ITS Data Network Services

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	DNO Home Wireless Networking Using the Yale Wireless Network Acquiring a Wireless LAN Adapter Connecting to the Yale Wireless Network Usage and Security Support and Problem Resolution Wireless Coverage Areas List Residential Colleges Libraries Other Campus Locations Campus Map Wireless Networking Strategy		Wireless Networking at Yale While wireless Ethernet has been available for a number of years, recent developments have combined to significantly increase its popularity. Performance, at 11 Megabit/second, is comparable to the average wired connection. The cost is now reasonable, with wireless interface cards approaching $100 and manufacturers beginning to build wireless capability into laptops. Perhaps most importantly, the increasing popularity of laptops and PDAs is creating a strong demand for wireless connectivity. Information Technology Services believes that while it is not likely to replace the existing wired network, there will be significant demand for campus wireless service over time. Unlike corporate environments much of Yale's population, especially students and faculty, is quite mobile, ranging across many areas of the campus in the course of a day. Increasingly, they have with them laptops and PDAs. The ability to be connected to the Campus Network and Internet from almost anywhere on campus could significantly increase productivity and creativity. As a result of a generous donation by alumni Norman Selby TD '74 and Melissa Vail MC '74, ITS initiated a pilot project in January 2001 to provide wireless network access in designated public spaces in Berkeley and Calhoun Colleges, Sterling Memorial and Cross Campus Libraries, the Cross Campus Lawn, and the Computer Science and Engineering departments. Because this was a relatively new technology, the pilot also provided for the loan of a limited number of wireless network cards to Berkeley and Calhoun students and some faculty. The success of the pilot has led to significant expansion funded by DNO and School/Department operating budgets in addition to continued funds from the original Selby/Vail donation. Wireless technology continues to evolve rapidly, with decreasing costs and improved performance. ITS has developed a strategy and policy that attempts to meet present demand for wireless service in a rapidly changing environment.
	Wireless Networking		Using The Yale Wireless Network Acquiring A Wireless LAN Adapter All Yale Students, Faculty, and Staff may use the wireless network. In order to access the network, you will need a wireless PC card LAN adapter for your laptop computer (and, obviously, an available PC card slot on the computer). The Yale Wireless Network utilizes equipment based upon the IEEE 802.11b standard. The standard currently provides shared LAN access at 11 Megabits/second. Any wireless LAN adapter certified as 802.11b compliant by the Wireless Ethernet Compatibility Alliance should work with the Yale Wireless Network. ITS has successfully tested the following adapters: For Windows systems: Lucent/Agere Orinoco PC Card/Gold Xircom CWE1130-NA Cisco Aironet 350 Intel PRO/Wireless 2011B LAN PC Card For MacOS systems: Apple Airport Card These cards are available for personal or Yale Departmental purchase from CDW and Apple via the Yale ePortal purchasing system.
	Wireless Networking		Connecting To The Yale Wireless Network Once you've installed the wireless LAN card in your computer following the manufacturer's directions you'll need to configure it with the Yale "Network Name". Open the configuration utility for your wireless LAN card and set the Network Name (called "SSID" by some manufacturers) to the following: yale wireless The wireless LAN adapter requires its own IP address separate from the one associated with the computers wired ethernet interface. Registering the wireless LAN adapter with Yale's central DHCP servers allow the adapter to dynamically obtain a proper IP address at any location on campus. If you do not register for DHCP service, you will be able to use resources on the Yale Campus Network but will not be able to access the Internet. Students may register via the Student Network Registration Page. You may do this in either of two ways: Take your computer with the wireless LAN adapter installed to an area that has wireless coverage. Access the webpage and register in the normal fashion. The system will automatically read the ethernet hardware address of your card and register it to obtain a "roaming" IP address. Register while connected via your (or any) computers wired interface. Under "Registration Options" select "Register A Different Computer". You will need to know the ethernet hardware address of your wireless LAN card and enter it manually. This is a 12 character string of numbers and letters printed on the back of the card. The manufacturers refer to it in different ways: Apple - "Airport ID" Lucent - "MAC address" Cisco - "MAC ID" Xircom - "S/N" Faculty and staff will need to contact their local support provider to have the wireless LAN adapter registered for them: Faculty - Department Computing Consultants Staff - Distributed Support Providers
	Wireless Networking		Usage And Security Current wireless technology does not provide dedicated bandwidth per machine as do switched wire networks. The bandwidth available will vary as a function of the number of users in a given coverage area and your machines distance from the wireless transceiver (Access Point). For these reasons we stress that while providing welcome mobility, wireless networks do not currently provide performance on a par with wired networks. While perfectly acceptable for email and some web browsing it is not suitable for high-demand applications such as video/audio streaming, access to University financial applications, or large file transfers. Wireless networks also provide a somewhat lower level of security than wired networks. Users should consider wireless networks insecure and take steps to secure passwords and/or utilize the Yale VPN server.
