Teredo //free\\ -
The genus Teredo consists of highly modified saltwater clams within the family . Despite their name, they are not worms but marine bivalve mollusks that have evolved to bore into and live within wood.
While other tunneling protocols (like 6to4) existed, they had a fatal flaw: They didn't work if you were behind a NAT. teredo
This is the coolest part. A Teredo IPv6 address isn't random; it contains a map of how to find you! The genus Teredo consists of highly modified saltwater
If it says "Media Disconnected," you can try to wake it up: teredo