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    1 WAN with 32 IP ADDRESSES, bridging

    Scheduled Pinned Locked Moved General pfSense Questions
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    • R Offline
      ronwbrown
      last edited by

      I have multiple IP addresses assigned to virtual IPs on a single WAN.  I need to bridge one of those ip addresses to a server on the LAN.  For the life of me, I cannot figure out how to do this.
      Could someone give me an example?  any help would be appreciated.  Thanks.

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      • K Offline
        kferrero
        last edited by

        I believe you are looking for the 1-to-1 NAT which maps an 1 Virtual IP to an internal IP. You can find it on the 1:1 tab of the NAT section.

        Any traffic destined for that virtual IP all gets redirected to the internal IP you specify.

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        • R Offline
          ronwbrown
          last edited by

          Thanks, I know about 1:1 nat, but what I need is to have that Virtual IP assigned to the interface on the server (software requirements)
          I could switch it out before the router and place it directly on the server, but I was hoping for some kind of bridging solution, so I could run everything thru PFSense.

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          • DerelictD Offline
            Derelict LAYER 8 Netgate
            last edited by

            Ideally you should get your ISP to assign a /29 for your interface and route that /27 to an address on that.

            But bridging WAN can be done. What isn't working?

            Chattanooga, Tennessee, USA
            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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            • R Offline
              ronwbrown
              last edited by

              everything is routed from the ISP… no bridging from them.

              I don't want to bridge the entire WAN, just one of the IP addresses..  I don't know how, or if it is even possible

              I actually have 3 subnets

              x.x.x.32/29 (1 gateway 5 usable)
              x.x.x.72/29 (1 gateway 5 usable)
              x.x.x.80.28 (1 gateway 13 usable)

              I want to assign x.x.x.35 to server on lan going thru pfsense

              could I just put in a static route?  hmmmm

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              • T Offline
                TDJ211
                last edited by

                I'm looking to do something similar as I have a server that needs to be NAT-less but still be behind firewall for traffic shaping purposes.

                I think it needs to be put in a DMZ.

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                • R Offline
                  rubic
                  last edited by

                  @ronwbrown:

                  I don't want to bridge the entire WAN, just one of the IP addresses..  I don't know how, or if it is even possible

                  I actually have 3 subnets

                  x.x.x.32/29 (1 gateway 5 usable)
                  x.x.x.72/29 (1 gateway 5 usable)
                  x.x.x.80.28 (1 gateway 13 usable)

                  I want to assign x.x.x.35 to server on lan going thru pfsense

                  You can break the x.x.x.32/29 into two /30 subnets, then assign the second of them to the LAN or DMZ interface of pfSense.

                  ISP x.x.x.33 –--- x.x.x.34/30 pfSense x.x.x.37/30 ----- x.x.x.38/30 Server

                  Now, since the ISP still believes that his router shares L2 segment with the whole x.x.x.32/29 subnet, you have to trick him using ProxyARP VIP x.x.x.38/32 on the WAN of pfSense that will make the server reachable from the Internet.

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