Based on an idea found in the Live Community of Palo Alto, I created a network topology icon (stencil) inspired by the Cisco topology icons. The color and style match the standard Cisco ASA (PPT Colors?) and will fit perfectly in a Cisco schema.
Omnigraffle stencil:
Palo Alto Topology.gstencil
SVG file (best for Visio):
Palo Alto Topology.svg
EPS file:
Palo Alto Topology.eps
Example:
How can I open this in visio?
I’ve added an SVG version that will work with Visio. I’m not a Visio user, tell me if you have further problem.