REN Gang

Associate Research Professor

Email：rengang@cernet.edu.cn

Ph.D., Computer Science and Technology, Tsinghua University, 2009

Next Generation Internet Architecture and Security

Source Address Validation Architecture (SAVA) and Key Technologies

Network Measurement

Research efforts primarily focus on the following domains: next-generation Internet architecture and security, Source Address Validation Architecture (SAVA) and key technologies, and network measurement.
In the field of source address validation: Co-proposed the Source Address Validation Architecture (SAVA) for the next-generation Internet. Promoted the establishment of the SAVI Working Group within the Internet Engineering Task Force (IETF). Authored RFC 5210, the first non-Informational category international standard from China in the IETF. Participated in all related national projects in this field from the 10th Five-Year Plan period to the 14th Five-Year Plan period, undertaking projects funded by the National Natural Science Foundation of China (NSFC), sub-projects of national laboratories, and the National Key R&D Program. Received honors including the First Prize of the National Science and Technology Progress Award, the Special Prize of the Chinese Institute of Electronics (CIE), the Top 10 Science and Technology Advances in Chinese Universities, and the First Prize of the Ministry of Education (MOE).
In the field of next-generation Internet architecture and security: Undertook projects commissioned by the Cyberspace Administration of China (CAC), designing security-related architectures for the next-generation Internet. Authored IPv6 security-related solutions and reports for entities such as the Ministry of Industry and Information Technology (MIIT) and the National Computer Network Emergency Response Technical Team/Coordination Center of China (CNCERT/CC).Long-term instructor of the graduate course "Next-Generation Internet and Its Security". Co-authored the monograph "Next-Generation Internet".
In the field of network measurement: Focused research on IPv6 active address discovery, including: probe optimization in seed-rich areas, probe methodologies in seed-sparse areas and artificial intelligence (AI)-based probing techniques. Findings have been presented many times at conferences organized by the Asia Pacific Network Information Centre (APNIC).

1. First Prize of the National Science and Technology Progress Award
Next-Generation Internet Source Address Validation Architecture (SAVA) Key Technologies and Large-Scale Application
Recipients: WU Jianping, LI Xing, LI Chongrong, LIU Ying, XU Ke, REN Gang, YIN Xia, LI Hewu, XU Mingwei, CUI Yong, LI Dan, WANG Jilong, XIE Chongfeng, GU Yunan, LIN Tao
Awarded in 2024

2. Special Prize of the Chinese Institute of Electronics (CIE)
Authentic Source Address Validation Architecture, Key Technologies, and Large-Scale Application for the Next-Generation Internet
Recipients: WU Jianping, BI Jun, LI Xing, LI Chongrong, LIU Ying, XU Ke, REN Gang, YIN Xia, LI Hewu, XU Mingwei, CUI Yong, LI Dan, XIE Chongfeng, GU Yunan, LIN Tao
Awarded: 2020

3. First Prize of the Technological Invention Award, Ministry of Education (MOE)
Key Technologies for Internet Authentic Source Address Validation and Their Application
Recipients: WU Jianping, BI Jun, LI Xing, LI Chongrong, XU Ke, REN Gang
Awarded: 2013

4. Second Prize of the China Institute of Communications (CIC)
Key Switch Technologies Supporting IPv6 Source Address Validation
Recipients: BI Jun, HU Ping, REN Gang, DUAN Haixin, XU Ke, WANG Zhiliang, LIU Wu, YAO Guang, LIN Pingping, LIU Bingyang
Awarded: 2010

5. Top 10 Science and Technology Advances in Chinese Universities
*International Standard RFC 5210 (IPv6 Source Address Validation Architecture and Testbed) - A Core Technology for the Next-Generation Internet*
Recipients: WU Jianping, BI Jun, LI Xing, REN Gang, XU Ke
Awarded: 2008

6. Second Prize, Education and Research Track, 2nd IPv6 Technology Application Innovation Competition / 7th Next-Generation Internet Technology Innovation Competition
*Global IPv6 Address Scanning System Based on Real-Time Pattern Generation and Genetic Algorithm Optimization*
Students: ZHANG Wei, YANG Haoxiang
Supervised by: REN Gang, YIN Xia, HE Lin
Awarded: 2024

