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    ASUS RT-N56U B1 and OpenDNS

    This is a discussion on ASUS RT-N56U B1 and OpenDNS within the Sky Broadband (Fibre) Help forums, part of the Sky Broadband help and support category; Hi all, Long time cable customer, moved house and got Sky Fibre a couple of months ago. I like running ...

    1. #1
      chrisml's Avatar
      chrisml is offline Sky User Member
      Broadband ISP: Sky Fibre Unlimited
      Router: Sky Q Hub ER115
      Sky TV: Sky Basic
      Join Date
      Jan 2019
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      Question ASUS RT-N56U B1 and OpenDNS

      Hi all,

      Long time cable customer, moved house and got Sky Fibre a couple of months ago.

      I like running my DNS through OpenDNS servers, however I quickly realised the ER115 doesn't let you change the DNS servers.

      Luckily I'd previously been using my trusty RT-N56U as an Access Point while on cable and that lets me change DNS servers, so I had a go at connecting it to the Sky Hub.

      It took a lot of trial and error but in the end I got it working by joining an ethernet cable from eth1 on the Sky Hub to the WAN port on the ASUS (not the recommended way, I know!). I turned off WiFI on the Sky Hub and enabled it on the ASUS.

      This resulted in the Sky Hub having an IP of and the ASUS

      I configured the OpenDNS servers on the ASUS and all was well.

      I've also managed to get it working by joining the ethernet cable to an ethernet port on the ASUS instead of the WAN port. It seems that after messing with the ASUS I need to restart the Sky Hub for it to work. Although when I run it this way the internet light on the ASUS isn't on, but internet works.

      However, when I connect it this way, it seems like the DNS setting to OpenDNS is being ignored.

      What I want to achieve is to have the routers on the same subnet (192.168.0.XXX?) with OpenDNS working.

      Anyone have any ideas?

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    3. #2
      marjohn56's Avatar
      marjohn56 is offline Sky User Member
      Exchange: Cricklewood
      Broadband ISP: ZEN
      Router: Billion 8800NL(Modem Bridge) + OPNsense 19.7.b
      Sky TV: Sky Q 2Tb+Mini
      Join Date
      Dec 2011
      Thanked 141 Times in 132 Posts

      Re: ASUS RT-N56U B1 and OpenDNS

      Make sure you have turned off ( if you can ) the dhcp servers on the ER115 otherwise your LAN devices will probably get their settings from that, set up the dhcp server on the RT56 but you'll need to set the gateway to point at the ER115. The best solution to be honest is to just get a separate modem and bin the ER115 off completely. It's possible to use the RT-N56 to connect using the required option61.
      Artificial Intelligence is no match for Natural Stupidity.



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