Greetings fellow IPv6ers! I am having a bit of a problem with my OpenBSD 6.5 gif0 tunnel. The tunnel keeps going down and I have to ping to bring it back up. It shows up in an ifconfig command. I even manually set the mtu to 1480 to match HE's settings. Any idea what could be happening?

Its a conntrack issue with your NAT. Either increase/disable the conntrack timer/settings if you can, or you'll need to set up a keepalive like NTP queries over IPv6.

The public address must be pingable (ICMP echo request and reply) even if limited to just HE's tunnel server as the source.

Yeah my public IP is pingable. I had no issues creating the tunnel and I have no issues talking over it from my VM, but unless my VM is communicatin over the link (that is I let no traffic go over it for 15 minutes or so) I can no longer access from the other side of the tunnel until I start communicating from my end again.

So when I start a ping from my end my NAT/Firewall is creating the appropriate states and allowing traffic through. After those time out then access from outside is dropped because I can't get pfsense configured right.

Hello,

I completed sage and sent the email asking for irc access but I have not received a reply. My friend who sent his email little after me got a reply and his unblocked.
 
I've seen users on here notice requests and get them unblocked so I am hoping to be seen here since the email got missed.

Thanks.

I just replied to the mail, like last time.

Did you get a ticket acknowledgement?

Hi all,
 
Do you know how long the guys and girls at HE need to replay to a ticket? I opened a ticket for a BGP tunnel but didn’t get any response so far. I contacted them once and they replied in under 30 min. Now I don't know if I’m just impatient or if there system blocked my mail

Regards

Tscho

The public address must be pingable (ICMP echo request and reply) even if limited to just HE's tunnel server as the source.

Your public address.

Thanks for the reply!

I went to re-enable the "IPv6 over IPv4 Tunneling" and set the tunnel peer to my public IP, however the setting doesn't take. Anytime I enable that box and hit save, leave and come back to that page it's unchecked again.

Maybe I have found a bug.

Your public address.