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CCNP Wireless Security

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Enhanced Neighbor list - E2E
Allows intel clients to request a neighbor list at will.
1812 - Authentication 1813 - Authorization
is provided to clients as they associate - including neighbor ap info like channel - rssi etc.
Inter Access Point Protocol uses UDP between aps to exchange information about new aps (announce) in the area and handoffs that have occurred when client roams

2. Why is fast secure roaming used
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store
x509 cert to establish DTLS capwap control tunnel. It can be either 1. LSC 2. MIC (Mafctr installed cert) or 3. SSC
1. Temporal Key for Unicast 2. Key Confirmation Key (KCK) - used for group handshakes 3. Key Encryption Key (KEK) - for encrypting the group encyrption key used to derive the braodcast/multicast keys.
Does not require re-authentication when a client roams - in an 802.1x/WPA2 environment

3. When will a WLC use a Local EAP profile?
1. Scanning - for other aps in the area 2. exchanging 802.11 auth messages (first from client then from ap) w/ the target ap 3. exchanging re-association messages with target ap 4. dot1x master key (PMK) negotiation 5. key derivation - 4way handshake
Only when all the RADIUS servers defined globally are unreachable. (ie. even if not called out under WLAN-->AAA - the global RADIUS servers will be used instead of local profile)
1. User performs .1x with RADIUS 2. WLC forwards radius accounting start to NAM (along with clients IP) 3. clients NAA detects network con. & tries to connect to NAM. 4. NAS Intercepts step 3 & contacts NAM itself to see if client is in the online li
WLC generates a Message Integrity Check Information Element (MIC IE) - which includes a sequence # - and aps add it to each mgmt frame. Clients ignore this IE - as they do not understand it.

4. What is included in a Pairwise Transient Key (PTK)
WLCs create a deriviative of the PMK - called Opportunistic Key Caching (OPC) for fast-roaming among HREAPs in the same HREAP group.
1. application type 2. security capabilities 3. QoS policy
1. Temporal Key for Unicast 2. Key Confirmation Key (KCK) - used for group handshakes 3. Key Encryption Key (KEK) - for encrypting the group encyrption key used to derive the braodcast/multicast keys.
1. v2 - LEAP 2. v3 - EAP-FAST 3. v4 - PEAP & EAP-TLS

5. What kind of mgmt frames does client mfp protect
1. Wireless-->AP Global Config-->enable dot1x w/ user/pass 2. Config the switch port to enable auth. to ACS/RADIUS
1. disassociation 2. deauthentication 3.QoS (WMM)
1. Integrated -- wIPS monitor mode aps are part of client-serving infrastructure 2. Overlay -- wIPS aps - WCS & WLCs are totally seperate
what occurs as a client roams to new ap -WLC forwards cached PMK to AP. Client then forms a Pairwise Transient Key (PTK) via 4-way handshake w/ ap.

6. Steps to auth with NAA w/ SSO
1. Off (default) - moves down list and uses next server indefinately. 2. Passive -- Upon failure - server is marked as inactive for (300 seconds) then is put back in list and tried again (if its highest priority). 3. Active -- Actively probes failed
1. config mobility list to support anchor & foreign wlcs (using different mob. groups on ea. to keep auth. seperate between anchor & foreigns) 2. Map the guest wlan on foreign wlc to either mgmt int. or fake dynamic int. (ie dynamic int tied to a vla
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store
1. User performs .1x with RADIUS 2. WLC forwards radius accounting start to NAM (along with clients IP) 3. clients NAA detects network con. & tries to connect to NAM. 4. NAS Intercepts step 3 & contacts NAM itself to see if client is in the online li

7. Steps to setting up out-of-band virtual gateway setup on the NAS & NAM
1. Temporal Key for Unicast 2. Key Confirmation Key (KCK) - used for group handshakes 3. Key Encryption Key (KEK) - for encrypting the group encyrption key used to derive the braodcast/multicast keys.
on the WLC -1. Configure an Access vlan & check the quarentine vlan - giving it the quarentine vlan tag 2. on wired net connect the Quarenteen vlan to the untrusted NAS interface. 3. Connect the access vlan to the trusted int. on the nas 4. config sn
1. on NAS create an oob profile for the WLC 2. Create a new device in NAM - specifying the WLC mgmt ip 3. device mgmnt-->NAS & add the NAS ip as an oob virt. gateway 4. still on nams nas config page - enter the nas trusted int. ip & untrusted int vla
Corrospond to top-menu GUI items (wireless - security - monitor etc)

8. How does infrastructure MFP work
x509v3 certificate
clients are load ballanced between them - this can not be configured otherwise.
Asymetric (public & Private key-pair)
WLC generates a Message Integrity Check Information Element (MIC IE) - which includes a sequence # - and aps add it to each mgmt frame. Clients ignore this IE - as they do not understand it.

