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    Multi Subnet/WAN from multi ISP to single interface

    Scheduled Pinned Locked Moved Routing and Multi WAN
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    • N
      nicknuke
      last edited by

      Right now I am using unmanaged switch to distribute Public IP from 2 ISP ( each have /28 network ).
      The IPs are being used for some directly connected servers,
      and to 2 pfsense nat boxes ( physically attached nic to the switch )

      I know it may not be a good practice, but to my surprise the unmanaged switch works.
      If I put ip addr add ( along with the additional routing table ) on any of the linux servers,
      they have 2 diff IP from 2 diff. ISP.

      Now on the pfsense nat box, how do i achieve this ?
      I knew i can put additional IP in CARP virtual interface, but they're in the same subnet and same gateway from 1 ISP.
      Will I be able to just add ISP2 Gateway, and add ISP2 public IP to this single WAN interface as virtual IP / CARP in pfsense ?

      The reason is there will be third ISP coming in.. And I think having additional pfsense is not quite practical.

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      • V
        viragomann @nicknuke
        last edited by

        @nicknuke
        If you don't have enough network ports on pfSense consider to get a VLAN capable switch and assign both WANs as VLANs to pfSense.

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        • N
          nicknuke @viragomann
          last edited by

          @viragomann

          Yes... thought so .. Guess it will have to come to that after all...
          Thanks !

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