Wireless Lan Controller Web Authentication Bundle Download

Web authentication is a Layer 3 security feature that causes the controller to not allow IP traffic, except DHCP-related packets/ Domain Name System (DNS)-related packets, from a particular client until that client has correctly supplied a valid username and password with an exception of traffic allowed through a pre-auth access control list (ACL). Web authentication is the only security policy that allows the client to get an IP address before authentication. It is a simple authentication method without the need for a supplicant or client utility. Web authentication can be done either locally on a WLC or over a RADIUS server. Web authentication is typically used by customers who want to deploy a guest-access network.

Web authentication starts when the controller intercepts the first TCP HTTP (port 80) GET packet from the client. In order for the client web browser to get this far, the client must first obtain an IP address, and do a translation of the URL to IP address (DNS resolution) for the web browser. This lets the web browser know which IP address to send the HTTP GET.

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When web authentication is configured on the WLAN, the controller blocks all traffic (until the authentication process is completed) from the client, except for DHCP and DNS traffic. When the client sends the first HTTP GET to TCP port 80, the controller redirects the client to (if this is the virtual IP that is configured) for processing. This process eventually brings up the login web page.

You can download a sample Web Authentication script from Cisco Software Downloads. For example, for the 5508 controllers, choose Products > Wireless > Wireless LAN Controller > Standalone Controllers > Cisco 5500 Series Wireless LAN Controllers > Cisco 5508 Wireless LAN Controller > Software on Chassis > Wireless Lan Controller Web Authentication Bundle and download the webauth_bundle.zip file.

For WLC Release 7.2 code, use the config network web-auth secureweb disable command to disable. This only disables HTTPS for the web authentication and not the management. Note that this requires a reboot of the controller!

The operating system of the controller automatically generates a fully functional web authentication certificate, so you do not need to do anything in order to use certificates with Layer 3 web authentication. However, if desired, you can prompt the operating system to generate a new web authentication certificate, or you can download an externally generated SSL certificate.

Web authentication is a Layer 3 security feature that causes the controller to not allow IP traffic (except DHCP-related packets) from a particular client until that client has correctly supplied a valid username and password. When you use web authentication to authenticate clients, you must define a username and password for each client. When the clients attempt to join the wireless LAN, their users must enter the username and password when prompted by a login page.

If you are using a custom web-auth bundle that is served by the internal controller web server, the page should not contain more than 5 elements (including HTML, CSS, and Images). This is because the internal controller web server implements a DoS protection mechanism that limits each client to open a maximum of 5 (five) concurrent TCP connections depending on the load. Some browsers may try to open more than 5 TCP sessions at the same time (For example Firefox 4) if the page contains more elements and this may result in the page loading slowly depending on how the browser handles the DoS protection.

Configuration backups do not include extra files or components, such as the webauth bundle or external licenses, that you download and store on your controller, so you should manually save external backup copies of those files or components.

If the customized webauth bundle has more than 3 separated elements, we advise you to use an external server to prevent page load issues that may be caused because of TCP rate-limiting policy on the controller.

Web Authentication or Web Auth is a layer 3 security method that allow client to pass DHCP & DNS traffic only untill they have passed some form of authentication. This is greatly used in wireless guest access service where no client side configuration required.

Step 1. The Cient enter START state by completing any layer 2 security if necessary

Step 2. After layer 2 Authentication state is complete, the client move to DHCP_REQD state.

Step 3. The client will receive DHCP IP, DNS from the DHCP server. The clients open web browser and PC send a DNS query.

Step 4. The WLC forwards the DNS query.

Step 5. DNS server resolve URL name to IP address.

Step 6. Controller(WLC) forwards the DNS reply.

Step 7. Client Sends HTTP GET to the web server.

Step 8. Controller intercepts the returned web page from the destination web server and sends a redirect to its own internal web server address (virtual interface IP of WLC)

Step 9. The client goes to the login page, passes web authentication and enters the RUN state on the controller.

