Exhibit 2.5

        RECEIVER'S ASSIGNMENT OF INTEREST IN INTELLECTUAL PROPERTY RIGHTS

         This Indenture made as of the 16th day of September, 1998;

BETWEEN:

         GRANT  THORNTON  LIMITED,  as receiver  and manager of the property and
         assets of Mentor Networks Inc., (the "Grantor")

                                                     OF THE FIRST PART

         - and -

         ITC CANADA LIMlTED,  a body corporate,  having its registered office in
         the City of Halifax,  County of Halifax,  Province of Nova Scotia, (the
         "Grantee")

                                                     OF THE SECOND PART

RECITALS:

A.       Mentor Networks Inc.  ("Mentor")  granted certain  security to the Nova
         Scotia Business  Development  Corporation,  a Crown  Corporation of the
         Province  of  Nova  Scotia  ("NSBDC")   comprising,   inter  alia,  the
         following:

         a.       a Debenture in the  original  principal  amount of  $2,500,000
                  dated April 29,  1997 and  registered  under the  Corporations
                  Security  Registration Act on May 1, 1997 as number 30928A and
                  also filed under the  Personal  Property  Registry on December
                  23, 1997 as number 155622 (the  "Debenture"),  whereby  Mentor
                  charged  certain  of  its  property,  assets  and  undertaking
                  including  the property  herein  described as security for its
                  indebtedness to NSBDC;

         b.       the  Debenture  provided,  inter  alia,  that upon it becoming
                  enforceable  NSBDC,  by  instrument in writing may appoint any
                  person to be a receiver  with power to  convey,  transfer  and
                  assign  the  title  to any of the  undertaking,  property  and
                  assets charged by the Debenture;

         c.       a Mortgage by way of sublease  of Mentor's  business  premises
                  located in the Purdy's Wharf Tower;

(collectively, the "Security")

B.       Default having occurred under the Security,  Grant Thornton Limited was
         appointed Receiver of the property, assets and undertaking of Mentor by
         NSBDC on July 20, 1998 by written appointment;




C.       In  response  to an open  tendering  process,  the  Grantee  offered to
         purchase the  Receiver's  right,  title and  interests in the assets of
         Mentor on August 19, 1998 which  offer was  accepted  August 21,  1998,
         pursuant  to which the  Grantor  agreed to sell to the  Grantee and the
         Grantee agreed to purchase from the Grantor, the Grantor's right, title
         and interest in the personal  property and assets of Mentor,  including
         the property referred to herein and in Schedule "A" attached hereto.

WITNESSETH THAT:

1.       In  consideration  of the sum of One Dollar  ($1.00) of lawful money of
         Canada  now paid by the  Grantee  to the  Grantor  and  other  good and
         valuable consideration, the receipt whereof is hereby acknowledged, the
         Grantor hereby sells,  assigns, and transfers to the Grantee the right,
         title and interest of the Grantor  under and pursuant to the  Debenture
         in and to all  intellectual  property  of  Mentor,  (the  "Intellectual
         Property"), including registered and unregistered Trade-marks, together
         with the goodwill of the business  related to the goods and/or services
         in  respect of which the  Trademarks  are  registered,  trade and brand
         names,  service marks,  copyrights  and/or  copyright  materials and/or
         materials capable of being copyrighted,  designs, inventions,  patents,
         patent  applications,  patent rights  including any patents  issuing on
         such  applications  or  rights,  licenses,   sublicenses,   franchises,
         formula,  processes,  technology courseware,  software, software engine
         and  related   materials,   training   courses   and  disks,   manuals,
         publications, know-how, business methodology and any property developed
         thereunder and therefrom and other industrial and intellectual property
         owned  and/or  used in  connection  with the  business  of  Mentor  and
         computer programs, customer and vendor lists, and records in connection
         with such business now owned by Mentor, and the right to copy, publish,
         amend,  transmit,  alter,  license,  franchise,  digitize  and  further
         develop  all such  property,  all logos,  marketing  images,  and other
         intellectual property,  including,  without limitation, the Trade-marks
         described  in Schedule  "A"  attached  hereto,  on an "as is, where is"
         basis, without warranties.

2.       The  Grantor  also  assigns  all of its rights (if any) to enforce  all
         confidentiality,   non-disclosure  and  non-competition  covenants  now
         benefiting or which may benefit Mentor,  with past or present employees
         of Mentor.