	Wireless Networking		Support and Problem Resolution Students As with the wired network, College Computing Assistants will provide the first line of support. They will attempt to resolve laptop problems and will report network failures or performance issues to ITS Data Network Operations (DNO). DNO will resolve such problems as soon as possible with the caveats that any simultaneous problems with the wired network will take precedence and, given the fact that this is a pilot, we may need or want to perform extended testing before returning the network to service. Faculty & Staff Contact your local support provider: Faculty - http://www.yale.edu/fsp/dcc.html Staff - http://www.yale.edu/support/dsp
	Wireless Networking		Wireless Coverage Areas Campus Map When working in wireless mode, you will be able to move between coverage areas in each building. You will lose and regain connectivity as you move between the Wireless Access Points. If you to move between buildings, you will need to reboot your machine to regain connectivity. Residential Colleges Berkeley College Dining Hall Swiss Room Commons Room Courtyard Library Master's Office Suite Seminar Room Reading Room Computer Room Multipurpose Room Laundry Arts & Crafts Game Room Music Room Courtyard (LIMITED COVERAGE) Branford College Dining Hall and Common Room Library Large Courtyard Calhoun College Basement Seminar rooms adjacent to the Music Room Main Dining Hall, including Fellows Dining Room First Floor Seminar Room (near Entryway D) Library and adjacent Study Computer Rooms (fifth floor) The "Castle" Calhoun Courtyard Davenport College Dining Hall and Common Room Library Large Courtyard Timothy Dwight College Dining Hall and Common Room Library Courtyard Rosenfeld Commons Room Jonathan Edwards College Dining Hall and Common Room Library Courtyard Morse College Dining Hall and Common Room Library Courtyard New Residence Hall Common Room, Courtyard Cafe, Room 010 Meeting Rooms: 204, 237, 304, 337, 404, 437 Old Campus Bingham - basement- 300 College St Pierson College Dining Hall and Common Room Library Courtyard Saybrook College Dining Hall and Common Room Library Both Courtyards Silliman College Dining Hall and Common Room Library Courtyard Ezra Stiles College Dining Hall and Common Room Library Courtyard Trumbull College Dining Hall and Common Room Library Courtyard Libraries Arts Library - 180 York Street Sterling Memorial Library American Studies Reading Room Andrews Study Basement Stacks Francke Periodical Reading Room Machine City Music Library (2nd Floor and Basement areas) Nave Newspaper Reading Room Philosophy Reading Room Second Floor Stacks Selin Courtyard Slavic Reading Room Starr Reading Room Cross Campus Library Carrels and Study rooms on upper and lower levels of the North Side ("Laptops Allowed" area) Cross Campus Lawn Beinecke Rare Book Library Main Reading Room Main Level Chemistry Library, Sterling Chemistry Lab Drama Library, 222 York Street Engineering Library Forestry Library, Sage Hall Geology Library, Kline Geology Lab Kline Science Library Reading Room Stacks Law Library Math Library, LOM Mudd Library 1st, 2nd, 3rd Floor Reading Rooms Social Sciences Library, 140 Prospect St. Other Campus Locations Dining Halls Commons HGS Program Room (119) KBT SOM Engineering Becton Library Becton Courtyard Becton Faculty Lounge Becton, Room C037 Davies Auditorium Foyer Dunham, Room 103, 324 and Cluster Mason Seminar Room 107 Mason, Room B5, B7 Computer Science Second Floor, Prospect St. Side Third Floor Fourth Floor Fifth Floor, Prospect St. Side HGS - Hall of Graduate Studies McDougal Center: Blue Dog Cafe and Common Room Dining Hall Helen Hadley Hall 1st Floor Common Room Student Organization Center, 29-45 Broadway School of Management Chapel Street Yale Center for British Arts - 1080 Chapel - building wide Crown Street 341 Crown, 1st floor Edwards Street 340 Edwards, 2nd floor High Street 56 High Street - room 101 Hillhouse 1 Hillhouse, 1st and 3rd floors 12 Hillhouse, LOM, Rms 201, 205, 214, 401 and library 24 Hillhouse, 2nd fl 28 Hillhouse Ave, basement, 2nd and 3rd fls 34 Hill House - Luce Hall, Auditorium Mansfield Street 14 Mansfield - 1st and 2nd floors, Hammond Hall Prospect 124 Prospect, basement conference room 165 Prospect - Osborn Memorial Laboratories - Rooms: 111, 203, 212 and 221 217 Prospect - Sloane Physics Laboratory - 3rd floor 360 Prospect, ground floor, Marsh Hall 393 Prospect - Betts house, basement and 1st flrs Sachem ESC building, 21 Sachem 2nd floor Temple 433 Temple, 1st and 2nd fls 127 Wall Street SLB, Public Areas Whitney Avenue 2 Whitney Grove 2nd, 5th, 6th, 7th and 8th Floor Conference Rooms 155 Whitney Ave. 3rd Floor Conference Room (310) 2nd Floor Conference Rooms (216, 220, 242) 170 Whitney Ave Peabody, Auditorium 175 Whitney Ave Rotunda Area (1st & 2nd Floor) Rear Office Area 210 Whitney Ave - Kline Geology Laboratory 3rd Flr Classroom 221 Whitney Ave. 1st, 2nd, 3rd, 4th, 5th, 6th Floors York Street 180 York - Arts Library 3rd, 5th, 6th, 7th Floors 204 York Graduate and Professional Student Center 222 York Room B1 and B2 (classrooms)

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