BINAT OK over IPsec on 2.1?



  • Hello,

    I understand that bidirecting NAT'ing is now supported over IPSec in 2.1?

    So, the procedure to solve a routing conflict for this would be:

    
    192.168.1.0/24 <=pfsense 2.1==>=binat==> 192.168.70.0/24 <====ipsec====><=remote endpoint=> 192.168.1.0/24
                                            (NAT'd local LAN)
    
    

    Configure IPSec tunnel as normal on the pfSense side, but in Phase2 under Local Network NAT/BINAT, select Type: 'LAN subnet' and fill in 192.168.70.0/24?

    Then, after the tunnel establishes, the remote LAN can access the local IPs as follows?

    192.168.70.1 -> 192.168.1.1
    192.168.70.2 -> 192.168.1.2
    192.168.70.3 -> 192.168.1.3
    etc.?


  • Rebel Alliance Developer Netgate

    Yes, NAT+IPsec works fine on 2.1 and later.

    It's close to what you said: Select Type=LAN Subnet, and then in the NAT options directly under that choice, pick Network and then enter 192.168.70.0/24

    Firewall rules would still refer to 192.168.1.x (rules after NAT, as always)


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