ADSL PPPoE Non-NAT Tunnel



  • I have a PFsense using PPPoE to talk to an ADSL modem. I have a three bit subnet so there is no NAT. Since it is a PPP connection the WAN IP address is the same as the LAN IP address of the system (first three bytes of IPs below just for example)

    LAN
    Network: 1.0.0.160/29
    IP: 1.0.0.166

    WAN
    1.0.0.166/32

    These are public IPs, no NAT is involved.

    I have another site with a conventional NATed configuration:

    WAN (public)
    2.0.0.96/28
    IP: 2.0.0.98

    LAN (private)
    192.168.1.0/24

    I would like to join the two networks together

    1.0.0.160/28 <–> 1.0.0.166 <--> 2.0.0.98 <--> 192.168.1.0/24

    I can't get this to work. Should I be able to? Is there a wrinkle I need to be aware of?



  • I have got this going now. But what confused me is the abscence of a start tunnel button. The pfsense system should be able to send a packet through the tunnel to start it.


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