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    MultiWan Dns Problem when link1 goes down

    Routing and Multi WAN
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    • M
      mococanet last edited by

      Dear Guys

      I have a problem with DNS over a multiwan (failover) configuration…. the problem happens when the link1 goes down... all workstation and include the pfsense mashine stopped to resolve names... everybody can ping IP but can't ping names... here is my configurations:

      LAN - 192.168.1.2
      WAN1 - 192.168.200.101 -> GW 192.168.200.100
      WAN2 - 192.168.201.101 -> GW 192.168.201.101

      General Setup:
      Dns1 - 8.8.8.8 - using the gateway Wan1GW
      Dns2 - 8.4.4.4 - using the gateway Wan2GW

      On the firewall rules, i have a fullpass over the lan configuration... normally

      My route table with both links working:
      default 192.168.201.100
      8.8.4.4 192.168.200.100
      8.8.8.8 192.168.201.100

      On the gateway groups i'm monitoring 8.8.8.8 for wan and 8.8.4.4 for wan2

      Block private networks - Unchecked for both wans
      Block bogon networks - Unchecked for both wans

      I'm running pfsense 2.2.2

      Maybe someone can help me , please?

      Thank you ,

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      • P
        phil.davis last edited by

        Dns2 - 8.4.4.4 - using the gateway Wan2GW

        I guess that is just a typo in your post - should be 8.8.4.4

        Which DNS are you using - Forwarder (dnsmasq) or Resolver (unbound)?
        If Resolver, is forwarding mode enabled or not?

        As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
        If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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        • M
          mococanet last edited by

          sorry, I typed wrong here … in pfSense I use 8.8.4.4 ...

          I've tried both (dnsmasq/unbound) and unfortunately it did not work .. when I used the resolver I've enabled 'forward mode' normally

          This error is very strange and is driving me crazy

          thanks

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          • M
            mococanet last edited by

            After much suffering… the problem was solved:

            1- request to providers to send me a public network "/30" instead of a private network;

            2- I changed all workstations to get IP over DHCP (pfsense server). I had set fixed IP for each workstation;

            Problem solved, failover working fine ...

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