Re: ICMPv6 too big Packet will makes the network unreachable

On Tue, Oct 13, 2015, at 09:09, Li RongQing wrote:

4.  route information  will enter the faulty state after Wait 600
seconds,

   root@du1:~# ip route get 2001:1b70:82a8:18:650:65:0:2
   local 2001:1b70:82a8:18:650:65:0:2 dev lo  proto none  src
2001:1b70:82a8:18:650:65:0:2  metric 0  expires 7sec mtu 1280

   root@du1:~# ip route get 2001:1b70:82a8:18:650:65:0:2
   local 2001:1b70:82a8:18:650:65:0:2 dev lo  proto none  src
2001:1b70:82a8:18:650:65:0:2  metric 0  expires 3sec mtu 1280

   root@du1:~# ip route get 2001:1b70:82a8:18:650:65:0:2
   2001:1b70:82a8:18:650:65:0:2 dev eth10.650  src
2001:1b70:82a8:18:650:65:0:2  metric 0
       cache
   root@du1:~#

Which kernel version did you test this on?

Thanks,
Hannes