NDLI: Impact of IPsec and 6to4 on VoIP quality over IPv6

Content Provider	IEEE Xplore Digital Library
Author	Yasinovskyy, R. Wijesinha, A.L. Karne, R.
Copyright Year	2009
Description	Author affiliation: Towson University, Maryland, USA (Yasinovskyy, R.; Wijesinha, A.L.; Karne, R.)
Abstract	We conduct experiments in a LAN environment to determine the impact of IPsec and 6to4 encapsulation on VoIP quality in future IPv6 networks. We measure VoIP performance in the presence of varying background traffic for each of four IPsec scenarios with IPv6 and 6to4 encapsulation, with and without NAT, and compare with IPv4. The scenarios reflect situations commonly encountered in today's VPNs including no-security (i.e., traffic bypasses IPsec), network-to-network (i.e., an IPsec VPN between corporate sites), client-to-network (i.e., remote user access to a corporate network via IPsec tunnels), and client-to-client (i.e., IPsec transport mode for secure end-to-end communication). We use the popular Openswan implementation of IPsec and focus on ESP with the authentication option. The measures used for evaluating VoIP performance are delta (packet inter-arrival time), jitter, packet loss, throughput, and MOS. Our results demonstrate that VoIP quality due to using IPsec with IPv6, 6to4, and NAT in VPNs during the IPv4/IPv6 transition is not significantly different from using IPsec with IPv4, and that there is a minimal impact on voice quality as long as the network capacity is not exceeded.
Starting Page	235
Ending Page	242
File Size	251995
Page Count	8
File Format	PDF
ISBN	9789531841306
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-08
Publisher Place	Croatia
Access Restriction	Subscribed
Rights Holder	University of Zagreb
Subject Keyword	Virtual private networks Encapsulation Telecommunication traffic Network address translation Local area networks Electrostatic precipitators Authentication Loss measurement Time measurement Performance loss
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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