Cisco Cisco Aironet 1130 AG Access Point 릴리즈 노트

This is the command that appears in a default configuration:

ap(config-if)# dfs band 3 block

This example shows how to prevent the access point from selecting frequencies 5.150 to 5.350 GHz 
during DFS:

ap(config-if)# dfs band 1 2 block

This example shows how to unblock frequencies 5.150 to 5.350 for DFS:

ap(config-if)# no dfs band 1 2 block

This example shows how to unblock all frequencies for DFS:

ap(config-if)# no dfs band block

Networks must be protected from security threats, such as viruses, worms, and spyware. These security 
threats disrupt business, causing downtime and continual patching. Endpoint visibility and control is 
needed to help ensure that all wired and wireless devices attempting to access a network meet corporate 
security policies. Infected or vulnerable endpoints need to be automatically detected, isolated, and 
cleaned.

NAC is designed specifically to help ensure that all wired and wireless endpoint devices (such as PCs, 
laptops, servers, and PDAs) accessing network resources are adequately protected from security threats. 
NAC allows organizations to analyze and control all devices coming into the network. By ensuring that 
every endpoint device complies with corporate security policy and is running the latest and most relevant 
security protections, organizations can significantly reduce or eliminate endpoint devices as a common 
source of infection or network compromise.

WLANs need to be protected from security threats such as viruses, worms, and spyware. Both the NAC 
Appliance and the NAC Framework provide security threat protection for WLANs by enforcing device 
security policy compliance when WLAN clients attempt to access the network. These solutions 
quarantine non-compliant WLAN clients and provide remediation services to help ensure compliance.

Release 12.3(8)JEA provides NAC support for MBSSID. A client, based on its health (software version, 
virus version, and so on) is placed on a separate VLAN that is specified to download the required 
software to upgrade the client to the software versions required to access the network. Four VLANs are 
specified for NAC support, one of which is the normal VLAN where clients having the correct software 
version are placed. The other VLANs are reserved for specific quarantine action and all infected clients 
are placed on one of these VLANs until the client is upgraded. 

Each SSID has up to 3 additional VLANs configured as “unhealthy” VLANs. Infected clients are placed 
on one of these VLANs, based on how the client is infected. When a client sends an association request, 
it includes its infected status in the request to the RADIUS server. The policy to place the client on a 
specific VLAN is provisioned on the RADIUS server.

When an infected client associates with an access point and sends its state to the RADIUS server, the 
RADIUS server puts it into one of the quarantine VLANs based on its health. This VLAN is sent in the 
RADIUS server Access Accept response during the dot1x client authentication process. If the client is 
healthy and NAC compliant, the RADIUS server returns a normal VLAN assignment for the SSID and 
the client is placed in the correct VLAN and BSSID.

Each SSID is assigned a normal VLAN, which is the VLAN on which healthy clients are placed. The 
SSID can also be configured to have up to 3 backup VLANs that correspond to the quarantine VLANs 
on which clients are placed based on their state of health. These VLANs for the SSID use the same 
BSSID as assigned by the MBSSID for the SSID.