Which of the following is a step in deploying a WPA2-Enterprise wireless network?
A. Install a token on the authentication server
B. Install a DHCP server on the authentication server
C. Install an encryption key on the authentication server
D. Install a digital certificate on the authentication server
Correct Answer: D
Section: Network Security
When setting up a wireless network, you’ll find two very different modes of Wi-Fi Protected Access (WPA) security, which apply to both the WPA and WPA2 versions.
The easiest to setup is the Personal mode, technically called the Pre-Shared Key (PSK) mode. It doesn’t require anything beyond the wireless router or access points (APs) and uses a single passphrase or password for all users/devices.
The other is the Enterprise mode —which should be used by businesses and organizations—and is also known as the RADIUS, 802.1X, 802.11i, or EAP mode. It provides better security and key management, and supports other enterprise-type functionality, such as VLANs and NAP. However, it requires an external authentication server, called a Remote Authentication Dial In User Service (RADIUS) server to handle the 802.1X authentication of users.
To help you better understand the process of setting up WPA/WPA2-Enterprise and 802.1X, here’s the basic overall steps:
Choose, install, and configure a RADIUS server, or use a hosted service.
Create a certificate authority (CA), so you can issue and install a digital certificate onto the RADIUS server, which may be done as a part of the RADIUS server installation and configuration. Alternatively, you could purchase a digital certificate from a public CA, such as GoDaddy or Verisign, so you don’t have to install the server certificate on all the clients. If using EAP-TLS, you’d also create digital certificates for each end-user.
On the server, populate the RADIUS client database with the IP address and shared secret for each AP.
On the server, populate user data with usernames and passwords for each end-user.
On each AP, configure the security for WPA/WPA2-Enterprise and input the RADIUS server IP address and the shared secret you created for that particular AP.
On each Wi-Fi computer and device, configure the security for WPA/WPA2-Enterprise and set the 802.1X authentication settings.
A: A token is not required on the authentication server when configuring WPA-Enterprise.
B: DHCP (Dynamic Host Configuration Protocol) does not have to be installed on the authentication server. You don’t have to use DHCP at all although it is easier if you do. However,
DHCP is usually configured on a dedicated device, not on the authentication server.
C: You don’t install an encryption key on the authentication server when configuring WPA-Enterprise. You install a digital certificate. The private key of the certificate is then used to
create secure connections.