To call or to be called behind NATs is sensitive in solving direct connection problem
| Venue: | IEEE Commun. Lett |
| Citations: | 1 - 1 self |
BibTeX
@ARTICLE{Ho_tocall,
author = {Cheng-yuan Ho and Chien-chao Tseng and Fu-yu Wang and Jui-tang Wang and Ying-dar Lin and Senior Member},
title = {To call or to be called behind NATs is sensitive in solving direct connection problem},
journal = {IEEE Commun. Lett},
year = {}
}
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Abstract
Abstract—In this article, we first depict the call-role sensitivity problem in Network Address Translation (NAT) traversal, and then propose an approach to resolving the problem. The problem is whether a direct connection can be found between two peers across NATs mainly depends on the NAT type at the caller’s side. We propose the extra-candidate connectivity check where both peers initiate a direct connectivity check to eliminate the effect of the call role. We have implemented the extra-candidate connectivity check and conducted experiments with 18 different NATs. Experimental results show that our approach can indeed resolve the call-role sensitivity problem, and maximize the direct connectivity rate (DCR) which is improved by 18.71 % from the original scheme. Index Terms—NAT, NAT traversal, direct connection. I.
Citations
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| 34 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols", RFC 5245 - Rosenberg - 2010 |
| 21 | RFC5766: Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN - Mahy, Matthews, et al. - 2010 |
| 4 | VoIP and NAT/Firewalls: Issues, Traversal Techniques, and a Real-World Solution - Khlifi, Gregoire, et al. - 2006 |
| 2 | Research on symmetric NAT traversal - Wang, Lu, et al. - 2006 |
| 1 | Symmetric NAT traversal using STUN - Takeda - 2003 |
