My Internet provider is Vodafone, and I use a Vodafone Station as the modem running the official firmware. Behind that modem is
- my Archer A7 router running OpenWrt as well as
- an older TP-Link router running the official firmware.
When directly connecting to the Vodafone Station (Wifi, LAN, Powerline), all devices seem to be able to use IPv6, according to https://test-ipv6.com. However, when connected to the OpenWrt router, https://test-ipv6.com says IPv6 does not work.
I tested IPv6 on the following devices (and always got the same result):
- Zorin 16.3 laptop
- Windows 11 laptop
- Windows 10 laptop
- Fairphone 3 running Android 12
- Samsung Tab S5e running Android 13
In fact, both Windows 10 and 11 complained about “no network access” via IPv6 (see the screenshots below).
Though, for some reason, all devices seem to have received IPv6 addresses anyway.
It is somewhat suspicious that IPv6 does not work via the older TP-Link router either, but that might just be due to its age, I can't tell. If the OpenWrt config was not at fault, could the issue be that the Vodafone Station possibly does not “delegate” IPv6?
Vodafone Station
- firmware version:
3.2.47-IMS-KDG - product number:
CGA4233DE
It does not have any IPv6-related settings whatsoever. (The admin interface is so basic that you can't even change the DNS server...)
Archer A7
- model:
TP-Link Archer A7 v5 - architecture:
Qualcomm Atheros QCA956X ver 1 rev 0 - target platform:
ath79/generic - firmware:
OpenWrt 23.05.0-rc3 r23389-5deed175a5 / LuCI openwrt-23.05 branch git-23.236.53405-fc638c8 - kernel:
5.15.127
Note that IPv6 did not work on any previous firmware version either. (Until now, I did not car about that at all.)
OpenWrt configuration
I set up OpenWrt solely via the LuCi web interface and did not dare to touch the command line.
I installed AdGuard Home on my Rasperry Pi and set up OpenWrt to redirect all DNS requests on port 53 to AGH (more info). I also tried to make OpenWrt “advertise” the Raspberry Pi as the DNS server.
What might be the issue? How to fix it?
Thank you!
Zorin 16.3 connected via Wifi
Windows 11 connected via LAN
Windows 10 connected via Wifi
Android 12 connected via Wifi
/etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fdc***/48'
config device
option name 'br-lan'
option type 'bridge'
list ports 'eth0.1'
config interface 'lan'
option device 'br-lan'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
list dns '192.168.0.***' # Raspberry Pi
list dns '2a02:***:91e1' # Raspberry Pi
option ip6assign '64'
config device
option name 'eth0.2'
option macaddr '90:***:24'
config interface 'wan'
option device 'eth0.2'
option proto 'dhcp'
option peerdns '0'
list dns '192.168.0.***' # Raspberry Pi
config interface 'wan6'
option device 'eth0.2'
option proto 'dhcpv6'
option peerdns '0'
list dns '2a02:***:91e1' # Raspberry Pi
option reqaddress 'try'
option reqprefix 'auto'
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'
config switch_vlan
option device 'switch0'
option vlan '1'
option ports '2 3 4 5 0t'
config switch_vlan
option device 'switch0'
option vlan '2'
option ports '1 0t'
/etc/config/dhcp
config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option ednspacket_max '1232'
option noresolv '0'
option cachesize '1000'
option rebind_protection '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
list ra_flags 'managed-config'
list ra_flags 'other-config'
option leasetime '24h'
list dns '2a02:***:91e1' # Raspberry Pi
config dhcp 'wan'
option interface 'wan'
option ignore '1'
option start '100'
option limit '150'
option leasetime '12h'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
config host
option name 'raspberrypi'
option ip '192.168.1.***'
option mac 'B8:***:84'
config host
option name 'raspberrypi'
option duid '0001***84'
option mac 'B8:***:84'
config dhcp 'wan6'
option interface 'wan6'
option ignore '1'
option ra 'relay'
option dhcpv6 'relay'
LAN interface
WAN interface
WAN6 interface
Global network options
DHCP and DNS
Firewall
