Dual WAN manual NAT being blocked by firewall?



  • Hello Guys,

    I am trying to configure Pfsense in a dual wan mode.
    Currently I have 2 WANs succesfully setup.

    I have created manual rules for outbound nat. Please find the attached screenshots.

    On network 192.168.10.1, I have internet with WAN1, which is perfect.
    On network 192.168.20.1, I don't have any internet. It seems like the firewall is blocking this, see screenshots.

    Anything I'm doing wrong here?

    Thanks!

    Kind regards,

    Roy

    ![Screen Shot 04-15-14 at 11.27 PM 001.PNG](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.27 PM 001.PNG)
    ![Screen Shot 04-15-14 at 11.27 PM 001.PNG_thumb](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.27 PM 001.PNG_thumb)
    ![Screen Shot 04-15-14 at 11.30 PM 001.PNG](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.30 PM 001.PNG)
    ![Screen Shot 04-15-14 at 11.30 PM 001.PNG_thumb](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.30 PM 001.PNG_thumb)
    ![Screen Shot 04-15-14 at 11.30 PM.PNG](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.30 PM.PNG)
    ![Screen Shot 04-15-14 at 11.30 PM.PNG_thumb](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.30 PM.PNG_thumb)
    ![Screen Shot 04-15-14 at 11.31 PM.PNG](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.31 PM.PNG)
    ![Screen Shot 04-15-14 at 11.31 PM.PNG_thumb](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.31 PM.PNG_thumb)



  • Firewall rules.

    ![Screen Shot 04-15-14 at 11.33 PM.PNG](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.33 PM.PNG)
    ![Screen Shot 04-15-14 at 11.33 PM.PNG_thumb](/public/imported_attachments/1/Screen Shot 04-15-14 at 11.33 PM.PNG_thumb)



  • Your firewall rule for LAN2 interface allowing outbound is wrong. You have set the source to LAN Net, have to be LAN2 Net!



  • Thank you, that was a stupid mistake.

    Fixed that, so no more firewall blocks, but still no internet on the second lan.

    Any ideas?



  • You need at least 4 Outbound NAT rules:
    On WAN: LANnet to any and LAN2net to any.
    On WAN2: LANnet to any and LAN2net to any.

    By default, both LAN and LAN2 traffic will go out the default gateway (usually WAN). So next you will have to setup gateway group/s and policy-routing rules to direct traffic to the WANs that you want.

    Note: Automatic Outbound NAT should work fine in your configuration - it will NAT both LANs going out both WANs. So I do not understand why you have chosen Manual Outbound NAT??? Go back to Automatic and see if it works.



  • Changed it back to automatic mode and assigned different gateways in the allow all rules for both LAN 1 and LAN 2.

    That fixed it.

    Thanks for the support.


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