9. Steps to roaming in non802.1R
1. User performs .1x with RADIUS 2. WLC forwards radius accounting start to NAM (along with clients IP) 3. clients NAA detects network con. & tries to connect to NAM. 4. NAS Intercepts step 3 & contacts NAM itself to see if client is in the online li
used with PEAP for user/password authentication
EAP-FAST with anonymous pac provisioning
1. Scanning - for other aps in the area 2. exchanging 802.11 auth messages (first from client then from ap) w/ the target ap 3. exchanging re-association messages with target ap 4. dot1x master key (PMK) negotiation 5. key derivation - 4way handshake

10. Main elements of a NAC deployment
1. Interfac Configuration --> RADIUS (IETF) --> check 64 (Tunnel Type) - 65 (Tunnel Medium Type) - 81 (Tunnel Private-group-id) 2. Navigate to Group Setup and enable the checkboxes for the previous attributes - where 64=VLAN - 65=802 - 81=<Vlan_tag>
MFP-1 protects infrastructure from management frame attacks (ie aps only). MFP-2 Protects both infrastructure & clients
1. NAC Guest Server (NGS) - Like a RADIUS server when people can create guest accounts 2. Nac Manager (NAM) - Centrilized server for creating policies & profiles that determine network access. 3. Network Access Server (NAS) - The device which control
Sends the PMK to all WLCs that the client can roam to.

11. Steps to configure wlcs for guest wlan
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store
1. config mobility list to support anchor & foreign wlcs (using different mob. groups on ea. to keep auth. seperate between anchor & foreigns) 2. Map the guest wlan on foreign wlc to either mgmt int. or fake dynamic int. (ie dynamic int tied to a vla
It handles .1x & NAC auth. with Single Sign on. WLC forwards RADIUS accounting messages (of EAPOL Success) to the NAC upon login - authing the client to nac - & then it goes through posturing
WLCs create a deriviative of the PMK - called Opportunistic Key Caching (OPC) for fast-roaming among HREAPs in the same HREAP group.

12. NAC Deployment Types
1. In-band virtual gateway -- is at L2 and intercepts all traffic and re-tags the default/untrusted vlan to the trusted vlan - based on compliance 2. In-Band Real IP Gateway - is the gateway 3. Out-of-band virtual gateway (same is 1 - except traffic
1. config mobility list to support anchor & foreign wlcs (using different mob. groups on ea. to keep auth. seperate between anchor & foreigns) 2. Map the guest wlan on foreign wlc to either mgmt int. or fake dynamic int. (ie dynamic int tied to a vla
WLC generates a Message Integrity Check Information Element (MIC IE) - which includes a sequence # - and aps add it to each mgmt frame. Clients ignore this IE - as they do not understand it.
WLCs create a deriviative of the PMK - called Opportunistic Key Caching (OPC) for fast-roaming among HREAPs in the same HREAP group.

13. Switchport config to enable dot1x on a port
x509v3 certificate
1. on NAS create an oob profile for the WLC 2. Create a new device in NAM - specifying the WLC mgmt ip 3. device mgmnt-->NAS & add the NAS ip as an oob virt. gateway 4. still on nams nas config page - enter the nas trusted int. ip & untrusted int vla
-150ms
switchport mode access - dot1x pae authenticator - dot1x port-control auto

14. Reason why you can NOT use WLC RADIUS server to auth. against OpenLDAP or Win-2003 (or later)
WLC RADIUS server only works if passwords are sent in Clear-text from LDAP.
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store
after .1x authentication user is forwarded to a splash page. This is done via RADIUS attribute
after authentication - the client & radius server cache session keys for a configurable amount of time

