-. $CONFIG_FILE
-
-if [ -z "$OUTDEV" ] ; then
- eewarn "Outgoing device is not set in $CONFIG_FILE"
- eewarn "Setting Outgoing device to auto"
- OUTDEV=auto
-fi
+# defaults if unconfigured
+[ -n "$OUTDEV" ] || OUTDEV=auto
+[ -n "$IPTABLES" ] || IPTABLES=iptables