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    Filter an IPV6-address not possible !!?? :(

    Scheduled Pinned Locked Moved IPv6
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    • L Offline
      louis2
      last edited by louis2

      To be able to directly route to local clients, I have to use IPV6-addresses.

      Since I would like to restrict the accessibility to certain lan's and to certain clients, I tried to setup a rules like this:

      Allow <LanA> <some port>
      Allow <LanB> <some port>
      Allow <IPV6-address-X> <some port>

      However that is not possible.

      I first tried to define a rule:
      Allow IP6-rangeA to some port
      => not possible

      Then I tried to define a (network) alias:
      SomeLans: 'IP6-range Lan-A' + 'Ip6-range LanB'
      => not possible

      Then I tried to do the same for a single IPV6 address
      => not possible

      Only 32 bit addresses supported

      c92f9546-e0b9-4d0f-a2cd-9cedd5ff5343-image.png

      Not so happy with this 😧

      Note that I partly worked around this by
      defining rules like
      WAN
      pass
      only IPV6
      destination VLAN-A (having both IPV4 and IPV6 addresses)
      destination port <some port>

      patient0P 1 Reply Last reply Reply Quote 0
      • patient0P Offline
        patient0 @louis2
        last edited by patient0

        @louis2 what pfSense version are you using? It works beautifully for me.

        You use type 'Host' for a host and of typoe 'Network' for a networks.

        But what you can't do is use an IPv6 address as type 'Host' with netmask 128. Just don't add a netmask and netmask is not necessary for hosts since the type 'Host' makes it clear that it expects a host.

        Screenshot 2025-10-13 at 18.17.58.png

        Addition: what is not possible, is to use type 'Host' to add multiple IPv6 host address in one step, like 2001:db8:dead:beaf::1-2001:db8:dead:beaf::9. That is indeed possible for IPv4 but not IPv6.

        L 1 Reply Last reply Reply Quote 0
        • L Offline
          louis2 @patient0
          last edited by louis2

          @patient0

          You are right! It is possible via an alias! Do not know why it did not work. See screen shot. I was only allowed to select IPV4-ranges /32 max .....

          My confusion started there

          02bbb5a2-883d-4cb1-b713-839d127ee115-image.png

          No idea why I had this trouble ! Note that I still can not enter an address where the text states 'alias or address'

          For info I am running the latest pfSense+ version

          patient0P 1 Reply Last reply Reply Quote 0
          • patient0P Offline
            patient0 @louis2
            last edited by

            @louis2 said in Filter an IPV6-address not possible !!?? :(:

            No idea why I had this trouble ! Note that I still can not enter an address where the text states 'alias or address'

            Mmmh, if I set the 'Address Familty' to 'IPv6' it does work for me (but not if set to 'IPv4+IPv6')

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