15. Encryption algorithm used by Certificates
mfp-v2
MFP
Corrospond to top-menu GUI items (wireless - security - monitor etc)
Asymetric (public & Private key-pair)

16. 6 criteria types for rogue classification
1. RSSI 2. Duration 3. Client Count 4. No encryption 5. Managed SSID (ie UNLV) 6. SSID
1. CAPWAP 2. NMSP (network mobility services) 3. SNMP 4. SOAP/XML
1. Interfac Configuration --> RADIUS (IETF) --> check 64 (Tunnel Type) - 65 (Tunnel Medium Type) - 81 (Tunnel Private-group-id) 2. Navigate to Group Setup and enable the checkboxes for the previous attributes - where 64=VLAN - 65=802 - 81=<Vlan_tag>
1. Off (default) - moves down list and uses next server indefinately. 2. Passive -- Upon failure - server is marked as inactive for (300 seconds) then is put back in list and tried again (if its highest priority). 3. Active -- Actively probes failed

17. Enhanced Neighbor list
is provided to clients as they associate - including neighbor ap info like channel - rssi etc.
1. v2 - LEAP 2. v3 - EAP-FAST 3. v4 - PEAP & EAP-TLS
1. udp 16666 for control traffic 2. IP Protocol 97 (EoIP) for client data traffic
enables Identity Based Netowrking (IBN) where wlan settings are changed per-user (qos - vlan - acls - or timeouts)

18. What is Conditional Web Redirect
after .1x authentication user is forwarded to a splash page. This is done via RADIUS attribute
when you want some wlcs to be part of the same mobility group - but not others.
WLC can detect 802.11 attacks - but not other attacks from valid wireless clients.
MFP

19. Authentication types used by SNMPv3
WLC can detect 802.11 attacks - but not other attacks from valid wireless clients.
1. HMAC-MD5 2. HMAC-SHA
1. Create user acct. in IDS for each WLC in the viewer role 2. add the WLCs IP as an allowed host 3. Obtain the IPS TLS Fingerprint & add it to WLC 4. Enable the client exclusion policy on the WLAN 5. Set msg log level to Alerts to log IPS events
It handles .1x & NAC auth. with Single Sign on. WLC forwards RADIUS accounting messages (of EAPOL Success) to the NAC upon login - authing the client to nac - & then it goes through posturing

20. Ports to open on fw to allow foreign to anchor controller tunnel to be built
x509v3 certificate
a mobility list can contain multiple mobility groups
1. udp 16666 for control traffic 2. IP Protocol 97 (EoIP) for client data traffic
mfp-v2

21. How does the Nac Appliance Agent (NAA) work cohesively with 802.1x
1. CAPWAP 2. NMSP (network mobility services) 3. SNMP 4. SOAP/XML
It handles .1x & NAC auth. with Single Sign on. WLC forwards RADIUS accounting messages (of EAPOL Success) to the NAC upon login - authing the client to nac - & then it goes through posturing
Only when all the RADIUS servers defined globally are unreachable. (ie. even if not called out under WLAN-->AAA - the global RADIUS servers will be used instead of local profile)
mping = tests intercontroller control traffic. eping = tests intercontroller data traffic (EoIP)

22. How is IBN-QoS
1. RSSI 2. Duration 3. Client Count 4. No encryption 5. Managed SSID (ie UNLV) 6. SSID
ACL - or Interface-name configured in ACS -1. Interface Configuration --> RADIUS (Cisco Airspace) and check off: Air-Qos-Level - Aire-DSCP - Aire-802.1p tag - Aire-Interface-name - Air-ACL-Name
1. client -> authenticator: eapol_start 2. authenticator -> client: eap request/identity 3. client -> authenticator: eap response/identity 4. authenticator -> aaa: radius access request 5. aaa -> client: eap-tls handshake 6.aaa -> authenticator: radi
Clients send info re: previously associated aps to current ap - so it can use this information to inform current clients about neighboring aps. Requires CCXv2

23. How is IBN implemented on a WLAN
grouping WLCs or map areas - so Lobby ambassadors can create guest accounts only on certain wlcs
Controll is (mgmnt) not data. To encrypt data: check data encryption under advanced tab of ap config
checking allow aaa over-ride in the wlan-->advanced.
1. Allow EAP-MSCHAPv2 2. Allow EAP-GTC 3. Check Posture Validation when doing NAC

