4 Disable PPP's network address translation

You may already be using PPP's built in network address translation (NAT). If that is the case then you will have to disable it, as these examples use natd(8) to do the same.

If you already have a block of entries to automatically start PPP, it probably looks like this:

    ppp_enable="YES"
    ppp_mode="auto"
    ppp_nat="YES"
    ppp_profile="profile"

If so, you will need to specifically disable ppp_nat by making sure you have ppp_nat="NO" in /etc/rc.conf. You will also need to remove any nat enable yes or alias enable yes in /etc/ppp/ppp.conf.