Re: [IPv6] PROBLEM? Network unreachable despite correct route

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux