Ask Hank

16 min read

Explore the IPSEC VPN tunnel creation process, including "Phase 1" and "Phase 2," how Security Associations are impacted when ACLs identify "interesting traffic," and even the packets involved in the communications.

4 min read

Learn how to configure policy-based routing to influence forwarding behavior in this step-by-step overview with Hank Preston, Principal Automation Engineer.

10 min read

Take the scare out of spanning tree with a strong foundation in practical network design and configuration practices. You never know when it might come back to haunt you, just like in Hank's spooky story.

1 min read

Want to explore new ways to apply network automation skills to real world network operations and engineering activities? Register to attend Hank's session at DevNet Create.

3 min read

Are you a network engineer turning network automation engineer? Join the DevNet Associate Prep Program for completely FREE access to materials and webinars to take your skills to the next level.

3 min read

Do you have a question about network programming or NetDevOps? Why not "Ask Hank?" In this blog, let's try to demystify RESTCONF use for everyone.

13 min read

Cisco Modeling Labs is a great tool for learning all aspects of networking, including automation. Hank discusses options for making the setup and management of your lab topology fast, easy, and automated.

5 min read

DevNet's Hank Preston digs into another user's question related to model driven programmability. Do you have a question about network automation? You can Ask Hank!

5 min read

Which YANG model to use for your project? Ask Hank takes a look at your options, and how model driven programmability is a foundational technology for the automation engineer.