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    Bridge and NAT/route, 4 Interfaces

    Scheduled Pinned Locked Moved Routing and Multi WAN
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    • C
      CollateralD
      last edited by

      Hello,

      maybe this question is a bit ridiculous (maybe not). But I want to know if I can run into problems with
      this kind of setup. The box for pfSense isn't bought yet but it will have 4 nics/ports.

      Setup:
      2 transparent Modems (means if you uplink a box it gets an official IP via DHCP (the IP itself is static))
      from the same provider (maybe in the same subnet, don't know yet).
      2 WAN (pfSense)
      2 LAN (pfSense)

      What I like to do with the pfSense-box is:

      
      WAN1------   NAT  --- LAN1 --- Switch ---"LAN-interface"
                    |                             |
                 pfSense                     Multihomed-Server (no route/no forward between interfaces)
                    |                             |
      WAN2------ bridge ---(LAN2)--------------"Wan-interface"
      
      

      Obviously no interactions between (WAN1 and WAN2) or (WAN2 and LAN1).

      Q:

      1. Is it possible?
      2. Is the conf in pfSense straight forward or tricky?
      3. Can I ran into problems?

      Thanks in advance.
      Regards,
      CD

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      • C
        CollateralD
        last edited by

        So again (i hate that), I am speaking to myself …

        According to this post:
        http://forum.pfsense.org/index.php/topic,29657.0.html

        my planed setup should work.

        BUT, according to this posts:

        http://forum.pfsense.org/index.php/topic,5439.0.html
        http://forum.pfsense.org/index.php/topic,21077.0.html
        http://forum.pfsense.org/index.php/topic,11155.0.html
        http://forum.pfsense.org/index.php/topic,26479.0.html

        and this bug-report:
        http://redmine.pfsense.org/issues/729

        there are annoying behaviors in bridged setups with more than 2 interfaces.

        So could someone give me some hints regarding:

        Lets speak in pfSense words:

        
        WAN1 --- WAN   (NAT)   LAN  --- LAN1 --- Switch --- if_lan
                      pfSense                               Multih. server
        WAN2 --- OPT1 (BRIDGE) OPT2 --- LAN2 -------------- if_wan
        
        

        I do not want that anything from WAN-LAN is traversing to
        OPT1-OPT2, means no TCP/IP no ARP no … nothing.
        Regarding above posts and bug I am not sure with that.

        To make it clear: My intention is to have "2 firewalls" combined
        in one box. The 2 walls should be seperated as much as possible.

        Is this possible with pfSense?

        Thanks.
        Regards,
        CD

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