LIPS: A laptop docking service for public network ports
LIPS is a drop-in service that uses Dynamic Host Configuration
Protocol (DHCP) to provide dynamic assignment of IP addresses for laptops
connected to LIPS-managed public network ports. In April 1999, the pilot
service was introduced
in the Main Library stacks.
The Main Library no longer offers LIPS, but the service has been
public ports located in Minor Hall and
the Bioscience and Natural Resources Library.
Currently registered UC Berkeley students, faculty, and staff are eligible to use this service.
Under LIPS, when you start up your laptop while connected to a public
network port, a DHCP server will assign an IP address
and other network parameters appropriate to the subnet you're connecting to.
Your laptop will need to have DHCP client software installed so that
autoconfiguration can take place. Most newer flavors of Windows (95, 98, NT, 2000)
and recent versions of the Macintosh OS come installed with the software
and should work without any problems.
In the Bioscience and Natural Resources Library, LIPS ports can be found
at tables and study carrels located throughout the library.
This project was first
described in the Sept-Oct 1998 Berkeley Computing and Communications bulletin
Campus DHAA (Dynamic Host Address Assignment) testbed project
re-christened in the Nov-Dec 1998 issue, as the
Laptop IP Service
Registering and Configuring your laptop for LIPS
The DHCP server will only respond to known computers,
so you will need to first register your laptop in order to use LIPS.
The following Operating Systems have been tested under the LIPS service:
Windows '95,'98, NT, 2000.
Other systems can be configured for
this service (e.g. UNIX systems with the necessary DHCP client software),
but no configuration support is available at this time.
For the registration, you will need to know your hardware ethernet
address (also known as the MAC - Media Access Control - address), and
your student, faculty or staff id.
Instructions on how to find the hardware address of your ethernet card,
and on configuring your laptop for LIPS can be found on the web page
Configuring your Computer to use LIPS
To register, you will also need
an SSL (Secure Socket Layer) capable browser, so that the
registration process will encrypt any data sent between you and the server.
Netscape 3.x and higher and Internet Explorer 4.x and higher support SSL.
If you have an SSL-enabled browser, you may proceed to the
LIPS registration web page.
NOTE: Residence Hall students who are registered for the DHCP
service with Residential Computing do not need to sign-up via the
since they have already been registered for LIPS.
Support for LIPS
At this time, support for hardware and software
configuration issues is limited. Electronic mail for "drmicro,"
drop-in visits and phone calls to the IS&T Consulting Office are
discouraged. Please send any questions concerning LIPS to the mailing
Students may obtain some assistance in configuring their laptops
at the Student Consulting Center, located on the 1st floor
of the Moffitt Library Microcomputer Facility. Their hours are
Monday-Friday 10 a.m.- 2 p.m.
"Live" phone help at 643-7536 is available Monday-Friday 10 a.m - 2
The Next Phase
The service will eventually support network connections
at different campus locations, not just public ports in the Library. Users
will also be able to register a static IP address for an office
connection so that they will not have to reconfigure their laptop when
moving between a public port and their office port.
In the next phase,
we will be
exploring ways to improve the user registration process. We are also
procedures for exchanging data between CNS and departmental DHCP servers,
so that users registered within a department will be able to use LIPS-managed
ports without re-registering their laptops.
Data exchange with ResHall servers is a first step in that direction.
Much of the software for verifying access and
to the network ports is based on work done by the Office of Residential Computing
for the public networking
PANDA system in the Residence Halls.
The assistance and cooperation of ResComp and Library staff in the development of
LIPS is gratefully acknowledged.