# subclass with guard declaration config

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

# superclass declaration
class "foobar" {
    match if option myversion = 0:1;
    match option mysystem;
}

# simple subclass declaration
subclass "foobar" "system1";

# option setting subclass declaration
subclass "foobar" "system2" { option mydescr "1.2"; }

# complex subclass declaration
subclass "foobar" "system3" {
    option mydescr "1.3";
    next-server 192.168.0.1;
}