+ local mtu macaddr txqueuelen
+ config_get mtu "$config" mtu
+ [ -n "$macaddr" ] || config_get macaddr "$config" macaddr
+ config_get txqueuelen "$config" txqueuelen
+ [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
+ $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
+
+ [ "$proto" = none ] || ifconfig "$iface" 0.0.0.0