Secure network mobility (SeNEMO) for real-time applications

Tuan Che Chen*, Jyh-Cheng Chen, Zong Hua Liu

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations


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.

Original languageEnglish
Article number5645636
Pages (from-to)1113-1130
Number of pages18
JournalIEEE Transactions on Mobile Computing
Issue number8
StatePublished - 1 Aug 2011


  • Network mobility (NEMO)
  • mobile virtual private network (VPN)
  • performance analysis
  • security
  • session initiation protocol (SIP)

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