Ipv6 unreachable route, after setting ipv4 static route

Installing and Using OpenWrt
1

Due to mtk_soc_eth issues that would cause crash with my D-Link DIR-860L B1, I switched to using RPi 4B as router, and an old TP-Link Archer C7 v2 as WiFi AP, based on the OpenWRT – How to create a public network without using the wan interface

Now the WiFi is working after applying the static route by adding the following lines to /etc/config/network:

config route 'AccessPoint1'
        option interface 'lan'
        option target '172.10.3.0'
        option netmask '255.255.255.0'
        option gateway '192.168.1.2'

config route 'AccessPoint2'
        option interface 'lan'
        option target '172.10.4.0'
        option netmask '255.255.255.0'
        option gateway '192.168.1.2'

with '192.168.1.2' as the ip of the Archer C7 v2 in the router's lan.

While command 'ip route show' gives:

root@OpenWrt:~# ip route show
default via xxx.xxx.xx.1 dev eth1  src xxx.xxx.xx.xxx
xxx.xxx.xx.0/20 dev eth1 scope link  src xxx.xxx.xx.xxx
172.10.3.0/24 via 192.168.1.2 dev br-lan
172.10.4.0/24 via 192.168.1.2 dev br-lan
192.168.1.0/24 dev br-lan scope link  src 192.168.1.1

However, the 'ip -6 route' command get an unreachable item as follow:

fdbb:54ac:343f::/64 dev br-lan  metric 1024
unreachable fdbb:54ac:343f::/48 dev lo  metric 2147483647
fe80::/64 dev eth1  metric 256
fe80::/64 dev br-lan  metric 256
anycast fdbb:54ac:343f:: dev br-lan  metric 0
anycast fe80:: dev eth1  metric 0
anycast fe80:: dev br-lan  metric 0
ff00::/8 dev br-lan  metric 256
ff00::/8 dev eth1  metric 256

in which there's an unreachable item.

Is there anything wrong with my setup?

2
  • Are you saying the IPv6 route appeared when you added the IPv4 route?
  • Have you actually lost IPv6 connectivity/reachability to other devices by the ULA addresses?
3

This was already there and is not a problem.

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