24. Will foreign/anchor communication work through PAT?
after .1x authentication user is forwarded to a splash page. This is done via RADIUS attribute
PKI
no
1. on NAS create an oob profile for the WLC 2. Create a new device in NAM - specifying the WLC mgmt ip 3. device mgmnt-->NAS & add the NAS ip as an oob virt. gateway 4. still on nams nas config page - enter the nas trusted int. ip & untrusted int vla

25. 802.11R
300ms
RSN Tag. Auth Key mgmt will show PSK - or WPA (for 802.1x) Stands for Robust Security Network
specifies fast bss transitions by allowing negotiations and requests for wireless resources to occur simultaneously. Does this by allowing for part of the key to be cached (server key) among the network - so full 802.1x auth. isnt required
based on auth. group -1. vlan 2. qos 3. acl 4. tunnel attributes

26. Regulatory Compliance Acronyms
100 local accounts max
Check Shell(exec) then define roles as role1=MANAGEMENT role2=WLAN role3...etc
Asymetric (public & Private key-pair)
US: 1. HIPAA 2. GLBA 3. FFIEC 4. SOX 5. FIPS 6. NIAP Canada: 1. PIPEDA Japan: 1. JPIPA

27. What is used for HREAP Roaming re: keying
WLCs create a deriviative of the PMK - called Opportunistic Key Caching (OPC) for fast-roaming among HREAPs in the same HREAP group.
1. In-band virtual gateway -- is at L2 and intercepts all traffic and re-tags the default/untrusted vlan to the trusted vlan - based on compliance 2. In-Band Real IP Gateway - is the gateway 3. Out-of-band virtual gateway (same is 1 - except traffic
after authentication - the client & radius server cache session keys for a configurable amount of time
Nac Guest Server - used for provisioning guest accts - detailed usage reporting - delivery of creds via emai/sms -

28. Steps to adding an IPS
WLC RADIUS server only works if passwords are sent in Clear-text from LDAP.
1. Create user acct. in IDS for each WLC in the viewer role 2. add the WLCs IP as an allowed host 3. Obtain the IPS TLS Fingerprint & add it to WLC 4. Enable the client exclusion policy on the WLAN 5. Set msg log level to Alerts to log IPS events
Asymetric (public & Private key-pair)
1. config mobility list to support anchor & foreign wlcs (using different mob. groups on ea. to keep auth. seperate between anchor & foreigns) 2. Map the guest wlan on foreign wlc to either mgmt int. or fake dynamic int. (ie dynamic int tied to a vla

29. What is a mobility list used for
when you want some wlcs to be part of the same mobility group - but not others.
802.11i - 802.11r - 802.11w & 802.11n
is provided to clients as they associate - including neighbor ap info like channel - rssi etc.
specifies fast bss transitions by allowing negotiations and requests for wireless resources to occur simultaneously. Does this by allowing for part of the key to be cached (server key) among the network - so full 802.1x auth. isnt required

30. Protocols used in wIPS
1. Captive Portal 2. NAA (agent installed on windows); auth twice (1 to radius 2 to nac) 3. NAA w/ SSO - user authss once. & wlc auths to nac on their behalf.
1. CAPWAP 2. NMSP (network mobility services) 3. SNMP 4. SOAP/XML
1. RSSI 2. Duration 3. Client Count 4. No encryption 5. Managed SSID (ie UNLV) 6. SSID
1. Guest User 2. Sponsor 3. Network Enforcement Device (ie wlc) 4. NGS Server itself

31. What ports does OEAP use to connect to anchor WLC
DTLS (Datagram Transport Layer Security)
puts the ap and client through tests to isolate connection issues. This disables the wlan while doing this. Can be used to diagnose .1x auth - .11 association etc. if using ccxv5
UDP 5246 & 5247
used with PEAP for user/password authentication

32. What protocol to WLCs use to communicate with IPS
after .1x authentication user is forwarded to a splash page. This is done via RADIUS attribute
Nac Guest Server - used for provisioning guest accts - detailed usage reporting - delivery of creds via emai/sms -
1. HMAC-MD5 2. HMAC-SHA
HTTPS

