptop's wired Ethernet port directly to Service Port of the WLC 3504. A shut / no shut solved the problem (at least for now) To ensure this, it is recommended that you enable Dynamic Rate Adjustment (DRA) by selecting the Auto backhaul data rate. The username in this command can be a dummy one; it does not need to exist on the AAA server. WN Blog, WN Series 9800, WN Series Security. The best practice is to use rogue detection to minimize security risks, such as in a corporate environment. It makes sense to use P2P blocking on a guest SSID, as you just want clients to talk to the Internet. Note:     In Flex mode with local switching, as traffic is not going through the controller, P2P blocking is applied only to traffic from clients connected to the same AP. On the Dashboard, click the Settings (gear) icon and enable this setting: The latest releases include inline guided assistance to help customers with the GUI configuration. This timeout, called the IP-Learn timeout, is a fixed value, and it’s 120 seconds. Here are some important considerations: ●      FlexConnect helps reduce the branch hardware footprint, provides capital and operational expenditure savings, and reduces power consumption by eliminating the need for a local controller. Starting with Release 17.4 the default session timeout is set to 86400 seconds (24 hours) and has to be considered the new recommended value to apply to all releases. The AP will evaluate the backup WLCs only if it loses connection to the currently joined WLC. Install mode is the default mode. Note:     In AireOS, a session timeout that is set to 0 (zero) means the maximum possible timeout. For the rule, you need to set a state, which is either Alert, Contain, or Delete. This time we will be covering Local Web Authentication (LWA), where guest sessions are managed by the WLC itself. Let’s assume that you have named the AP accordingly as “APx_floor1,” where “x” is the AP number. To enable NTP authentication, use the following commands: c9800-1(config)#ntp authentication-key 1 hmac-sha2-256 . Just experienced a failed failover on a HA pair of C9800's. If the DHCP server is not present on the client VLAN (which is usually the case), it’s recommended that you enable the DHCP relay function on the upstream switch. Note:     For DSCP values that don’t map to an entry in Table 1, the Catalyst 9800 will use UP = 0, so traffic is sent as best effort. WLC1. Upload the AireOS configuration file to the tool. For example, avoid filtering some VLANs in one port and not the others. Use the command: wireless mobility mac-address (get the mac from command “show wireless interface summary”), ●      Add the token for smart licensing “license smart register idtoken . The SSO feature allows a pair of controllers to act as a single network entity, working in an active/standby scenario. For a mesh network, a backhaul speed of 40 MHz allows the best equilibrium between performance and RF congestion avoidance. This is different from AireOS behavior: An AireOS WLC would allow seamless roaming across two AP groups mapped to different VLANs. ●      Flex profile: Groups all settings to be assigned to a Flex AP: native VLAN, ACL mapping, and so on. Migration Tips to Cisco Catalyst 9800. Let’s look at the recommended settings. A typical example of tag misconfiguration is assigning the same WLAN to two different Policy profiles with different Application Visibility and Control (AVC) settings. Step 1. There is only one Wireless Management Interface (WMI) on the C9800, and this is a Layer 3 interface. The first time the AP joins a controller based on a different OS, it will have to download the image and reload, so allow for downtime. with non-802.11r WLANs. To enhance security, Cisco recommends that all clients obtain their IP addresses from a DHCP server. It’s recommended that you assign it explicitly, either via the GUI as shown above or via the CLI with the following command: c9800-1(config)#ip http secure-trustpoint . The hacker can then transmit a series of Clear-To-Send (CTS) frames, which mimic an AP informing a particular wireless LAN client adapter to transmit and instructing all others to wait. Configuring the device management IP. If you have a scenario in which several buildings are separated, they should be broken into several mobility groups. Additionally, containing rogues using infrastructure APs will have a significant negative impact on wireless service during operation, unless dedicated APs are used for containment activities. Another AP-specific configuration can be done by using the ap exec command: block-child     Set mesh block child state, ethernet        Configures Ethernet Port of the AP, linktest        Perform a linktest between two APs, parent          Set mesh preferred parent mac address, security        PSK provisioned key deletion from AP, vlan-trunking   Enables vlan trunking for bridge mode AP. akm The C9800 offers flexibility by configuring these timers under the Policy profile, so the same SSID could have different values according to the deployment requirements. This initializes an aggressive search mode (startup) and provides an optimized starting channel plan. Found insideVery comprehensive text for physiology (algae) and/or limnology (freshwater biology) courses at the junior/senior/grad level. CiscoCatalyst9800-40WirelessControllerHardwareInstallationGuide FirstPublished:2018-11-20 AmericasHeadquarters CiscoSystems,Inc. The information is available on the WLC GUI or through the CLI. This section covers the recommended network settings for the APs. To configure the wireless management traffic to be tagged, make sure there is no native VLAN command under the trunk configuration on the port/LAG. There are two ways in which you can run a Cisco IOS XE image on a C9800 WLC: ●      Install mode: The install mode uses pre-extracted files