Ping Endpoint Works. others fail.

[joycegt2020]

I have a tunnel created longs ago.
After server reboots, I can Ping6 the other endpoint.

joyce@joyce-homerouter:~$ ping6 -c 10 2001:470:1f04:xxxx::1
PING 2001:470:1f04:xxxx::1(2001:470:1f04:xxxx::1) 56 data bytes
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=1 ttl=64 time=151 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=2 ttl=64 time=144 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=3 ttl=64 time=148 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=4 ttl=64 time=152 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=5 ttl=64 time=151 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=6 ttl=64 time=154 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=7 ttl=64 time=144 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=8 ttl=64 time=156 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=9 ttl=64 time=144 ms
64 bytes from 2001:470:1f04:xxxx::1: icmp_seq=10 ttl=64 time=145 ms

--- 2001:470:1f04:xxxx::1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9012ms
rtt min/avg/max/mdev = 144.253/149.477/156.467/4.305 ms

but others not.

joyce@joyce-homerouter:~$ ping6 -c 10 www.google.com
PING www.google.com(tg-in-x63.1e100.net) 56 data bytes

--- www.google.com ping statistics ---
10 packets transmitted, 0 received, 100% packet loss, time 9070ms

ip6tables :

Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

[broquea]

Sounds like a busted default route.