Hi there, I'm trying setup a IPv6 tunnel on my pfsense router with 2.2.2-RELEASE version. Sadly there is no official package for AICCU for pfsense. I tried using the FreeBSD package sixxs-aiccu which worked so far, but I don't want to use "inofficial" packages. My goal is to use the tools I have with pfsense to establish the tunnel. For that i'm trying to use the GIF-interface. I changed the tunnel-settings from AYIYA to 6in4-heartbeat and enabled IPv4+6 ICMP pings on the interfaces. I followed the tutorial multiple times: https://doc.pfsense.org/index.php/Using_IPv6_with_a_Tunnel_Broker But I can't get a single ping to the IPv6 gateway.The tunnel-information shows a fresh timestamp on "last alive" and an old one on "last dead". So I guess that says: SixXs can ping me through the tunnel and with IPv4. I tried the same using a HE.net tunnel and it worked. I'm sure my settings are correct and I prefer the SixXs tunnel before HE.net. Can you see something wrong from your side? TunnelID is T167105