NAT between lans



  • Hello.

    Is it possible to NAT between lans in pfsense ? Here's the problem:

    PFS1 LAN 1: 192.168.11.0/24
    PFS1 LAN 2: 172.16.1.1/30

    PFS2 LAN 1: 192.168.16.1/28
    PFS2 LAN 2: 172.16.1.2/30
    PFS2 LAN 3: 172.16.1.5/30

    PFS3 LAN1: 192.168.12.0/24
    PFS3 LAN2: 172.16.1.6/30

    So I have 3 pfsense boxes serving clients on LAN1 subnets with back to back networks between them for routing, I want to NAT requests from PFS1 LAN1 subnet has they reach PFS2 and going to PFS3:

    192.168.11.1 accessing 192.168.12.1 routes trough 172.16.1.2, applies NAT has 182.168.16.2, routes trough 172.16.1.6 and reaches 192.168.12.1 has 192.168.16.2 so the packet has a route back, which can only be on 192.168.16.0/28.

    Is this possible ?

    I have all the routing taking place and connections from 192.168.11.0/24 reach PFS3 with destination 192.168.12.1, but the source IP is not being nated and appears has 192.168.11.1 instead of 192.168.16.2.

    On PFS2 box I have enabled advanced NAT and created a rule like this:

    Interface: LAN2
    Source: 192.168.11.0/24
    Destination: 192.168.12.0/24
    Nat Address: 192.168.16.2/32
    ANY dst and src port

    But the packets are still hitting destination with the original src address .

    Any way of making this work ?

    Thanks.


  • Banned

    Huh… why'd you do any such thing?



  • Cause the costumer only routes 192.168.16.0/28, politics.

    Nervermind I get it. I was doing the NAT at the wrong interface, working now.


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