### config file: /etc/config/network

config interface    lan
    option ipaddr   192.168.1.1
    option netmask  255.255.255.0
    option gateway  192.168.1.2
    option dns      "192.168.1.2 192.168.1.3"
    
    
### code for parsing it
. /etc/function.sh
    
config_cb() {
    echo "New section: $2 (type: $1)"
}

option_cb() {
    echo "  $1 = $2"
}       

config_load network
config_get lanip lan ipaddr
echo "LAN IP: $lanip"