3.       The Grantor  covenants that it has done no act or thing to encumber the
         Intellectual Property.

4.       The Grantor  covenants and agrees with the Grantee,  its successors and
         assigns,  that it will, from time to time, and at all times  hereafter,
         upon  every  reasonable  request of the  Grantee,  its  successors  and
         assigns,  but at the cost of the Grantee,  its  successors and assigns,
         make, do and execute or cause and procure to be made, done and executed
         all such further  acts,  deeds or  assurances  as may be  reasonably be
         required  by  the  Grantee,   its  successors  and  assigns,  for  more
         effectually and completely  vesting in the Grantee,  its successors and



         assigns,  the Intellectual  Property hereby assigned and transferred in
         accordance with the terms hereof.

         IN WlTNESS WHEREOF the Grantor has caused this indenture to be properly
executed as of the day, month and year herein above first written.

SIGNED, SEALED AND                   )
DELIVERED in the presence of         )     GRANT THORNTON LIMITED, as
                                     )     receiver  and manager of the property
                                     )     and assets of Mentor Networks Inc.
/s/  Robert G. MacKeigan             )
- --------------------------------     )
                                     )        By: /s/ Ross Landers
                                                 -------------------------------





         Schedule "A" to Assignment of Interest in Intellectual Property


1.       Desk Top Coach
         US Trade-mark serial number 75513389

2.       Desk Top Coach
         Canadian Trade-mark application number 087577000

3.       Intermed
         Canadian Trade-mark application number 077377500

4.       Digital Assets
         Canadian Trade-mark application number 074982300

5.       Mentor Networks & Design
         Canadian Trade-mark application number 074900300
         Canadian Trade-mark registration number TMA 475109







DATED:         September                                                    1998
- --------------------------------------------------------------------------------




BETWEEN:



         GRANT  THORNTON  LIMITED,  as receiver  and manager of the property and
         assets of Mentor Networks Inc.,

                                                              GRANTOR


                                     - and -


         ITC CANADA LIMITED,  a body corporate,  having its registered office in
         the City of Halifax, County of Halifax, Province of Nova Scotia,

                                                              GRANTEE



- --------------------------------------------------------------------------------

                      RECEIVER'S ASSIGNMENT OF INTEREST IN
                          INTELLECTUAL PROPERTY RIGHTS
                                    Parcel 6


- --------------------------------------------------------------------------------


                                  C. Holm, Q.C.
                                 HUESTIS o HOLM
                            Barristers and Solicitors
                  708 - 1809 Barrington Street - CIBC Building
                         Halifax - Nova Scotia - Canada
                                     B3J 3K8

                                   File #32796




        RECEIVER'S ASSIGNMENT OF INTEREST IN INTELLECTUAL PROPERTY RIGHTS


           This Indenture made as of the 16th day of September, 1998;


BETWEEN:

                  GRANT  THORNTON  LIMITED,  as  receiver  and  manager  of  the
                  property and assets of High  Performance  Group (Canada) Inc.,
                  (the "Grantor")

                                                         OF THE FIRST PART

                  - and -

                  ITC CANADA LIMITED,  a body  corporate,  having its registered
                  office in the City of Halifax, County of Halifax,  Province of
                  Nova Scotia, (the "Grantee")

                                                         OF THE SECOND PART


RECITALS:

A.       High  Performance  Group (Canada) Inc. ("HPG") granted certain security
         to Nova Scotia Business Development Corporation, a Crown Corporation of
         the  Province  of Nova Scotia  (NSBDC)  comprising  a Debenture  in the
         original  principal  amount of  $1,000,000  dated  April  29,  1997 and
         registered under the Corporations Securities Registration Act on May 1,
         1997 as  number  30927A  and also  filed  under the  Personal  Property
         Registry on  December  23, 1997 as number  155606,  (the  "Debenture"),
         whereby HPG charged  certain of its  property,  assets and  undertaking
         including   the   property   herein   described  as  security  for  its
         indebtedness to NSBDC;

B.       The Debenture provided,  inter alia, that upon it becoming  enforceable
         NSBDC by  instrument in writing may appoint any person to be a Receiver
         with  power to  convey,  transfer  and  assign  the title to any of the
         undertaking, property and assets charged by the Debenture;

C.       Default having occurred under the Debenture, Grant Thornton Limited was
         appointed  Receiver of the property,  assets and  undertaking of HPG by
         NSBDC on July 20, 1998 by written appointment;

D.       In  response  to an open  tendering  process,  the  Grantee  offered to
         purchase the Receiver's right, title and interests in the assets of HPG
         on August 19, 1998 which offer was accepted  August 21, 1998,  pursuant



         to which the  Grantor  agreed to sell to the  Grantee  and the  Grantee
         agreed to purchase  from the Grantor,  the Grantor's  right,  title and
         interest  in the  courseware  and other  assets of HPG,  including  the
         property referred to herein.



