OPNsense Forum

English Forums => 25.7 Series => Topic started by: skyfighter on July 25, 2025, 09:43:37 AM

Title: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 09:43:37 AM
Hi guys, after upgrading to 25.7 I switched to Dnsmasq as DHSP server for IPv4 and 6.
I am using Adguard Home, Unbound and Dnsmasq based on the Configuration Example (https://wiki.opnsense.org/manual/dnsmasq.html#configuration-examples).
But unfortunately no hostnames are shown for IPv6 addresses in Adguard or in Traffic/Reporting/Top Talkers.
Do you have an idea what could be wrong? I have attached screenshots of my current configuration.

Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 09:45:43 AM
More screenshots of config
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 09:46:17 AM
More screenshots
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 09:46:37 AM
rest of screenshots
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: frank_p on July 25, 2025, 09:51:39 AM
I have the same effect since update to 25.7. Using dnsmasq for DHCP and unbound DNS for DNS on port accessable for AdGuardHome. Since update to 25.7 only hostnames for fixed adresses are visible in AdGuardHome. All others are IP-Adresses only.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 10:18:21 AM
Quote from: frank_p on July 25, 2025, 09:51:39 AMI have the same effect since update to 25.7. Using dnsmasq for DHCP and unbound DNS for DNS on port accessable for AdGuardHome. Since update to 25.7 only hostnames for fixed adresses are visible in AdGuardHome. All others are IP-Adresses only.
But only for IPv6 addresses right? Hostnames for IPv4 addresses are shown for me.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: frank_p on July 25, 2025, 10:47:42 AM
My statement apply solely to IPv4 addressing. IPv6 support is currently disabled in my environment.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Patrick M. Hausen on July 25, 2025, 12:08:34 PM
Quote from: frank_p on July 25, 2025, 10:47:42 AMMy statement apply solely to IPv4 addressing. IPv6 support is currently disabled in my environment.

Then please do not "hijack" a thread that specifically discusses IPv6 only.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 01:37:19 PM
Hello, you have configured Opnsense with the internal domain and the LAN network in lan.internal and it is the same DHCP range. In my opinion, you should leave the domain configuration in DNSMASQ blank for IPv4 and configure the domain in IPv6 in internal.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 01:55:49 PM
Quote from: Javier® on July 25, 2025, 01:37:19 PMHello, you have configured Opnsense with the internal domain and the LAN network in lan.internal and it is the same DHCP range. In my opinion, you should leave the domain configuration in DNSMASQ blank for IPv4 and configure the domain in IPv6 in internal.
Where do I have to change this?
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:00:26 PM
dnsmasq DHCP Ranges
Leave the DHCP IPv4 range blank in the domain. In IPv6, add the domain to the internal domain.
IPv6 Advanced Mode, Domain Type: Interface
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 02:06:55 PM
So "lan.internal" should be removed from Domain field of top entry of my screenshot and be added to the field below?
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:14:19 PM
Yes, if it is blank the domain will be Internal, which you have configured by default.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 02:16:27 PM
Ok, this is how it looks like now. I will see if hostnames are now shown in Adguard, etc.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:17:59 PM
and change it here also to Internal
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:24:40 PM
I still see lan.internal
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:25:04 PM
I still see lan.internal
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 02:29:31 PM
Ok, this is how it looks like now. I will give it a try.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 02:30:36 PM
Quote from: Javier® on July 25, 2025, 02:25:04 PMI still see lan.internal
Changed this one to "internal" instead.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 02:48:43 PM
If it doesn't work for you, use this for the IPv6 PTR

https://www.whatsmydns.net/reverse-dns-generator?q=

my configuration

Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 03:04:29 PM
Quote from: Javier® on July 25, 2025, 02:48:43 PMIf it doesn't work for you, use this for the IPv6 PTR

https://www.whatsmydns.net/reverse-dns-generator?q=

my configuration


To get the IPv6 PTR I have to use the IPv6 address of my LAN interface in the converter right?
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 03:13:38 PM
I have it with CIDR /32

it's complicated
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 03:16:51 PM
It's not working for you yet?
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: skyfighter on July 25, 2025, 03:21:56 PM
There are still some ipv6 addresses shown in Adguard Home and Traffic/Top Talkers. But I will wait a little bit to see if that will change.
Title: Re: No hostnames for IPv6 addresses in Adguard Home
Post by: Javier® on July 25, 2025, 03:31:50 PM
I'm sorry, I've done what I could, I don't have much knowledge