Jarek Poplawski wrote:
ip -6 route:
2001:4ca0:0:f000::/64 dev eth0 proto kernel metric 256 expires 86322sec mtu
1500 advmss 1440 fragtimeout 4294967295
fe80::/64 dev eth0 metric 256 expires 21225804sec mtu 1500 advmss 1440
fragtimeout 4294967295
ff00::/8 dev eth0 metric 256 expires 21225804sec mtu 1500 advmss 1440
fragtimeout 4294967295
default via fe80::2d0:4ff:fe12:2400 dev eth0 proto kernel metric 1024
expires 1717sec mtu 1500 advmss 1440 fragtimeout 64
unreachable default dev lo proto none metric -1 error -101 fragtimeout 255
Did you analyze this dev lo warning?
That one is default. Recent kernels (since 2.6.12 or so, I think when
the default on-link assumption was killed) have a default route pointing
to "unreachable default lo" on bootup. Routes learned from RA or added
statically are installed with a better metric and are preferred that way.
I think the use is to have a Network unreachable returned immediately if
no IPv6 router is present.
Regards,
Bernhard
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