The protocol, which resides on a router at the edge of an IPv6 network, assigns a prefix to each IPv6 address to identify it as a 6to4 address.

CNN: New protocol sneaks IPv6 traffic over the 'Net

His company has released a scanning tool to find vulnerable UPnP devices, and suggests users disable UPnP on both any endpoint devices that use the protocol on their internal network as well as their Internet router.

FORBES: Disable This Buggy Feature On Your Router Now To Avoid A Serious Set Of Security Vulnerabilities