Lyman Chapin is a partner with Interisle Consulting Group, a consortium of individual consulting practices that focus on the secure commercial deployment of Internet technologies.

Until July 2002 he was Chief Scientist at NextHop Technologies, an Internet routing software company. Before joining NextHop in 2001, he was Chief Scientist at BBN Technologies.

Mr. Chapin is a Fellow of the IEEE, and has been an active contributor to global networking and the Internet for 30 years as an architect, implementor, and diplomat. He has served as chairman of the Internet Architecture Board (IAB), the ACM Special Interest Group on Data Communication (SIGCOMM), and the ANSI and ISO standards groups responsible for Network and Transport layer standards, and was a principal architect of the Open Systems Interconnection (OSI) model and protocols. He was a founding trustee of the Internet Society, and in 1997 co-founded the Wiley Networking Council publication series at John Wiley & Sons.

Mr. Chapin currently serves as the USA/ACM representative to the International Federation for Information Processing (IFIP) Technical Committee on Communication Systems (TC6) and to the NATO Science Committee’s networking panel.

Mr. Chapin is the co-author of Open Systems Networking-TCP/IP and OSI, which was published in 1993 by Addison-Wesley. His current professional interests include Internet routing and traffic engineering, naming and addressing, information security and personal privacy, and electronic payment systems. He lives with his wife and two daughters in Hopkinton, MA (USA).

Lyman was selected for the ICANN Board by the Address Supporting Organization for a three-year term starting in October 2001.