WITNESSETH THAT:

1.       In  consideration  of the sum of One Dollar  ($1.00) of lawful money of
         Canada  now paid by the  Grantee  to the  Grantor  and  other  good and
         valuable consideration, the receipt whereof is hereby acknowledged, the
         Grantor hereby sells,  assigns, and transfers to the Grantee the right,
         title and interest of the Grantor  under and pursuant to the  Debenture
         in  and  to  all  intellectual  property  of  HPG,  (the  "Intellectual
         Property"), including registered and unregistered Trade-marks, together
         with the goodwill of the business  related to the goods and/or services
         in  respect of which the  Trademarks  are  registered,  trade and brand
         names,  service marks,  copyrights  and/or  copyright  materials and/or
         materials capable of being copyrighted,  designs, inventions,  patents,
         patent  applications,  patent rights  including any patents  issuing on
         such  applications  or  rights,  licenses,   sublicenses,   franchises,
         formula,  processes,  technology courseware,  software, software engine
         and  related   materials,   training   courses   and  disks,   manuals,
         publications know-how,  business methodology and any property developed
         thereunder and therefrom and other industrial and intellectual property
         owned and/or used in  connection  with the business of HPG and computer
         programs,  customer and vendor lists,  and records in  connection  with
         such business now owned by HPG, and the right to copy, publish,  amend,
         transmit, alter, license,  franchise,  digitize and further develop all
         such property,  all logos,  marketing  images,  and other  intellectual
         property, on an "as is, where is" basis, without warranties.

2.       The  Grantor  also  assigns  all of its rights (if any) to enforce  all
         confidentiality,   non-disclosure  and  non-competition  covenants  now
         benefiting or which may benefit HPG, with past or present  employees of
         HPG.

3.       The Grantor  covenants that it has done no act or thing to encumber the
         Intellectual Property.

4.       The Grantor  covenants and agrees with the Grantee,  its successors and
         assigns,  that it will, from time to time, and at all times  hereafter,
         upon  every  reasonable  request of the  Grantee,  its  successors  and
         assigns,  but at the cost of the Grantee,  its  successors and assigns,
         make, do and execute or cause and procure to be made, done and executed
         all such further  acts,  deeds or  assurances  as may be  reasonably be
         required  by  the  Grantee,   its  successors  and  assigns,  for  more
         effectually and completely  vesting in the Grantee,  its successors and
         assigns,  the Intellectual  Property hereby assigned and transferred in
         accordance with the terms hereof.

         IN WITNESS WHEREOF the Grantor has caused this indenture to be properly
executed as of the day, month and year herein above first written.




SIGNED, SEALED AND DELIVERED        )    GRANT THORNTON LIMITED, as
in the presence of:                 )       receiver and manager of the property
                                    )       and assets of High Performance
                                    )       Group (Canada) Inc.
/s/  Robert G. MacKeigan            )
- ---------------------------------   )
                                    )
                                    )        By: /s/ Ross Landers
                                                --------------------------------







DATED:        September                                                     1998
- --------------------------------------------------------------------------------



BETWEEN:



         GRANT  THORNTON  LIMITED,  as receiver  and manager of the property and
         assets of High Performance Group (Canada) Inc.,

                                                              GRANTOR


                                     - and -


         ITC CANADA LIMITED,  a body corporate,  having its registered office in
         the City of Halifax, County of Halifax, Province of Nova Scotia,

                                                              GRANTEE



- --------------------------------------------------------------------------------


                      RECEIVER'S ASSIGNMENT OF INTEREST IN
                          INTELLECTUAL PROPERTY RIGHTS
                                    Parcel 7

- --------------------------------------------------------------------------------



                                  C. Holm, Q.C.
                                 HUESTIS o HOLM
                            Barristers and Solicitors
                  708 - 1809 Barrington Street - CIBC Building
                         Halifax - Nova Scotia - Canada
                                     B3J 3K8

                                   File #32796