Skip to Content
[CAIDA - Cooperative Association for Internet Data Analysis logo]
The Cooperative Association for Internet Data Analysis > data : passive : backscatter_request.xml
CAIDA Backscatter Data Request Form
Backscatter data are available for use by academic researchers and US government agencies. These data are also available for corporate entities (including corporate researchers) who participate in CAIDA's membership program. Information on membership levels, services, and rates is found on the CAIDA Sponsorship Information page, or by emailing

Please note this dataset contains response traffic from DDoS attack victims, not DDoS attack traffic.

Please, complete and submit the form below to request access to backscatter data. It usually takes about two to three business days to process your request. Upon approval you will receive an email with instructions on how to download the data you requested. If you have any questions or problems using this form, please contact

For information about using CAIDA data, please see the CAIDA Data Usage FAQ

Required fields are indicated by an asterisk (*).
*Relationship to CAIDA:    I am an academic researcher / student
   I am a CAIDA sponsor
   I am a U.S. government contractor
   I am from a U.S. government agency
   Other (please specify):
*First (Given) Name: 
*Last (Family) Name: 
*Phone Number: 
*Full name of your Institution/Company: 
*Mailing Address: 
*Your email at this Institution/Company: 
(an academic email address is required for academic researchers/students)
*Position:     Professor/Principal investigator      
   Other (please specify):       
Advisor's Name (required for students): 
URL of your project
(if available): 
* Which datasets are you requesting access access to?
( please check the appropriate box(es) )
If you already have a password to access CAIDA's anonymized high-speed traces, backscatter, restricted witty worm, telescope, DDoS or DNS root/gTLD RTT datasets, check the following box to retain the password.
Have password?    I already have a password, and would like to keep it.

* Please submit a detailed 1-2 paragraph description summarizing your research goals.

How many PhD students will use the data? (if applicable):
How many Masters students will use the data? (if applicable):
How many other students will use the data? (if applicable):

CAIDA will do dataset related announcements, like the availability of a new datasets, on the mailinglist.

    Subscribe me to

Acceptable Use Agreement

CAIDA strongly favors wide dissemination of its datasets to legitimate researchers, and CAIDA also takes seriously its obligation to responsibly disclose datasets which may present a risk if misused.

Please read the terms of the CAIDA Acceptable Use Agreement below: (printable version in PDF format)

*Enter your initials if you have read and agree to the terms set forth above:    

When referencing this data (as required by the AUA), please use:
(replace '2007' by the year of the dataset you are using)

The CAIDA UCSD Backscatter-2007 Dataset - <dates used>,

Users are encouraged, but not required, to include the following attribution in their acknowledgments section:

Support for Backscatter Datasets and the UCSD Network Telescope is provided by Cisco Systems, Limelight Networks, the US Department of Homeland Security, the National Science Foundation, DARPA, Digital Envoy, and CAIDA Members.

  Last Modified: Thurs Jul-12-2012 17:13:46 PDT
  Page URL: