netdev - ip route get oddly fails for ipv6

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Date:   Thu, 23 Feb 2017 16:43:37 +0200
From:   Leon Goldberg <lgoldber@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Edward Haas <ehaas@...hat.com>, Dan Kenigsberg <danken@...hat.com>
Subject: ip route get oddly fails for ipv6

Hey,

For some reason ip route get fails to retrieve ipv6 routes, although
the subject destination is indeed reachable:

[root@...alhost tests]# ip -6 route
2001:1::/64 dev eth1  proto kernel  metric 256
fe80::/64 dev eth0  proto kernel  metric 256
fe80::/64 dev eth1  proto kernel  metric 256

[root@...alhost tests]# ping6 2001:1::1
PING 2001:1::1(2001:1::1) 56 data bytes
64 bytes from 2001:1::1: icmp_seq=1 ttl=64 time=0.035 ms
64 bytes from 2001:1::1: icmp_seq=2 ttl=64 time=0.055 ms
64 bytes from 2001:1::1: icmp_seq=3 ttl=64 time=0.055 ms
^C
--- 2001:1::1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 0.035/0.048/0.055/0.011 ms

[root@...alhost tests]# ip route get 2001:1::1
[root@...alhost tests]#
[root@...alhost tests]# ip -6 route get 2001:1::1
[root@...alhost tests]#

ipv4 ip route get works fine. Any hints?

Thanks,
Leon