# multiple groups declaration config

# options
option mysystem code 250 = text;
option myversion code 251 = unsigned integer 16;
option myvalue code 252 = text;

# superclass declaration
class "foobar" {
    match option mysystem;
    option myversion 1;
}

# simple subclass declaration
subclass "foobar" "version1";

group first {
    next-server 10.10.10.1;
    # this option is not propagated because the superclass takes precedence
    option myversion 99;

    # option setting subclass declaration
    subclass "foobar" "version2" { option myversion 2; }

    # complex subclass declaration
    subclass "foobar" "version3" {
        option myversion 3;
        next-server 192.168.0.1;
    }

    group second {
        # another simple subclass declaration
        subclass "foobar" "version10";

        # and a final subclass declaration
        subclass "foobar" "version20" {
            option myversion 20;
            next-server 192.168.0.20;
            option myvalue "twenty";
        }

        # positions of delaration do not matter
        option myvalue "ten";
    }
}