# ip -6 route get 2408:871a:2100:2:0:ff:b09f:237
RTNETLINK answers: Network unreachable
明明显示没有路由，但是实际上还能ping通。
其实我是有默认路由的，就不应该显示没有路由。
我的路由表长下面这样：
# ip -6 route s table 0
default from 2408:8206:2430:2455::/64 via fe80::8e90:d3ff:fe72:8311 dev pppoe-wan proto static metric 512 pref medium
default from 2408:8207:2432:88e0::/60 via fe80::8e90:d3ff:fe72:8311 dev pppoe-wan proto static metric 512 pref medium
unreachable 2408:8206:2430:2455::/64 dev lo proto static metric 2147483647 pref medium
2408:8207:2432:88e0::/64 dev br-lan proto static metric 1024 pref medium
unreachable 2408:8207:2432:88e0::/60 dev lo proto static metric 2147483647 pref medium
fd9e:1df:e0ad::/64 dev br-lan proto static metric 1024 pref medium
unreachable fd9e:1df:e0ad::/48 dev lo proto static metric 2147483647 pref medium
fe80::282f:ff8e:3a95:24a dev pppoe-wan proto kernel metric 256 pref medium
fe80::8e90:d3ff:fe72:8311 dev pppoe-wan proto kernel metric 256 pref medium
fe80::/64 dev eth1 proto kernel metric 256 pref medium
fe80::/64 dev tailscale0 proto kernel metric 256 pref medium
fe80::/64 dev br-lan proto kernel metric 256 pref medium
local ::1 dev lo table local proto kernel metric 0 pref medium
anycast 2408:8206:2430:2455:: dev pppoe-wan table local proto kernel metric 0 pref medium
local 2408:8206:2430:2455:282f:ff8e:3a95:24a dev pppoe-wan table local proto kernel metric 0 pref medium
anycast 2408:8207:2432:88e0:: dev br-lan table local proto kernel metric 0 pref medium
local 2408:8207:2432:88e0::1 dev br-lan table local proto kernel metric 0 pref medium
anycast fd9e:1df:e0ad:: dev br-lan table local proto kernel metric 0 pref medium
local fd9e:1df:e0ad::1 dev br-lan table local proto kernel metric 0 pref medium
anycast fe80:: dev tailscale0 table local proto kernel metric 0 pref medium
anycast fe80:: dev eth1 table local proto kernel metric 0 pref medium
anycast fe80:: dev br-lan table local proto kernel metric 0 pref medium
local fe80::15ef:db86:e56e:bfad dev tailscale0 table local proto kernel metric 0 pref medium
local fe80::282f:ff8e:3a95:24a dev pppoe-wan table local proto kernel metric 0 pref medium
local fe80::3086:45ff:fed8:6f83 dev eth1 table local proto kernel metric 0 pref medium
local fe80::3408:b0ff:fe17:3ed8 dev br-lan table local proto kernel metric 0 pref medium
multicast ff00::/8 dev br-lan table local proto kernel metric 256 pref medium
multicast ff00::/8 dev eth1 table local proto kernel metric 256 pref medium
multicast ff00::/8 dev link table local proto kernel metric 256 pref medium
multicast ff00::/8 dev tailscale0 table local proto kernel metric 256 pref medium
multicast ff00::/8 dev pppoe-wan table local proto kernel metric 256 pref medium
--
FROM 124.207.188.194