I've been in data communications for years, with experience in technologies from old SNA to current VPNs, and about everything in between. I've designed and supported small to large networks, as well as taught many Cisco courses for multiple years. (I'm CCSI #94069 and originally certified in 1994). My current technical interests include security and VPN technology, and I was recently the network architect for a successful disaster recovery / security implementation that supports 250+ VPN remote sites connecting to redundant IPSec routers at a central site. Originally, I started reading and posting to network forums as one mechanism to help me ramp up for my CCIE certification (#4615 which I earned in 1999). While I was teaching Cisco courses, I liked listening to my students and suggesting possible approaches to solve their production issues. Since I'm not teaching many classes now I decided to use the NetPro forums to help keep me sharp in various technical areas as well as to help others. I like contributing, and I find I can answer a bunch of the questions quickly. For the 'harder' questions, I personally get a great deal of satisfaction from digging into topics that I haven't refreshed on for awhile. I really enjoy working for Chesapeake Netcraftsmen, they are a great group of fun and smart people (including 8 CCIEs). We have consulting and training expertise in high-end routing and design, switching, VoIP, QoS, MPLS, network management, security, IP multicast, course and lab development, and other areas.