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Paper Abstract and Keywords
Presentation 2018-03-01 09:40
A Cooperation Scheme between Distributive Virtual Firewall and NAT for Countermeasuring DNS Amplification Attacks
Eitetsu Gen, Junichi Murayama (Tokai Univ.) IN2017-91
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, DNS amplification attacks are occurring frequently.
This attack is one of DDoS attacks.
Thus, a large-scale attack may cause congestion even in a provider network.
As the solution, we have proposed a distributive virtual firewall scheme for a provider network.
In this scheme, attack traffic from reflector to victim can be blocked.
However, legitimate traffic from reflector to victim may be also blocked.
In order to solve this problem, in this paper, we propose a cooperation scheme of firewall function and address translation function.
In this scheme, address translation is applied to legitimate IP packets from reflector to victim
when attack IP packets are sent from reflector to victim.
This enables easy separation between legitimate traffic and attack traffic
and thus excessive blocking of legitimate traffic can be avoided.
On the other hand, address translation may increase end-to-end packet forwarding delay.
Therefore we evaluated it using a prototype system.
Our evaluation results showed that increased delay was less than 13 percent.
Consequently, the proposed scheme seems effective solution as a countermeasure against DNS amplifying attacks that aim disturbing legitimate communication service.
Keyword (in Japanese) (See Japanese page) 
(in English) DNS Amplification Attack / Reflective DDoS Attack / Firewall / Network Address Translation / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 460, IN2017-91, pp. 11-14, March 2018.
Paper # IN2017-91 
Date of Issue 2018-02-22 (IN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee NS IN  
Conference Date 2018-03-01 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Phoenix Seagaia Resort 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2018-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Cooperation Scheme between Distributive Virtual Firewall and NAT for Countermeasuring DNS Amplification Attacks 
Sub Title (in English)  
Keyword(1) DNS Amplification Attack  
Keyword(2) Reflective DDoS Attack  
Keyword(3) Firewall  
Keyword(4) Network Address Translation  
1st Author's Name Eitetsu Gen  
1st Author's Affiliation Tokai University (Tokai Univ.)
2nd Author's Name Junichi Murayama  
2nd Author's Affiliation Tokai University (Tokai Univ.)
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Date Time 2018-03-01 09:40:00 
Presentation Time 20 
Registration for IN 
Paper # IEICE-IN2017-91 
Volume (vol) IEICE-117 
Number (no) no.460 
Page pp.11-14 
#Pages IEICE-4 
Date of Issue IEICE-IN-2018-02-22 

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