
    # Create new chain to handle PPP interfaces from PPTP connections.
    # Note: We cannot simply permit ppp+, as that would put a huge hole in the
    # firewall for PPPoE users.
    /sbin/iptables --new-chain PPPconn
    /sbin/iptables --new-chain PPPconn_1
    /sbin/iptables --append INPUT -j PPPconn
    /sbin/iptables --append OUTPUT -j PPPconn
    /sbin/iptables --append PPPconn -j PPPconn_1
