Colby Collier

Network Engineer

Colby Collier is a Network Engineer based in Nashville, TN.  He is a Cisco Certified engineer and is a Routing/switching/security nerd.  Also known to dabble in System Administration and video.  Colby currently holds the following certifications: CCNP, CCNA, CCENT, Cisco DMB Specialization for Engineers, VCA-DVC, JNCIA, MCITP: EA, MCITP: SA, MCITP: Enterprise Desktop Support Technician, MCTS: Microsoft SQL Server 2008,  A+, Network+, Security+.

Colby is currently pursuing his CCIE certification. He has passed the written exam and plans to sit the lab in Q3-Q4 2014.


August 12, 2014


Dynamic Multipoint VPN (DMVPN) Setup.

5 min read

Since DMVPN has been added to the CCIE v5 BluePrint (http://www.cisco.com/web/learning/exams/docs/ccieRS_Lab5.pdf) I figured that now was just as good of a time as any to write this blog. DMVPN stands for Dynamic Multipoint VPN and it is an effective solution for dynamic secure overlay networks. DMVPN is combination of the following technologies: Multipoint GRE (mGRE) […]