Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


andrewdixon1000

76 posts

Master Geek


#319608 13-May-2025 10:42
Send private message quote this post

Hi,

 

I am a Skinny customer with a VRV9517 (I think that's a Smart Modem 1).  I've set up Adguard Home and I want to change the DNS server settings for DHCP in the router to point to it, but I'm not having luck.

 

The router is running firmware v6.00.18 build02.

 

On the LAN settings page in the router admin I've added my Adguard Home server's IP address (10.76.0.10) into the "Primary DNS" field and I have the "ISP DNS" checkbox unchecked.  I've tried this with the "Customer DNS" checkbox checked and with it unchecked (it's not clear to me what this checkbox does).  In all cases I continue to see the router's IP address (10.76.0.254) as the DNS server on my DHCP connected devices.

 

In the router log file I see the following after a reboot:

 

Jan  1 12:00:21 VRV9517 syslog.info syslogd started: BusyBox
Jan  1 12:00:22 VRV9517 user.info autowandetect: AWD_Main pid:2318
Jan  1 12:00:22 VRV9517 daemon.err dhcpd: /etc/dhcpd-br0.conf line 17: . (46): expecting IP address or hostname
Jan  1 12:00:22 VRV9517 daemon.err dhcpd:   option domain-name-servers 10.76.0.10, .
Jan  1 12:00:22 VRV9517 daemon.err dhcpd:                                           ^
Jan  1 12:00:22 VRV9517 daemon.err dhcpd: Configuration file errors encountered -- exiting

 

 

 

Is there anybody familiar with this hardware who can shed some light on what I might be doing wrong?

 

Thanks

 

Andrew

 

 


Create new topic
Tinkerisk
4235 posts

Uber Geek


  #3372772 13-May-2025 13:31
Send private message quote this post

Without knowing your network in detail: It is nothing unusual if the router remains the general DNS server for the clients in the LAN, and it forwards its queries to its ‘buddy’ and also receives them back from it. Custom DNS on, ISP DNS off, reboot router.





- NET: FTTH, OPNsense, 10G backbone, GWN APs, ipPBX
- SRV: 12 RU HA server cluster, 0.1 PB storage on premise
- IoT:   thread, zigbee, tasmota, BidCoS, LoRa, WX suite, IR
- 3D:    two 3D printers, 3D scanner, CNC router, laser cutter




toejam316
1466 posts

Uber Geek

Trusted
Lifetime subscriber

  #3372775 13-May-2025 13:54
Send private message quote this post

It sounds like you may have set your WAN DNS server to your Adguard host, while your LAN DHCP server is still serving your router as the DNS server. You will want to swap this around so that the WAN DNS is still ISP assigned, and the LAN DHCP is issuing your Adguard host.





Anything I say is the ramblings of an ill informed, opinionated so-and-so, and not representative of any of my past, present or future employers, and is also probably best disregarded.


andrewdixon1000

76 posts

Master Geek


  #3372957 14-May-2025 07:52
Send private message quote this post

toejam316:

 

It sounds like you may have set your WAN DNS server to your Adguard host, while your LAN DHCP server is still serving your router as the DNS server. You will want to swap this around so that the WAN DNS is still ISP assigned, and the LAN DHCP is issuing your Adguard host.

 

 

 

 

There is a separate DNS setting in the WAN settings but this is blank.  The setting I've been trying is for the LAN.




andrewdixon1000

76 posts

Master Geek


  #3372958 14-May-2025 07:54
Send private message quote this post

Tinkerisk:

 

Without knowing your network in detail: It is nothing unusual if the router remains the general DNS server for the clients in the LAN, and it forwards its queries to its ‘buddy’ and also receives them back from it. Custom DNS on, ISP DNS off, reboot router.

 

 

That's what I thought at first too, but Adguard Home is not receiving any DNS requests, except when I specifically address them to it via a dig command.


Tinkerisk
4235 posts

Uber Geek


  #3373395 15-May-2025 04:07
Send private message quote this post

I would assign the AdGuard instance IP to the system (WAN) DNS, force the DHCP to issue the router IP as the LAN’s DNS for the clients and within AdGuard the relevant external DNS servers you want to use (i.e. 9.9.9.9 or whatever - I have unbound as a recursive own DNS dealing with the public root DNS servers directly).

 

This is what works here, but I don‘t know, wether your router is able to handle it or not.





- NET: FTTH, OPNsense, 10G backbone, GWN APs, ipPBX
- SRV: 12 RU HA server cluster, 0.1 PB storage on premise
- IoT:   thread, zigbee, tasmota, BidCoS, LoRa, WX suite, IR
- 3D:    two 3D printers, 3D scanner, CNC router, laser cutter


rhy7s
625 posts

Ultimate Geek


  #3373397 15-May-2025 06:09
Send private message quote this post

Can you disable DHCP on the LAN from the Smart Modem and set up the device running AdGuard as your DHCP server?


Create new topic





News and reviews »

Air New Zealand Starts AI adoption with OpenAI
Posted 24-Jul-2025 16:00


eero Pro 7 Review
Posted 23-Jul-2025 12:07


BeeStation Plus Review
Posted 21-Jul-2025 14:21


eero Unveils New Wi-Fi 7 Products in New Zealand
Posted 21-Jul-2025 00:01


WiZ Introduces HDMI Sync Box and other Light Devices
Posted 20-Jul-2025 17:32


RedShield Enhances DDoS and Bot Attack Protection
Posted 20-Jul-2025 17:26


Seagate Ships 30TB Drives
Posted 17-Jul-2025 11:24


Oclean AirPump A10 Water Flosser Review
Posted 13-Jul-2025 11:05


Samsung Galaxy Z Fold7: Raising the Bar for Smartphones
Posted 10-Jul-2025 02:01


Samsung Galaxy Z Flip7 Brings New Edge-To-Edge FlexWindow
Posted 10-Jul-2025 02:01


Epson Launches New AM-C550Z WorkForce Enterprise printer
Posted 9-Jul-2025 18:22


Samsung Releases Smart Monitor M9
Posted 9-Jul-2025 17:46


Nearly Half of Older Kiwis Still Write their Passwords on Paper
Posted 9-Jul-2025 08:42


D-Link 4G+ Cat6 Wi-Fi 6 DWR-933M Mobile Hotspot Review
Posted 1-Jul-2025 11:34


Oppo A5 Series Launches With New Levels of Durability
Posted 30-Jun-2025 10:15









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.