POWER OF ATTORNEY

      The undersigned, as a Section 16 reporting person of A10 Networks, Inc.
(the "Company"), hereby constitutes and appoints Robert Cochran and
Jill Osato, the undersigned's true and lawful attorneys-in-fact, to:

      1. Complete and execute Forms 3, 4 and 5 and other forms and all
amendments thereto as such attorneys-in-fact shall in their discretion
determine to be required or advisable pursuant to Section 16 of the Securities
Exchange Act of 1934 (as amended) and the rules and regulations promulgated
thereunder, or any successor laws and regulations, as a consequence of the
undersigned's ownership, acquisition or disposition of securities of the
Company; and

      2. Do all acts necessary in order to file such forms with the SEC, any
securities exchange or national association, the Company and such other person
or agency as the attorneys-in-fact shall deem appropriate.

      The undersigned hereby ratifies and confirms all that said attorneys-in-
fact and agent shall do or cause to be done by virtue hereof.  The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
at the request of the undersigned, is not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934 (as amended).

      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
Company and the foregoing attorneys-in-fact.

      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 23 day of February, 2017.

      					Signature: /s/ Shiva Kumar Natarajan
      					Print Name:  Shiva Kumar Natarajan