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DHCP and DNS servers (Vigor 2860)

  • bluefin2105
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01 Dec 2019 20:34 #95277 by bluefin2105
DHCP and DNS servers (Vigor 2860) was created by bluefin2105
Firmware 3.8.9.5_BT

I have noticed that my DHCP clients are acquiring the DNS server values provided by the ISP, rather than being set to use the router as a proxy. As far as I can tell from the guide, If the “DNS Server IP Address” fields in LAN -> General Setup -> Details Page are left blank (which they are) then the clients should all get the address of the router as their DNS server (which is what I would prefer). Any suggestions as to why this may not be working and how I might fix it please?

Thanks,

Pete

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03 Dec 2019 22:38 #95286 by anaglypta
Replied by anaglypta on topic Re: DHCP and DNS servers (Vigor 2860)
Hello @bluefin2105

You might want to look at my answer here to decide how to enable the DNS server IP address feilds. (clue - don't leave them blank)

https://forum.draytek.co.uk/viewtopic.php?f=14&t=21031#p93456

Basically Draytek changed how this feature works and didn't bother to update the manual.

Hope this helps

John.

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  • bluefin2105
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04 Dec 2019 00:23 #95287 by bluefin2105
Replied by bluefin2105 on topic Re: DHCP and DNS servers (Vigor 2860)
Perfect! Thank you.

Pete

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23 May 2020 22:43 #96244 by daff
Replied by daff on topic Re: DHCP and DNS servers (Vigor 2860)
Glad I found this old thread. Been beating my head against this all evening. I thought it would be possible to use a third party DNS (google or OpenDNS) and still have the router hand out its own address to DHCP clients and act as a caching proxy. But it seems not! In order to force DNS to go through the router, I have to enter its own IP into the two DNS fields, but then it proxies through to the ISP's DNS and I can't find a way override it. Seems like a bit of a limitation.

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29 Jul 2020 17:51 #96798 by aimdev
Replied by aimdev on topic Re: DHCP and DNS servers (Vigor 2860)
Correct me if I am being stupid, but I have just noticed in

LAN - General Setup this

Force router to use "DNS server IP address" settings specified in (lan x)

Setting in the LAN dns address fields 1.1.1.1 & 9.9.9.9 displays them on the Status display.
Is this what you wanted?

I rebooted and they are still set correctly.

I also notice that sometimes the 2860 starts off with 8.8.8.8 & 8.8.4.4 (yuk), then gets the ISP dns addresses.

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