BIB-VERSION:: CS-TR-v2.0 ID:: ncstrl.dartmouthcs//TR2001-391 ENTRY:: June 02, 2001 ORGANIZATION:: Dartmouth College, Computer Science TITLE:: A Directory Infrastructure to Support Mobile Services TYPE:: Technical Report (paper) REVISION:: 1 AUTHOR:: Khalid, Ammar DATE:: June 2001 RETRIEVAL:: For a paper copy, email RETRIEVAL:: For a paper copy, write to Technical Report Librarian Department of Computer Science Dartmouth College 6211 Sudikoff Laboratory Hanover, NH 03755-3510 USA RETRIEVAL:: Compressed Postscript at http://www.cs.dartmouth.edu/reports/TR2001-391.ps.Z RETRIEVAL:: PDF at http://www.cs.dartmouth.edu/reports/TR2001-391.pdf ABSTRACT:: Traditional Voice-over-IP applications such as Microsoft NetMeeting assume that the user is on a machine with a fixed IP address. If, however, the user connects to the Internet, via a wireless network, on a handheld device, his IP address frequently changes as he moves from one subnet to another. In such a situation, we need a service that can be queried for the most current IP address of a person whom we wish to contact. In this project, we design and implement such a directory service. The service authenticates all callers and callees, is robust against most host failure, and scales to several thousand registered users. NOTE:: Senior Honors Thesis. Advisor: David Kotz. END:: ncstrl.dartmouthcs//TR2001-391