John Ronan

By 7th February 2018 No Comments

John Ronan

Tech Lead
P: +353 (0)51 302 938
Personal Summary

John returned to the Infrastructure Group of TSSG in 2006, to the role of systems administrator. Up until then he was working with Cartoon Saloon (a feature-film animation studio based in Kilkenny). While with them he developed and presented a three-year roadmap of IT infrastucture improvements, and personally orchestrated the first phase of these: a major networking and storage upgrade that had to be completed with zero hours of lost production time. This plan now forms the blueprint for Cartoon Saloon’s other ventures, including their new production partnership company, Lighthouse studios.

From November 2015 to April 2016 he was responsible for developing a proof-of-concept network security device. This involved the use of various technologies including AWS, OpenVPN, Ansible, Mikrotik Routers, Raspberry Pi, PHP and the Python language

From 2013 to mid 2015 he was in a start-up company where he spent quite a bit of time in Europe talking to prospective customers and agents. This included and several weeks testing at Deutsche Telecom labs. This resulted in several customers including Reitlanden BV, Port of Amsterdam, and the German government security services. He was responsible for the design, deployment, comissioning of services across all AWS regions, some custom deploymentsfor specific customers, as well as monitoring and management systems for the entire infrastructure and Level 3 support.

From August 2000 until April 2012, John worked various roles within TSSG with a focus on Networking and Security.


2004, Cisco Certified Network Associate, Waterford IT.
2000, MSc. in Computing “Firmware Deployment of Strong Encryption, an Investigation and Implementation”, Waterford IT.
1998 BSc in Computing (Industrial), Waterford IT.
1995 Class A Radio Experimenters License, Cork.
1993 National Certificate in Industrial Computing (Industrial), Waterford IT

  • Ronan and C. O’Connor, A further comparison of different TCP/IP and DTN protocols over the D-Star Digital Data mode, in Proceedings of 30th ARRL and TAPR Digital Communications Conference, pp. 72-79, ARRL, September 2011.
  • Ronan, D. Long, and K. Walsh, More experiments with Delay and Disruption Tolerant Networking over AX.25 Networks, in Proceedings of 30th ARRL and TAPR Digital Communications Conference, pp. 65-71, ARRL, September 2011.
  • Barré, J. Ronan, and O. Bonaventure, Implementation and evaluation of the Shim6 protocol in the Linux kernel, Computer Communications, vol. 34, no. 14, pp. 1685-1695, 2011. (PDF)
  • John Ronan, Cathal O’Connor, A comparison of different TCP/IP and DTN protocols over the D-Star Digital Data mode, 29th ARRL and TAPR Digital Communications Conference, Portland Oregon, September 2010. (PDF)
  • John Ronan, John McLaughlin, An emperical evaluation of a Shim6 implementation, in Proceedings of the 2nd International ICST Conference on Mobile Networks and Management, September 2010. (PDF)
  • Ronan, K. Walsh, D. Long, Evaluation of a DTN Convergence Layer for the AX.25 Network Protocol, in Proceedings of The Second International Workshop on Mobile Opportunistic Networking, (New York, NY, USA), pp. 72-78, ACM 2010 (PDF)
  • Ronan, K. Walsh, D. Long, Experiments with Delay and Disruption Tolerant Networking in AX.25 and D-Star Networks, in proceedings of the 28th ARRL and TAPR Digital Communications Conference, Chicago Illinois, September 2009. (PDF)
  • Ronan, K. Walsh, GAISS – Live Asset Tracking and Statistical Modelling in Missing Person SearchNext Generation Public Safety Communication Networks and Technologies (NGenSafe 09), in conjunction with the IEEE International Conference on Communications (IEEE ICC 2009), Dresden, Germany, 18 June, 2009. (PDF)
  • John Ronan, Sasitharan Balasubramaniam, Adnan K Kiani, Wenbing Yao, On the use of SHIM6 for mobility support in IMS networks, in Proceedings of the 4th International Conference on Testbeds and Research Infrastructures for the Development of Networks & Communities, Innsbruck, Austria, 2008. (PDF)
  • Leigh Griffin and John Ronan, Xen Installation and Configuration, ;login: The USENIX Magazine, February 2007, Volume 32, Number 1. (PDF)
  • Matthew Ford, Jonathan Stevens, John Ronan, Initial Results from an IPv6 Darknet, Internet Surveillance and Protection, 2006. ICISP ’06.   ICISP ’06. International Conference, (Côte d’Azur, France), pp. 13-17, 26-28 August 2006  (PDF)
  • Latif Ladid, Jimmy McGibney, John Ronan, Micheal O’Foghlu; Security and Privacy with IPv6 , Annual Review of Communications, Vol 58, no. 22, pp. 85-90, 2005. (Link)
  • McGibney, M. Ponce de Leon, J. Ronan; SEINIT Security for Heterogeneous Mobile Network Services , eChallenges 2005, Ljubljana, Slovenia, October 2005. (PDF)
  • McGibney, M. Ponce de Leon, J. Ronan; Securing Mobile Services, in 1st Euro Conference on Mobile Government (Euro mGov 2005), I.Kushchu & M. Halid Kuscu, eds.. Sussex University, Brighton UK, 10th-12th July 2005 July 2005. (PDF)
  • Rossebø, J. Ronan, S.Davy An analysis of IPsec deployment performance in high and low power devices., 17th Nordic Teletraffic Seminar, Norway, August 2004. (PDF)
  • Ronan, S.Davy, P. Malone, M. Ó Foghlu Performance Implications of IPsec Deployment, IPS2004 Interdomain Performance and Simulation (Intermon Workshop), Budapest Hungary, March 2004. (PDF)
  • Rossebø, J. Ronan, K. Walsh Authentication Issues in Multi-Service Residential Access Networks Lecture Notes in Computer Science, Volume 2839, Sep 2003, Pages 381 – 395. (PDF)
  • Ronan, P. Malone, M. Ó Foghlu; Overhead Issues for Local Access Points in IPsec enabled VPNs, IPS2003 Interdomain Performance and Simulation (Intermon Workshop), Salzburg Austria, February 2003. (PDF)