IPv6 works on the router but doesn’t work on LAN devices


BusyBox v1.31.1 () built-in shell (ash)

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          |__| W I R E L E S S   F R E E D O M
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 OpenWrt SFE, r15568-b3eccbca7c
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root@ArcherD50:~# ifstatus wwan6
{
        "up": true,
        "pending": false,
        "available": true,
        "autostart": true,
        "dynamic": false,
        "uptime": 8726,
        "l3_device": "wlan0",
        "proto": "dhcpv6",
        "device": "wlan0",
        "metric": 0,
        "dns_metric": 0,
        "delegation": true,
        "ipv4-address": [

        ],
        "ipv6-address": [
                {
                        "address": "2a04:ec82:5:d101:d66e:ef
f:fea1:c4dd",
                        "mask": 128,
                        "preferred": 2075,
                        "valid": 5675
                }
        ],
        "ipv6-prefix": [
                {
                        "address": "2a04:ec82:5:d1f8::",
                        "mask": 62,
                        "preferred": 2075,
                        "valid": 5675,
                        "class": "wwan6",
                        "assigned": {

                        }
                }
        ],
        "ipv6-prefix-assignment": [

        ],
        "route": [
                {
                        "target": "2a04:ec82:5:d101::",
                        "mask": 64,
                        "nexthop": "::",
                        "metric": 256,
                        "valid": 2068,
                        "source": "::/0"
                },
                {
                        "target": "2a04:ec82:5:d100::",
                        "mask": 56,
                        "nexthop": "fe80::3a10:d5ff:fe85:d8c
c",
                        "metric": 512,
                        "valid": 1399,
                        "source": "2a04:ec82:5:d1f8::/62"
                },
                {
                        "target": "2a04:ec82:5:d100::",
                        "mask": 56,
                        "nexthop": "fe80::3a10:d5ff:fe85:d8c
c",
                        "metric": 512,
                        "valid": 1399,
                        "source": "2a04:ec82:5:d101:d66e:eff
:fea1:c4dd/128"
                },
                {
                        "target": "::",
                        "mask": 0,
                        "nexthop": "fe80::3a10:d5ff:fe85:d8c
c",
                        "metric": 512,
                        "valid": 1399,
                        "source": "2a04:ec82:5:d1f8::/62"
                },
                {
                        "target": "::",
                        "mask": 0,
                        "nexthop": "fe80::3a10:d5ff:fe85:d8c
c",
                        "metric": 512,
                        "valid": 1399,
                        "source": "2a04:ec82:5:d101:d66e:eff
:fea1:c4dd/128"
                }
        ],
        "dns-server": [
                "fd00::3a10:d5ff:fe85:d8cc",
                "2a04:ec82:5:d101:3a10:d5ff:fe85:d8cc"
        ],
        "dns-search": [

        ],
        "neighbors": [

        ],
        "inactive": {
                "ipv4-address": [

                ],
                "ipv6-address": [

                ],
                "route": [

                ],
                "dns-server": [

                ],
                "dns-search": [

                ],
                "neighbors": [

                ]
        },
        "data": {
                "passthru": "0038001400010010fd0000000000000
03a10d5fffe85d8cc00170020fd000000000000003a10d5fffe85d8cc2a0
4ec820005d1013a10d5fffe85d8cc005600102a04ec820005d1013a10d5f
ffe85d8cc"
        }
}
root@ArcherD50:~# ping6 google
ping6: bad address 'google'
root@ArcherD50:~# ping6 google.de
PING google.de (2a00:1450:4001:829::2003): 56 data bytes
64 bytes from 2a00:1450:4001:829::2003: seq=0 ttl=117 time=1
4.309 ms
64 bytes from 2a00:1450:4001:829::2003: seq=1 ttl=117 time=1
2.713 ms
64 bytes from 2a00:1450:4001:829::2003: seq=2 ttl=117 time=1
3.484 ms
64 bytes from 2a00:1450:4001:829::2003: seq=3 ttl=117 time=1
1.711 ms
64 bytes from 2a00:1450:4001:829::2003: seq=4 ttl=117 time=1
2.164 ms
64 bytes from 2a00:1450:4001:829::2003: seq=5 ttl=117 time=1
2.476 ms
64 bytes from 2a00:1450:4001:829::2003: seq=6 ttl=117 time=1
2.857 ms
64 bytes from 2a00:1450:4001:829::2003: seq=7 ttl=117 time=1
2.197 ms
64 bytes from 2a00:1450:4001:829::2003: seq=8 ttl=117 time=1
1.258 ms
64 bytes from 2a00:1450:4001:829::2003: seq=9 ttl=117 time=1
0.901 ms
^@64 bytes from 2a00:1450:4001:829::2003: seq=10 ttl=117 tim
e=10.932 ms
c64 bytes from 2a00:1450:4001:829::2003: seq=11 ttl=117 time
=10.777 ms
64 bytes from 2a00:1450:4001:829::2003: seq=12 ttl=117 time=
11.213 ms
^C
--- google.de ping statistics ---
13 packets transmitted, 13 packets received, 0% packet loss
round-trip min/avg/max = 10.777/12.076/14.309 ms
root@ArcherD50:~#
Die Verbindung wurde getrennt.


Hey guys,

I just wanna extend my Fritzbox Network which has an Dual Stack Light Internet Connection.

When I connect directly to my Fritzbox it's both working fine with my smartphone.

When I connect to my openwrt router I get the same IPv6 on my device. I can ping directly to the internet from the openwrt router which is configured as a relay as described here

Ipv6 with relayd wireless extender

Update:

I found that the problem has something to do with a wrong gateway. How can I change it to the dns address which is my Fritzbox ipv6 and also the ipv6 gateway.

There is a wrong fe80 in the beginning instead of fd00

Protocol: DHCPv6 client
Prefix Delegated: 2a04:ec82:5:d1fc::/62
Address: 2a04:ec82:5:d101:c0e:76ff:fe6d:d024/128
Gateway: fe80::3a10:d5ff:fe85:d8cc
DNS 1: fd00::3a10:d5ff:fe85:d8cc
DNS 2: 2a04:ec82:5:d101:3a10:d5ff:fe85:d8cc