syslogd_flags="-4 -s"
sendmail_enable="NONE"
lpd_enable="NO"
nfs_client_enable="NO"
nfs_server_enable="NO"
portmap_enable="NO"

ppp_enable="YES"
ppp_mode="ddial"
ppp_profile="provider"
ppp_nat="NO"

firewall_enable="YES"
firewall_script="/etc/ipfw.conf"
firewall_type="open"
firewall_quiet="NO"

natd_enable="YES"
natd_interface="tun0"
natd_flags="-f /etc/natd.conf"
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お気づきの点があればご指摘ください。