# File lib/tree.rb, line 140
    def children(cidr)
        # validate object
        if ( !cidr.kind_of?(NetAddr::CIDR) )
            begin
                cidr = NetAddr::CIDR.create(cidr)
            rescue Exception => error
                raise ArgumentError, "Provided argument raised the following " +
                                     "errors: #{error}"
            end
        end

        list = []
        me = find_me(cidr)
        if (me)
            me.tag[:Subnets].each do |child|
                list.push( NetAddr.cidr_build(child.version, child.to_i(:network), child.to_i(:netmask)) )
            end
        end

        return(list)
    end