Ian Troupe MA MSc 
 
Senior Assistant Registrary 
(Freedom of Information Officer) 
Mr Josh Walker 
 
by email 
 
Secretariat 
 
 
Ref: FOI-2008-126 
10 November 2008 
 
Dear Mr Walker, 
 
Your request was received on 20 October 2008 and I am dealing with it under the terms of the 
Freedom of Information Act 2000 (FOIA).  
 
Your requests are listed below, followed by our responses; 
 
(a) For each 10 minute period on Sunday 12th October 2008, 
 
(i) how many packets left the CUDN with a destination IP address in the range 
69.63.176.0 to 69.63.191.255? 
(ii) what was the total number of bytes in the packets referred to in (a)(i)?  
(iii) how many packets entered the CUDN with a source IP address in the range 
69.63.176.0 to 69.63.191.255? 
(iv) what was the total number of bytes in the packets referred to in (a)(iii)? 
 
(b) For each 10 minute period on Monday 13th October 2008, 
 
(i) how many packets left the CUDN with a destination IP address in the range 
69.63.176.0 to 69.63.191.255? 
(ii) what was the total number of bytes in the packets referred to in (b)(i)? 
(iii) how many packets entered the CUDN with a source IP address in the range 
69.63.176.0 to 69.63.191.255? 
(iv) what was the total number of bytes in the packets referred to in (b)(iii)? 
 
 
We do not hold the information requested. 
 
If you are unhappy with the service you have received in relation to your request and wish to 
make a complaint or request a review of this decision, you should write to the Administrative 
Secretary, quoting the reference above, at the Secretariat, The Old Schools, Cambridge, CB2 
1TN.  If you are not content with the outcome of your complaint, you may apply directly to 
the Information Commissioner for a decision. Generally, the Information Commissioner 
cannot make a decision unless you have exhausted the complaints procedure provided by the 
 
University Offices 
The Old Schools 
Cambridge CB2 1TN. 
 
 
Telephone: 01223 764142 
Fax: 01223 332332 
E-mail: [email address] 
 

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University. The Information Commissioner can be contacted at: The Information 
Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire SK9 5AF.  
 
 
Yours sincerely, 
     I. D Troupe  
 
University Offices 
The Old Schools 
Cambridge CB2 1TN. 
 
 
Telephone: 01223 764142 
Fax: 01223 332332 
E-mail: [email address] 
 

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