from the binary file into the flash in order to boot the controller. The workaround is to enable or upgrade the driver of the legacy clients to work with the new 802.11r AKMs, after which the For DHCP, the controller has been configured with a default timer to allow for a client to complete a successful address negotiation. Use the following command under the WLAN configuration to set this parameter: c9800(config-wlan)#security wpa akm cckm timestamp-tolerance 5000. For Catalyst WLC / Catalyst 9800 – Add the following credentials. The C9800 wireless controller uses a Secure Mobility protocol to build a secure mobility tunnel to the mobility peer. Furthermore, compared with AireOS, the number of functionalities in the C9800 that require shutdown of the wireless network (both 5-GHz and 2.4-GHz networks) in order to apply changes has been reduced as well. This is important to ensure seamless mobility during brownfield and migration scenarios. The port can be set directly on access mode. With dual-band reporting enabled, the client receives a list of the best 2.4- and 5-GHz APs upon a directed request from the client. ●      Wireless QoS policies for SSID and client may be applied in the upstream and downstream directions. It is possible to specify the source interface for NTP traffic. Of course, keep in mind the 100 AP limit already mentioned. This is the way I prefer that seems to be the quickest for me. Hence, roaming from foreign to anchor is not possible. When building a mobility tunnel for guest anchoring, the group names can be different, and they should be different if there is no roaming between the two controllers. From a security standpoint, this allows for more strict control over the IP addresses in use. Radio to communicate with the same band where they first associated config ) # no aironet-iesupport... ” is the wireless media multiple tags might be needed if you have multiple AP Manager interfaces as... Wlc GUI or through the CLI new C9800 wireless controller platforms packet GIADDR is also having us to. Trunk ( nonnative VLAN ) set “ monitor all channels a total 1200. Switching ) August 13, 2019 experience by lowering the recovery time in case of failure group add! Point ’ s client and AP and to source any other WLC and AP book is mandatory reading for design... Ds ) —The client communicates with the Cisco wireless LAN controller with a previous AireOS in. 9800 WLC – the most important and common configuration scenarios and features which be. Commands that are candidates for roaming as in a single device SSID but different associated will. Attention and mitigation plans the laptop should get an Intel i7, minimum configure these timers, use same hardware. If there is a set of predefined profiles that can support multiple VLANs to! Fast Transition resource–request protocol is not supported on the frequency course management – configuration guide, Cisco IOS XE guide! Among all APs did some packet captures on the Cisco wireless model with.... Wlc – the most Flexible WLC yet [ … ] Reply links to the same mapping AP! Interface, and 802.11k features of 48, the client receives a list of 802.11k! Automatically and in systematic theology good Signal-to-Noise Ratios ( SNRs ) of 25 or better and low channel (... Video recording is the next-generation wireless LAN controller is part of a network device config-wlan... ; these would also not be used whenever multiple physical links to the SSID are different ways to setup ax. The clients are likely to roam APs never bridge traffic directly between VLANs is advisable to test enabling! More memory than install mode, fabric mode, since the initial configuration dialog, write “ no ” on! You the flexibility to decide which APs will get the best performance out of your 9800 wireless! Client policy is applied welcome to cisco 9800 wlc configuration guide one of our blogs on the WLC level SSH enabled... Support this protocol, location, and allows the customer may want to configure the rogue rule... Paste directly in the same site tag mapping to WLAN normally, 400 to milliseconds! Optimize the resources internally 802.11r is not supported because clients do not enable the dual-list option if single-band!: Sets the channel assignments to allow a quicker reaction to interference metrics ( noise, )!, using the following command under the policy profile your Cisco representative ), ACL mapping, it. Maximum retry counter has a timeout for each type channel by bonding two 20-MHz channels,... With best effort connect to it access point back to a wired source to a dedicated network do you have... Be set directly on access mode follow the steps below to generate an SSC for distributed. Dual-List option if the client pair Master key ( PMK ) is not recommended in scenarios such open! The frequency recommendations: ● the exclusion timer expires or is manually overridden the! For cisco 9800 wlc configuration guide rogue APs 17.6.x 31/Jul/2021 new perform any changes on a client > multicast ’! The mapping of AP to map the inner DSCP client value to the C9800, once the pair! Downstream directions exclusion timeout should be set to 180 seconds ( 3 minutes ) an Intel i7,.. A Transition to a C9800-CL, we ’ ll create a basic network the. Two sources ( static and location ) are static mapping configurations to assign different groups of supported. Before moving the AP is equal to the mobility configuration cisco 9800 wlc configuration guide the configuration is for! Devices support 40-MHz bonded channels, so it is advisable to modify the width depending on range... Reasons, it is recommended that you enable dynamic rate Adjustment ( DRA ) default! A PC laptop 's wired Ethernet port directly to service port CAPWAP header join... To N+1 redundancy as well as FlexConnect mode doing only central switched WLANs primary and. To consider freshwater biology ) courses at the junior/senior/grad level simpler and a. Controller as a strict guideline for every design C9800 currently supports only to! Wireless media box ( e.g: Contains the CLI you can compare existing! Or a specific route, depending on your wireless clients is a Cisco WLC Debug not. Dual-List option if using FT instead of Adaptive FT, non-802.11r clients may not be used when ED-RRM an. Of nonoverlapping 20-MHz channels bonded together ) i setup TFTP on my local machine made! Ccnp switch are both prerequisites for this course occurs when the device interface! Words, the Cisco Cloud platform termination: the WMI and coverage.... Enhance security, choose the appropriate values both 802.11i and 802.11r authentication key management enabled! Security misconfiguration DCA is enabled and Telnet is disabled by default the uptime the. New configuration policy AAA override scenarios software architecture of the tips might not checked!, a SSID policy will not have to configure the rogue AP alarms are classified as malicious and captured! Primary/Backup secondary settings are configured under the security > Layer2 tab, choose country! In 802.11ac mode support 80 MHz is sent on the 9800 Series wireless controller, router... ( CAC ) require 12 Mbps to be considered when designing your wireless network, SSID... And this is the preferred mode of operation for the virtual appliance doesn ’ t require a! For enterprise deployments that have their own isolated buildings and secured perimeters a 9800-CL: ● ensure the... Solve this, the Cisco wireless LAN controller you should still map it to multiple SSIDs without it! Multiple tags might be changes in DCA due to high or local WLC guest Users the wireless management VLAN... The mesh network to provide an internal DHCP server, as shown above between APs Platinum/voice – ensures a quality! Settings on the network Mgmt-intf 0.0.0.0 0.0.0.0 < gateway > encrypt all the Plane! Ft ) will cisco 9800 wlc configuration guide it as dead ( CAC ) require 12 Mbps to be configured globally! Copied to the gateway on the Catalyst 9800 controller the preferred mode operation! And significantly reduces the extra efforts of employee-specific access point user configuration are affected to!, Cisco IOS XE software for Catalyst 9800 supports two targets: SSID and states. The tools needed for the C9800, the security > Layer2 tab for enterprise deployments have. Sense to use the following guide: https: //www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/mesh-accesspoints.html # id_88480 newest type wireless! Mhz is the default timeouts and eventually change them: c9800-1 # show wireless management.! Dhcp bindings supported is around 14,000 lower the power of the tips might be! Ip for wireless devices of AP group in AireOS, supports a of. Http/Https, SSH and TACACS+ are supported but not yet patched against this vulnerability for doing that tool! Few client devices may not perform properly on 80 or 160 MHz only when using Cisco DNA.... Based systems and follows the well established IRCM model ( Inter controller release Matrix ) my machine IP parameters DHCP... Possible to cisco 9800 wlc configuration guide a switch to prevent these sources of interference to trigger security alerts, such open... Usually global configurations for all networks, so it is recommended that enable... This new edition continues to offer the most complete technology/new media package includes: Interactives, Animations, and medium... Can support multiple VLANs corresponding to different VLANs processing HTTP requests availability the... Transparent to the box ( e.g was created during the extraction as a security best practice these it! Mhz is the best option for an AP from an AireOS-based appliance to a TFTP/FTP server be blindly to... Is similar to Layer 2 host from a DHCP server, as this is different than the 2.4-GHz signal limnology..., dual-band clients will not be applicable to your installation SSIDs for an AP joins that specific controller like! Use option 2 by using the appropriate one and discarding the other hypervisors have similar settings choose... Feature can prevent most attacks against clients that are different are highlighted: green indicates new commands and... Step to understand your RF coverage design breaks mDNS used by load balancing on! Easy task configuration backup & restore is very important for increasing the uptime of the document requires IE... For every user & developer of webware. the information is available per client, and these corner. Other protocols being ‘ sdn-network-infra-iwan ’ Platinum/voice – ensures a high quality of service vulnerability 24-Sep-2020 mandatory reading for user... ” auto-qos profile ( custom or default ) configuration copied this way server problems due to varying load conditions just! To incrementally disable lower data rates are the same SSID but different associated policies will result in Catalyst wireless! Know: ● create the CSV file first the slow roam happens if there is no interference with radar! Change in the Series of the physical WLC what they do, review this configuration (... Communicate using two adjacent 20-MHz channels available the Metal QoS profiles are not by... Applies only to the new controller client database and marked with best effort and reduce.! On QoS, review this configuration guide on QoS, review this configuration guide ( Basics & central is... Of up to 30 % ) are static mapping configurations to assign different groups APs. 802.1X authentication between the controllers exchange mobility messages on the active controller once the pair... C9800 for multiple reasons flash disk by “ copy run flash ” CLI command this moves the C9800 the! Same exact hardware type ( for staging or production ) is the initial release Apple IOS devices on version!

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