33. What part of an 802.11 Beacon contains the security mechanisms in use
ACL - or Interface-name configured in ACS -1. Interface Configuration --> RADIUS (Cisco Airspace) and check off: Air-Qos-Level - Aire-DSCP - Aire-802.1p tag - Aire-Interface-name - Air-ACL-Name
1. Interfac Configuration --> RADIUS (IETF) --> check 64 (Tunnel Type) - 65 (Tunnel Medium Type) - 81 (Tunnel Private-group-id) 2. Navigate to Group Setup and enable the checkboxes for the previous attributes - where 64=VLAN - 65=802 - 81=<Vlan_tag>
RSN Tag. Auth Key mgmt will show PSK - or WPA (for 802.1x) Stands for Robust Security Network
Sends the PMK to all WLCs that the client can roam to.

34. What is the IEEE Standards version of MFP
1812 - Authentication 1813 - Authorization
mfp-v2
what occurs as a client roams to new ap -WLC forwards cached PMK to AP. Client then forms a Pairwise Transient Key (PTK) via 4-way handshake w/ ap.
802.11w

35. Steps to posture assesment
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store
-150ms
Sends RADIUS packets from a dynamic interface instead of the WLC Mgmt interface address
1. client begins in Quarenteen vlan & NAA sends posture assesment to NAS 2. assesment is verified against policies in NAM 3. If in compliance - client is moved to access vlan. If not - NAS sends remediation info to client 4 NAA guides user through re

36. Is data encrypted over a capwap tunnel?
Controll is (mgmnt) not data. To encrypt data: check data encryption under advanced tab of ap config
UDP 5246 & 5247
enables Identity Based Netowrking (IBN) where wlan settings are changed per-user (qos - vlan - acls - or timeouts)
1. Wireless-->AP Global Config-->enable dot1x w/ user/pass 2. Config the switch port to enable auth. to ACS/RADIUS

37. Eap process/messages
MFP
1. client -> authenticator: eapol_start 2. authenticator -> client: eap request/identity 3. client -> authenticator: eap response/identity 4. authenticator -> aaa: radius access request 5. aaa -> client: eap-tls handshake 6.aaa -> authenticator: radi
no
Security --> Advanced --> CIDS --> Sensors

38. 3 categories of segmented traffic
1. Interfac Configuration --> RADIUS (IETF) --> check 64 (Tunnel Type) - 65 (Tunnel Medium Type) - 81 (Tunnel Private-group-id) 2. Navigate to Group Setup and enable the checkboxes for the previous attributes - where 64=VLAN - 65=802 - 81=<Vlan_tag>
assigning multiple vlans to single wlan - and users are dynamically mapped to one of the vlans in round-robin
1. application type 2. security capabilities 3. QoS policy
1. CAPWAP 2. NMSP (network mobility services) 3. SNMP 4. SOAP/XML

39. What does Proactive Key Caching do
Sends the PMK to all WLCs that the client can roam to.
1. Log into cert. server - from ACS -and click link to install it locally 2. Log into ACS and install cert into local store 3. DL cert chain from CA to ACS store 4. Tell ACS to use that cert from its store 5. restart ACS 6. log back into ACS and inst
DTLS (Datagram Transport Layer Security)
1. v2 - LEAP 2. v3 - EAP-FAST 3. v4 - PEAP & EAP-TLS

40. Encryption types used by SNMPv3
Only when all the RADIUS servers defined globally are unreachable. (ie. even if not called out under WLAN-->AAA - the global RADIUS servers will be used instead of local profile)
checking allow aaa over-ride in the wlan-->advanced.
1. Interfac Configuration --> RADIUS (IETF) --> check 64 (Tunnel Type) - 65 (Tunnel Medium Type) - 81 (Tunnel Private-group-id) 2. Navigate to Group Setup and enable the checkboxes for the previous attributes - where 64=VLAN - 65=802 - 81=<Vlan_tag>
1. CBC-DES 2. CFB-AES-128

41. IAPP roaming protocol
Inter Access Point Protocol uses UDP between aps to exchange information about new aps (announce) in the area and handoffs that have occurred when client roams
1. Captive Portal 2. NAA (agent installed on windows); auth twice (1 to radius 2 to nac) 3. NAA w/ SSO - user authss once. & wlc auths to nac on their behalf.
PKI
100 local accounts max

