I can't even use my designated IPv4 DNS servers when I have wan6:
Adding this back won't work:
…
config interface 'wan6'
option ifname 'eth1.2'
option proto 'dhcpv6'
option delegate '0'
option peerdns '0'
…
Nor will this:
…
config interface 'wan6'
option ifname 'eth1.2'
option proto 'dhcpv6'
option delegate '0'
option peerdns '0'
list dns '185.121.177.177'
list dns '169.239.202.202'
…
root@…:~# ifconfig
…
eth1.2 Link encap:Ethernet HWaddr …
inet addr:<ISP_ASSIGNED_IPv4> Bcast:<ISP_ASSIGNED_BCAST_IPv4> Mask:255.255.254.0
inet6 addr: <ISP_ASSIGNED_IPv6>/128 Scope:Global
inet6 addr: fe80::6238:…/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:271 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4882 (4.7 KiB) TX bytes:23058 (22.5 KiB)
…
Only if I do this, can I resolve names:
…
config interface 'wan6'
option ifname 'eth1.2'
option proto 'dhcpv6'
option delegate '0'
option peerdns '0'
# These have to be IPv6 addresses for some reason, otherwise I can't resolve names
list dns '2a05:dfc7:5::53'
list dns '2a05:dfc7:5::5353'
…
Now it works (but uses IPv6):
root@…:~# nslookup openwrt.org
Server: 127.0.0.1
Address: 127.0.0.1#53
Name: openwrt.org
Address 1: 139.59.209.225
Address 2: 2a03:b0c0:3:d0::1af1:1
dnsmasq logs:
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 155 127.0.0.1/49708 query[A] openwrt.org from 127.0.0.1
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 155 127.0.0.1/49708 forwarded openwrt.org to 2a05:dfc7:5::5353
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 156 127.0.0.1/49708 query[AAAA] openwrt.org from 127.0.0.1
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 156 127.0.0.1/49708 forwarded openwrt.org to 2a05:dfc7:5::5353
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 155 127.0.0.1/49708 reply openwrt.org is 139.59.209.225
Fri Sep 10 17:12:14 2021 daemon.info dnsmasq[5874]: 156 127.0.0.1/49708 reply openwrt.org is 2a03:b0c0:3:d0::1af1:1
What gives?