A rule to show cause issued on defendant father’s “motion to set aside judgment” for child support, on the ground it was obtained by ill practice. The mother argued, in her trial court memorandum in opposition filed the day following the hearing on the rule, that the motion’s claim of nullity was not presentable by summary procedure. The trial judge denied the motion. We reverse.

There is no transcript of the hearing on the rule, but apparently the hearing was limited to argument, and the allegations of ill practice were not tried. Apparently the trial judge declined to entertain the claim of nullity of judgment because presented not by petition but by rule. That was error. “All objections which may be raised through the dilatory exception are waived unless pleaded therein,” La.C.C.P. 926 (including unauthorized use of summary proceeding, 926(3)). “Exceptions to a *1195... rule to show cause ... shall be filed prior to the time assigned for, and shall be disposed of on, the trial,” C.C.P. 2593. The mother did not file the dilatory exception at any time. If one could argue that her trial court memorandum might be considered as if an exception, it was not filed prior to the time assigned for trial. The action of nullity — especially in view of its allegation that the mother’s lawyer advised the father's lawyer that the support rule was being continued, yet took the father into court unrepresented to consent to a judgment— should therefore have been tried notwithstanding that it was presented by rule rather than by petition.1

Reversed; remanded.