PfSense 2 WAN - 2 LAN , WAN is DHCP, both WAN gets same gateway



  • Hello,

    I'm new to pfSense, read very good reviews about it, and also noticed it supported multiple WAN interfaces.

    Here is the deal:

    I have two WAN interfaces (DHCP) which get their IP addresses without issues.
    Both interfaces share the same gateway. (automatically provided by ISP)
    I have two LAN interfaces (static - 192.168.1.0/24 & 192.168.2.0/24)

    I want to have two completely separate traffic "tubes" if I can call it that way, meaning all traffic from/to LAN1 gets transferred from/to WAN1 , all traffic from/to LAN2 gets transferred through WAN2.

    no failover no loadbalancing, just plain NAT.

    I tried using manual outbound rules and LAN1->WAN1 works fine, but LAN2->WAN2 does not work (no internet access) even though WAN2 has public ip address, and a computer connected to LAN2 can ping LAN2s ip.

    I also noticed any system in LAN1 subnet can ping LAN2 interface ip address and viceversa (even though its /24).

    Perhaps you guys can help me on this one. I'd really appreciate it, thanks.



  • Are the outbound NAT rules correct? You need outbound NAT rules for both WAN1 and WAN2 similar to the automatic rules that get generated for WAN1. You need two gateways under System > Routing for WAN1 and WAN2.

    In the firewall rules for LAN1 and LAN2 you must use the advanced gateway parameter and set it to WAN1 and WAN2 respectively for your Internet traffic rule.


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