Exhibit 32

      CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


I, Richard A. Karp, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual
Report of Catapult Communications Corporation on Form 10-K for the fiscal year
ended September 30, 2004 fully complies with the requirements of Section 13(a)
or 15(d) of the Securities Exchange Act of 1934 and that information contained
in such Annual Report on Form 10-K fairly presents in all material respects the
financial condition and results of operations of Catapult Communications
Corporation.





                                          By:  /s/ RICHARD A. KARP
                                          -----------------------------------
                                          Name: Richard A. Karp
                                          Title:   Chief Executive Officer

I, Christopher A. Stephenson, certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the
Annual Report of Catapult Communications Corporation on Form 10-K for the fiscal
year ended September 30, 2004 fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 and that information
contained in such Annual Report on Form 10-K fairly presents in all material
respects the financial condition and results of operations of Catapult
Communications Corporation.



                                          By:  /s/ CHRISTOPHER A. STEPHENSON
                                          -----------------------------------
                                          Name: Christopher A. Stephenson
                                          Title:   Chief Financial Officer