Why is Teredo address not pinged under Windows?

Question

Computer networks

It is necessary for certain purposes to use the subject protocol for connections from the outside.
I turn it on in Win7 - everything is fine, qualified writes, pings go to ipv6 hosts.
But... from the outside, this ipv6 address does not want to respond, timeout, for the life of me. Netcat does not hear traffic, it also does not connect from a remote peer. Neither ICMP, nothing like that comes. Firewall disabled. Wireshark sees no traffic.

I am doing the same story on a Linux host with Miredo, on the same machine, with the same configurations, the same teredo server address - everything is fine, the node is visible, pinged, netcat -6 works.

Maybe someone came across, tell me where to dig? The service is needed on the Windows client, and incoming connections.

Answer 1

Attention, the answer:
the problem was in the turned off (sic!) firewall.
To accept incoming connections through Teredo, the firewall must be enabled . Plus, the Allow Edge Traversal option must be specified in the rule for the application.

Answer 2

And how to activate the firewall? I have everything by default. And which application has Allow Edge Traversal?