Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Andrews Christopher J.
 2. Date of Event Requiring Statement (Month/Day/Year)
09/19/2012		 3. Issuer Name and Ticker or Trading Symbol
INFOBLOX INC [BLOX]
(Last)
(First)
(Middle)
4750 PATRICK HENRY DRIVE		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, Worldwide Field Ops
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SANTA CLARA, CA 95054		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 24,583 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Option - Right to Buy   (2) 12/14/2016 Common Stock 59,523 $ 1.68 D  
Option - Right to Buy   (2) 12/14/2016 Common Stock 90,476 $ 1.68 D  
Option - Right to Buy   (3) 09/03/2019 Common Stock 2,083 $ 2.13 D  
Option - Right to Buy   (4) 07/05/2020 Common Stock 15,797 $ 6.33 D  
Option - Right to Buy   (4) 07/05/2020 Common Stock 117,535 $ 6.33 D  
Option - Right to Buy   (5) 03/07/2022 Common Stock 8,888 $ 11.25 D  
Option - Right to Buy   (5) 03/07/2022 Common Stock 191,111 $ 11.25 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Andrews Christopher J.
4750 PATRICK HENRY DRIVE
SANTA CLARA, CA 95054		       EVP, Worldwide Field Ops  

Signatures

Christopher J. Andrews, by Robert Horton, his attorney-in-fact 09/27/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Total includes 10,000 Restricted Stock Units that vest 50% on September 15, 2013, and 50% on September 15, 2014.
(2) The option vested and was exercisable as to 25% of the total grant amount on September 25, 2007 and the remaining shares underlying the option vest 2.0833% monthly thereafter.
(3) The option vested and was exercisable as to 25% of the total grant amount on September 1, 2010 and the remaining shares underlying the option vest 2.0833% monthly thereafter.
(4) The option vested and was exercisable as to 25% of the total grant amount on June 18, 2011 and the remaining shares underlying the option vest 2.0833% monthly thereafter.
(5) The option vests and is exercisable as to 25% of the total grant amount on January 2, 2013 and the remaining shares underlying the option vest 2.0833% monthly thereafter

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