Note: The preceding link was correct as of January 27, 2016. If you find the link is broken, please provide feedback and a VMware employee will update the link.
If you are using VMware vSphere Update Manager, see Installing VXLAN Agent fails with ESX Agent Manager displaying the error: Agent VIB module not installed (2053782).
“Agent VIB module not installed” when installing EAM/VXLAN Agent using VUM