Step 10. The WLC forwards the client browser to the original web page requested.

In this post we will see how to implement and configure WLC to support internal Webauth.

Web authentication is a Layer 3 security feature that causes the controller to not allow IP traffic (except DHCP and DNS -related packets) from a particular client until that client has correctly supplied a valid username and password.

Web authentication is mostly used to deploy a guest-access network. We must remember that web authentication does not provide data encryption. Webauth is an authentication method without encryption.

The wireless user moves from one AP to another AP connected to another controller in a different subnet or if the clients roam between APs registered to different controllers and the client WLAN on the two controllers is on different subnet, then it is called inter-controller L3 roam.

Windows credentials management is the process by which the operating system receives the credentials from the service or user and secures that information for future presentation to the authenticating target. In the case of a domain-joined computer, the authenticating target is the domain controller. The credentials used in authentication are digital documents that associate the user's identity to some form of proof of authenticity, such as a certificate, a password, or a PIN.

For more information about user mode and kernel mode, see Applications and User Mode or Services and Kernel Mode in this topic.Secur32.dllThe multiple authentication providers that form the foundation of the authentication process.Lsasrv.dllThe LSA Server service, which both enforces security policies and acts as the security package manager for the LSA. The LSA contains the Negotiate function, which selects either the NTLM or Kerberos protocol after determining which protocol is to be successful.Security Support ProvidersA set of providers that can individually invoke one or more authentication protocols. The default set of providers can change with each version of the Windows operating system, and custom providers can be written.Netlogon.dllThe services that the Net Logon service performs are as follows:- Maintains the computer's secure channel (not to be confused with Schannel) to a domain controller.

- Passes the user's credentials through a secure channel to the domain controller and returns the domain security identifiers (SIDs) and user rights for the user.

- Publishes service resource records in the Domain Name System (DNS) and uses DNS to resolve names to the Internet Protocol (IP) addresses of domain controllers.

- Implements the replication protocol based on remote procedure call (RPC) for synchronizing primary domain controllers (PDCs) and backup domain controllers (BDCs).Samsrv.dllThe Security Accounts Manager (SAM), which stores local security accounts, enforces locally stored policies and supports APIs.RegistryThe Registry contains a copy of the SAM database, local security policy settings, default security values, and account information that is only accessible to the system.This topic contains the following sections:

Before starting a service, the service controller logs on by using the account that is designated for the service, and then presents the service's credentials for authentication by the LSA. The Windows service implements a programmatic interface that the service controller manager can use to control the service. A Windows service can be started automatically when the system is started or manually with a service control program. For example, when a Windows client computer joins a domain, the messenger service on the computer connects to a domain controller and opens a secure channel to it. To obtain an authenticated connection, the service must have credentials that the remote computer's Local Security Authority (LSA) trusts. When communicating with other computers in the network, LSA uses the credentials for the local computer's domain account, as do all other services running in the security context of the Local System and Network Service. Services on the local computer run as SYSTEM so credentials do not need to be presented to the LSA.

Remote and wireless network authentication is another technology that uses certificates for authentication. The Internet Authentication Service (IAS) and virtual private network servers use Extensible Authentication Protocol-Transport Level Security (EAP-TLS), Protected Extensible Authentication Protocol (PEAP), or Internet Protocol security (IPsec) to perform certificate-based authentication for many types of network access, including virtual private network (VPN) and wireless connections.

Everyone remembers where they were when they obtained their first controller dongle. For me there have been two standout moments in my life where I feel proud to think about my dongle history, the first of which was when I was around eleven or twelve and I found an IR adaptor for the SNES. Bolting it onto the front of the console via both of the controller ports; the Dual Turbo Wireless Remote System by Acclaim was a revolution in my hands and I could now taste the unparalleled freedom to play wirelessly, within line of sight, and only bound to the finite lifespan of some AA batteries. Paired up with a Super Gameboy and Street Fighter 2; take me back, life was good! 17dc91bb1f