Changes

*Invitation Professor at Seoul National Univ. of Technology The Graduate School of Public Policy and IT '''(2006-2007)'''

*Invitation Professor at Seoul National Univ. of Technology The Graduate School of Public Policy and IT '''(2006-2007)'''

*President at NIDA '''(2007-Present)'''

*President at NIDA '''(2007-Present)'''

 

*He served on the advisory committee of Global [[IPv6]] summit in 2008<ref>[http://www.ipv6.or.kr/summit2008/e_html/sub008.html ipv6.or.kr]</ref> and in 2009<ref>[http://www.ipv6.or.kr/summit2009/e_html/sub008.html ipv6.or.kr]</ref>

*He served on the advisory committee of Global [[IPv6]] summit in 2009.<ref>[http://www.ipv6.or.kr/summit2009/e_html/sub008.html ipv6.or.kr]</ref>

*He has been a memeber of KARUS.<ref>[http://www.karus.or.kr/jap/sub_04.asp karus.or.kr]</ref>

== Education ==

== Education ==