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Issue No. 08 - August (2011 vol. 10)
ISSN: 1536-1233
pp: 1113-1130
Tuan-Che Chen , National Tsing Hua University, Hsinchu
Jyh-Cheng Chen , National Chiao Tung University, Hsinchu
Zong-Hua Liu , National Tsing Hua University, Hsinchu
The IETF NEtwork MObility (NEMO) working group has considered how to enable an entire network to move from one location to another. Mobile Virtual Private Network (VPN) has been developed to secure mobile user's communication between untrusted external networks and the protected private internal network. However, the IETF's mobile VPN does not address how to support NEMO. In addition, it is not suitable for real-time applications. In this paper, we propose architecture and protocols to support VPN in NEMO, which is called Secure NEMO (SeNEMO). The proposed SeNEMO, based on Session Initiation Protocol (SIP), is specifically designed for real-time applications over VPN. It allows an entire network to move and still maintains session continuity. In addition to analyzing the security vulnerabilities, we also propose analytical models to evaluate the performance of the proposed SeNEMO. The analysis is validated by extensive simulations. The results show that the proposed SeNEMO can reduce signaling cost significantly.
Network mobility (NEMO), mobile virtual private network (VPN), security, session initiation protocol (SIP), performance analysis.

Z. Liu, T. Chen and J. Chen, "Secure Network Mobility (SeNEMO) for Real-Time Applications," in IEEE Transactions on Mobile Computing, vol. 10, no. , pp. 1113-1130, 2010.
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