OTBR: Default DNS not able to resolve IPv4 addresses since 2.12.0

[mmarc]

Describe the issue you are experiencing

With NAT64 enabled connected Thread devices should be able to resolve IPv4 addresses.
Since 2.12.0 this is no longer working and DNS requests just time out.
When providing a custom external DNS server it works but this way internal IP addresses cannot be resolved.

2.12.2:

matterCli> otcli dns resolve4 google.com
Done
DNS response for google.com. - 
Error 28: ResponseTimeout
matterCli> otcli dns config
Server: [fd58:a2bd:9b49:3111:a35e:6918:3694:fc8f]:53
ResponseTimeout: 6000 ms
MaxTxAttempts: 3
RecursionDesired: yes
ServiceMode: srv_txt_opt
Nat64Mode: allow
Done

2.11.1:

matterCli> otcli dns resolve4 google.com
Done
DNS response for google.com. - fdcb:53cf:537:2:0:0:8efa:b98e TTL:254 
Done
matterCli> otcli dns config
Server: [fd58:a2bd:9b49:3111:a35e:6918:3694:fc8f]:53
ResponseTimeout: 6000 ms
MaxTxAttempts: 3
RecursionDesired: yes
ServiceMode: srv_txt_opt
Nat64Mode: allow
Done

Since 2.12.0 I also see the following errors within addon logs:

00:00:35.353 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:35.354 [W] P-RadioSpinel-: Error waiting response: NoAddress
00:00:35.506 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:35.506 [W] P-RadioSpinel-: Error waiting response: NoAddress
00:00:36.100 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:36.100 [W] P-RadioSpinel-: Error waiting response: NoAddress
00:00:36.164 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:36.164 [W] P-RadioSpinel-: Error waiting response: NoAddress
00:00:36.382 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:36.382 [W] P-RadioSpinel-: Error waiting response: NoAddress
00:00:36.838 [W] P-RadioSpinel-: Error processing result: NoAddress
00:00:36.838 [W] P-RadioSpinel-: Error waiting response: NoAddress

What type of installation are you running?

Home Assistant OS

Which operating system are you running on?

Home Assistant Operating System

Which add-on are you reporting an issue with?

OpenThread Border Router

What is the version of the add-on?

2.12.0

Steps to reproduce the issue

1. Update from OTBR addon 2.11.1 to any newer version
2. Try to resolve IP of any IPv4 host via DNS

System Health information

System Information

version	core-2025.2.4
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.13.1
os_name	Linux
os_version	6.6.62-haos-raspi
arch	aarch64
timezone	Europe/Vienna
config_dir	/config

Home Assistant Cloud

logged_in	false
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Home Assistant Supervisor

host_os	Home Assistant OS 14.2
update_channel	stable
supervisor_version	supervisor-2025.02.1
agent_version	1.6.0
docker_version	27.2.0
disk_total	916.9 GB
disk_used	42.0 GB
healthy	true
supported	true
host_connectivity	true
supervisor_connectivity	true
ntp_synchronized	true
virtualization
board	yellow
supervisor_api	ok
version_api	ok
installed_addons	RaspberryMatic CCU (3.79.6.20250220), MariaDB (2.7.2), Nginx Proxy Manager (1.0.1), Mosquitto broker (6.5.0), InfluxDB (5.0.2), Advanced SSH & Web Terminal (20.0.1), Grafana (10.4.2), Vaultwarden (Bitwarden) (0.24.1), OpenThread Border Router (2.13.0), Matter Server (7.0.0)

Dashboards

dashboards	3
resources	0
views	16
mode	storage

Network Configuration

adapters	lo (disabled), end0 (enabled, default, auto), docker0 (disabled), hassio (disabled), vethc225cc7 (disabled), vethb29a466 (disabled), veth2e82b15 (disabled), veth1119534 (disabled), veth9f3ebb0 (disabled), vethb6708f1 (disabled), veth4baac2f (disabled), veth644e975 (disabled), veth262459e (disabled), vethaca1287 (disabled), vethd2bc4e2 (disabled), wpan0 (disabled)
ipv4_addresses	lo (127.0.0.1/8), end0 (192.168.86.2/24), docker0 (172.30.232.1/23), hassio (172.30.32.1/23), vethc225cc7 (), vethb29a466 (), veth2e82b15 (), veth1119534 (), veth9f3ebb0 (), vethb6708f1 (), veth4baac2f (), veth644e975 (), veth262459e (), vethaca1287 (), vethd2bc4e2 (), wpan0 ()
ipv6_addresses	lo (::1/128), end0 (fd65:3923:f245:84cd:4849:f181:d794:c17f/64, fe80::fe86:e34e:8ceb:dfa1/64), docker0 (fe80::42:bcff:fe5f:9a20/64), hassio (fe80::42:3bff:fec6:2d80/64), vethc225cc7 (fe80::f4ee:e7ff:fedd:f4d0/64), vethb29a466 (fe80::944e:31ff:fedd:c569/64), veth2e82b15 (fe80::7c40:c0ff:fe25:ed56/64), veth1119534 (fe80::91:71ff:fe38:bd74/64), veth9f3ebb0 (fe80::30fd:78ff:feb4:c050/64), vethb6708f1 (fe80::a1:5dff:fe0e:e71e/64), veth4baac2f (fe80::9842:2aff:fea7:2259/64), veth644e975 (fe80::940d:e5ff:fe64:d24a/64), veth262459e (fe80::24e9:75ff:fe99:4b64/64), vethaca1287 (fe80::24d1:28ff:feff:ba92/64), vethd2bc4e2 (fe80::e4c6:dbff:fe3f:df1e/64), wpan0 (fd58:a2bd:9b49:3111:0:ff:fe00:fc11/64, fdcb:53cf:537:1:a081:2dcb:8d11:e236/64, fd58:a2bd:9b49:3111:0:ff:fe00:fc10/64, fd58:a2bd:9b49:3111:0:ff:fe00:fc38/64, fd58:a2bd:9b49:3111:0:ff:fe00:fc00/64, fd58:a2bd:9b49:3111:0:ff:fe00:dc00/64, fd58:a2bd:9b49:3111:a35e:6918:3694:fc8f/64, fe80::bc46:150f:b517:61d1/64)
announce_addresses	192.168.86.2, fd65:3923:f245:84cd:4849:f181:d794:c17f, fe80::fe86:e34e:8ceb:dfa1

Recorder

oldest_recorder_run	8. Februar 2025 um 15:29
current_recorder_run	17. Februar 2025 um 07:42
estimated_db_size	1796.80 MiB
database_engine	mysql
database_version	10.11.6

Anything in the Supervisor logs that might be useful for us?

Anything in the add-on logs that might be useful for us?

Additional information

No response