AirPort is a local area wireless networking system from Apple Computer based on the IEEE 802.11b (which runs at 11Mbps) standard (also known as Wi-Fi) and certified as compatible with other 802.11b devices. A later family of products based on the IEEE 802.11g (which runs at 54Mbps) specification is known as AirPort Extreme, offering speeds up to 54 megabits per second and interoperability with older (802.11b) products.
AirPort and AirPort Extreme in common usage can refer to the protocol (802.11b and 802.11g, respectively), the expansion card or the base station.
In Japan, AirPort is known as AirMac due to trademark conflicts.
When logging into a non-Mac machine into an airport runniwn WEP you will need to translate the WEP password into Hex. This can be achieved by clicking on the password icon in the menu bar.
Airport express and Airport extreme have a firmware limitation that limits the amount of concurrent connected users. Airport Express is limited to 10 concurrent users and the Airport Extreme is limited to 50 users.
Select “Enable interference robustness” when the base station is in an environment with other 2.4 Ghz devices that can interfere with your network. Devices that can cause interference include cordless telephones, some television repeaters, and microwave ovens.
The GUI interface of Airport Admin only allows for 1 port at a time to be directed to an internal IP.
Airport uses WDS. A Wireless Distribution System is a system that enables the interconnection of access points wirelessly. As described in IEEE 802.11, it allows a wireless network to be expanded using multiple access points without the need for a wired backbone to link them. Base stations connected thru WDS cannot share their internet connection with other remote base stations. WDS can automatically be configured by the main base station as long as you have all of the airports with their default settings and default passwords. WDS lists are built and tracked using airport IDs.
All base stations in a Wireless Distribution System must be configured to use the same radio channel, and share WEP keys if they are used. They can be configured to different service set identifiers. Since WDS needs all wireless stations to be on the same channel, changing the channel will break WDS.
PPPoE, Static IP, DHCP, WDS are all types of internet connections. PPTP is a VPN protocol. A virtual private network (VPN) is a private communications network often used within a company, or by several companies or organizations, to communicate confidentially over a publicly accessible network. VPN message traffic can be carried over a public networking infrastructure (e.g. the Internet) on top of standard protocols, or over a service provider’s private network with a defined Service Level Agreement (SLA) between the VPN customer and the VPN service provider.
PPPoE only requires Account name and User Password for a connection. PPPoE is primarily a DSL type of connection is used to only provide authorized access to the internet connection.
Which is NOT an option for the LAN Addressing when setting up DHCP Ranges?
There are three classes of internal IP addresses. A,B,C. Class A has range of 10.0.0.1 – 10.255.255.255 with a subnetmask of 255.0.0.0 which translates to about 16,777,215 addresses. Class B has a range of of 172.16.0.1 – 172.31.255.254 with a subnetmask of 255.255.0.0 which translates to about 1,048,576 addresses. Class C has a range of 192.168.0.1 – 192.168.255.254 which translates to about 65,536 addresses. Every address with a prefix with of 10., 172., or 192., is an internal IP.
DHCP needs to be turned on to be able to use the NAT feature. NAT might prevent users from printing to appletalk printers due to appletalk being an unroutable service. Distribute IP addresses needs to be uncheck if appletalk printing is needed.
Using airports in conjunction with a RADIUS server allows for a stronger layer of authentication. Remote Authentication Dial In User Service (RADIUS) is an AAA (authentication, authorization and accounting) protocol for applications such as network access or IP mobility. It is intended to work in both local and roaming situations
A SSID is visible by default. By checking the “Create a Closed Network” button you will be hiding the SSID. In order to connect to a hidden SSID network, you must select “other” from the airport dropdown menu.
Access control feature on the Airport is used to allow only authorized MAC addresses wirelessly access to the Airport. This feature does not support access control on the wired interface. This is not very secure since there are ways to spoof MAC addresses. Airport allows for exporting of the list for backup purposes or for importing to another base station.
As a feature Airport offers parental controls for AOL as long as the AOL client is installed and configured properly.
DMZ is available on the airport by selecting the “Enable Default Host at” check box in the base station options.
Updating the firmware is simple and easy. If the interface prompts you for a firmware upgrade, simply hit the upload button to upgrade the firmware.
When sharing printers on an airport or airport express use the bonjour protocol to setup the printers.