IPv6: Destino inacessível: endereço inacessível [fechado]

Question

Meu servidor não pode pingar / alcançar qualquer outro fora.
ping6 funciona para o meu endereço fe80 :: 468 ... local, assim como o 2a01: 4f8 ... , mas não para fe80 :: 1 !

Erros / problemas / problemas:

ip neigh show

fe80::1 dev eth0  FAILED

ping6 2001: 4860: 4860: 8888 ( Google )

PING 2001:4860:4860:8888(2001:4860:4860:8888) 56 data bytes
From 2a01:4f8:202:43d5::2 icmp_seq=1 Destination unreachable: Address unreachable

ping6 -I eth0 fe80 :: 1

PING fe80::1(fe80::1) from fe80::468a:5bff:fe2c:3d6a eth0: 56 data bytes
From fe80::468a:5bff:fe2c:3d6a icmp_seq=1 Destination unreachable: Address unreachable

ping6 -I 2a01: 4f8: 202: 43d5 :: 2 fe80 :: 1

PING fe80::1(fe80::1) from 2a01:4f8:202:43d5::2 : 56 data bytes
From 2a01:4f8:202:43d5::2 icmp_seq=1 Destination unreachable: Address unreachable

Configuração

ip -6 a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536
    inet6 ::1/128 scope host
      valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 2a01:4f8:202:43d5::2/64 scope global
      valid_lft forever preferred_lft forever
    inet6 fe80::468a:5bff:fe2c:3d6a/64 scope link
      valid_lft forever preferred_lft forever

ip -6 route

2a01:4f8:202:43d5::/64 dev eth0  proto kernel  metric 256  pref medium
fe80::/64 dev eth0  proto kernel  metric 256  pref medium
default via fe80::1 dev eth0  metric 2  pref medium

Alguma idéia de como resolver isso?