42. When submitting a CSR from ACS
switchport mode access - dot1x pae authenticator - dot1x port-control auto
1. RSSI 2. SNR 3. Load-Ballancing
on the WLC -1. Configure an Access vlan & check the quarentine vlan - giving it the quarentine vlan tag 2. on wired net connect the Quarenteen vlan to the untrusted NAS interface. 3. Connect the access vlan to the trusted int. on the nas 4. config sn
what must you ensure -1.Exportable 2.Server Auth Cert 3.Store cert in local cert store

43. Switch global config to enable dot1x radius server
1. Integrated -- wIPS monitor mode aps are part of client-serving infrastructure 2. Overlay -- wIPS aps - WCS & WLCs are totally seperate
It handles .1x & NAC auth. with Single Sign on. WLC forwards RADIUS accounting messages (of EAPOL Success) to the NAC upon login - authing the client to nac - & then it goes through posturing
dot1x system-auth-control - aaa new-model - aaa authentication dot1x default group radius - radius serve host 10.1.1.2 auth-port 1812 acct port 1813 key <key>
AES-Key Wrap

44. What is 802.11w?
when you want some wlcs to be part of the same mobility group - but not others.
1. Scanning - for other aps in the area 2. exchanging 802.11 auth messages (first from client then from ap) w/ the target ap 3. exchanging re-association messages with target ap 4. dot1x master key (PMK) negotiation 5. key derivation - 4way handshake
MFP-1 protects infrastructure from management frame attacks (ie aps only). MFP-2 Protects both infrastructure & clients
MFP

45. Steps to setting up an out-of-band virtual gateway NAS setup
UDP 5246 & 5247
Check Shell(exec) then define roles as role1=MANAGEMENT role2=WLAN role3...etc
mping = tests intercontroller control traffic. eping = tests intercontroller data traffic (EoIP)
on the WLC -1. Configure an Access vlan & check the quarentine vlan - giving it the quarentine vlan tag 2. on wired net connect the Quarenteen vlan to the untrusted NAS interface. 3. Connect the access vlan to the trusted int. on the nas 4. config sn

46. 2 different types of wIPS deployment
1. Integrated -- wIPS monitor mode aps are part of client-serving infrastructure 2. Overlay -- wIPS aps - WCS & WLCs are totally seperate
802.11w
EAP-FAST with anonymous pac provisioning
1. CBC-DES 2. CFB-AES-128

47. How does CCKM simplify PMK Caching
MFP
checking allow aaa over-ride in the wlan-->advanced.
1. PMK is only valid for 1 hour -- CCKM creates a main key & derives secondary keys. These secondary keys are sent to all wlc/aps.
Inter Access Point Protocol uses UDP between aps to exchange information about new aps (announce) in the area and handoffs that have occurred when client roams

48. What must be configured the same for an HREAP not to disconnect clients when failing over (or back) to a WLC
1. client -> authenticator: eapol_start 2. authenticator -> client: eap request/identity 3. client -> authenticator: eap response/identity 4. authenticator -> aaa: radius access request 5. aaa -> client: eap-tls handshake 6.aaa -> authenticator: radi
x509v3 certificate
1. Captive Portal 2. NAA (agent installed on windows); auth twice (1 to radius 2 to nac) 3. NAA w/ SSO - user authss once. & wlc auths to nac on their behalf.
1. VLAN Mapping 2. WLAN Ordering 3. WLAN Configuration

49. What is Ciscos gold confidence level deployment of wIPS aps in a walled environment
Allows intel clients to request a neighbor list at will.
assigning multiple vlans to single wlan - and users are dynamically mapped to one of the vlans in round-robin
Nac Guest Server - used for provisioning guest accts - detailed usage reporting - delivery of creds via emai/sms -
1 AP per 15 -000 sq. feet.

50. What is the caveat to having redundant anchor controllers
clients are load ballanced between them - this can not be configured otherwise.
WLC can detect 802.11 attacks - but not other attacks from valid wireless clients.
mfp-v2
assigning multiple vlans to single wlan - and users are dynamically mapped to one of the vlans in round-robin