Representative Publications, International Standards, Monographs, and Conference Presentations:

1. Jianping Wu, Gang Ren, Xing Li，Source address validation: architecture and protocol design，ICNP 2007

2. Jianping Wu, Gang Ren, Xing Li，Building a next generation Internet with Source Address Validation Architecture, Science in China, Series F:Information Sciences，2008

3. Jianping Wu, Jun Bi, Xing Li, Gang Ren, Ke Xu, Mark Williams. A Source Address Validation Architecture (SAVA) testbed and deployment experiences. IETF RFC 5210，2008

4. Ying Liu, Qian Wu, Gang Ren. Next-Generation Internet. Publishing House of Electronics Industry, 2012.

5. Ying Liu, Gang Ren*, Jianping Wu, Shenglin Zhang, Lin He, Yihao Jia, Building an IPv6 address generation and traceback system with NIDTGA in Address Driven Network, SCIENCE CHINA-Information Sciences. 2015

6. Yihao Jia,Ying Liu, Gang Ren*, Lin He，Revisiting inter-AS IP Spoofing Let the Protection Drive Source Address Validation, IPCCC，2017

7. Yihao Jia, Ying Liu, Gang Ren*，Lin He，RISP: A RPKI-Based Inter-AS Source Protection Mechanism，Tsinghua Science and Technology,2018

8. Lishan Li, Gang Ren, Ying Liu and Jianping Wu，Secure DHCPv6 Mechanism for DHCPv6 Security and Privacy Protection，Tsinghua Science and Technology，2018

9. Ying Liu, Lin He, Gang Ren*，GAGMS: a requirement-driven general address generation and management system, SCIENCE CHINA-Information Sciences，2018

10. Lin He, Gang Ren, Ying Liu. Bootstrapping Accountability and Privacy to IPv6 Internet without Starting from Scratch, INFOCOM 2019

11. Yihao Jia, Ying Liu, Gang Ren*，Address Protection-as-a-Service：An inter-AS Framework for IP Spoofing Resilience，GLOBECOM 2019

12. Lishan Li, Ying Liu, Jianping Wu, Gang Ren，GSDM: Graph-based Scaling Detection Model in Network Function Virtualization，GLOBECOM 2019

13. Lishan Li, Ying Liu, Jianping Wu, Gang Ren，NFVMP: An Architecture for NFV Applications from Multiple Providers，APNOMS 2019（Best Paper Award）

14. Lin He, Peng Kuang, Ying Liu, Gang Ren, Jiahai Yang, Towards Securing Duplicate Address Detection Using P4, Computer Networks, 2021

15. Lin He, Gang Ren, Ying Liu, Jiahai Yang. PAVI: Bootstrapping Accountability and Privacy to IPv6 Internet, IEEE/ACM Transactions on Networking, 2021

16. Lin He, Gang Ren, Ying Liu, Guanglei Song, Jinlong E, Jiahai Yang, and Mingwei Xu，SAV6: A Novel Inter-AS Source Address Validation Protocol for IPv6 Internet，IEEE Network，2022

17. Wei Zhang, Gang Ren，Xia Yin, Lin He，Comprehensive measurement of IPv6 address interface identifier pattern in current IPv6 deployment, APNIC 58，2024

18. Xinzhe Liu, Yahui Li, Han Zhang, Xia Yin, Xingang Shi, Zhiliang Wang, Gang Ren, Jiangyuan Yao，Scalable and Interpretable Multilayer Overlay Network Checking via Ensemble Verification，SIGCOMM Poster，2024

19. Wei Zhang, Gang Ren, Xia Yin, Lin He. Analysis of IPv6 Adoption in Different Perspectives and a case study with BitTorrent，APNIC 59，2025

20. Gang Ren, Shuqi Liu, Xia Yin，Inter-domain Source Address Validation based on AS relationships，IETF draft，2025