IPV6 Tunnel Not Working

Trying to follow instructions here for IPV6 Tunnel: Tunnelbroker.net (IPv6) — VyOS 1.3.x (equuleus) documentation

Here’s my tunnel config:

# show interfaces tunnel tun0
 address 2001:470:xx:xx::2/64
 description "HE.NET v6 Tun"
 encapsulation sit
 multicast disable
 source-address xxx.xx.91.150
# show protocols static route6
 route6 ::/0 {
     interface tun0 {

I got past the message about unable to connect to network. But PING still fails with this:

# ping google.com
PING google.com(slc08s02-in-x0e.1e100.net (2607:f8b0:4025:801::200e)) 56 data bytes
--- google.com ping statistics ---
14 packets transmitted, 0 received, 100% packet loss, time 13307ms

I tail’d the /var/log/messages file, nothing there indicating anything is getting blocked.

Any ideas?

Can you ping 2001:470:xx:xx:1?
Can their site ping your site?
Did you configure IPv6 name servers?
Disable firewall if you use it to be sure it is not case