Manual outbound nat mappings do not parse with enabled automatic outbound

  • Scenario;

    Normally, i have enabled 'Automatic outbound NAT rule generation (IPsec passthrough)'. Now i want an extra outbound rule to force my outbound smtp traffic thru a specific virtual IP. After adding this rule, it doesn't get listed when i execute 'pfctl -s nat'.

    When i select 'Manual Outbound NAT rule generation', the rule does get added, but not all the rules from the automatic mode are duplicated. (and i'm not enthousiastic about adding all these rules manually ;) )

    Is this expected behaviour? I thought the manual mappings would also apply when 'Automatic outbound NAT'  is selected  :)

  • Rebel Alliance Developer Netgate

    In order to use the Manual Outbound NAT rules, you must enable Manual Outbound NAT. That's always been the case, it's the expected behavior.

  • Thanks, I misunderstood that bit. Is there a way to duplicate all the outbound nat rules from the automatic mode to the list with manual mappings? I can list them with 'pfctl -s nat', but where to put them? When manual mode is selected, only one manual rule is automatically generated.

  • Rebel Alliance Developer Netgate

    Do you have more than one internal interface?

    It's supposed to add a rule for each internal interface, but it doesn't automatically add the SIP/IPsec static port rules. You will have to put those in manually, and if you want to NAT for any incoming VPN clients you'd have to add those as well.

  • Yes, i have multiple internal and external interfaces. I added the rules manually, and it works fine now. Thanks! :)

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