As a part of my job at Cisco I’ve been looking into Zscaler and their offerings. It started me thinking back to the early days of remote access, and I figured it would make a good topic for Netstalgia. I wrote in the past about how bulletin board systems (BBSs) work, and in another article […]
Tag: vpn
A nauseating outage
When I worked for the Gold partner I generally serviced clients in the San Francisco Bay Area, but because we were a national partner I was occasionally called to other locations around the country. Being a double CCIE who had worked in TAC, I had a unique skill set among our engineers, which was often […]
One big /8
I thought I’d take break from Cisco Live to relive some memories in another Netstalgia. Working in product management at a Cisco business unit, we are constantly talking about the latest and greatest, the cutting edge of technology. It’s easy to forget how many customers out there are nowhere near the cutting edge. They’re not […]
Hub and Spoke with BGP
In my previous post, we saw the theory behind hub-and-spoke VPN. We saw how H/S involves multiple VRFs with cross-importation between them, and we traced the basic flow of a route advertised from one spoke to another. Next, we are going to look at two options for configuring H/S VPNs. In this post, I will […]