I am trying to setup two identical 4331 to do interchassis redundancy with NAT and ZBF in a High Availability configuration.  Both devices are running the same IOS-XE (16.12.04) with SEC licensing.   I have followed several guides and videos online t...

I have an issue with spokes on a DMVPN.   The spokes are setup using VRF-Lite to route traffic for the DMVPN out the local ISP while also routing traffic from the local LAN back across the DMVPN to a core router.   The problem i am having is that i c...

Has anyone noticed that there is a bogus website http://serialnumbervalidation.com/64253/cgi-bin/index.cgi that claims to check for the Clock Signal Compenant failure but returns inconsistent results?  It returns "not affected" no matter what you typ...