Traversing Symmetric NAT with Predictable Port Allocation

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Authors

KLINEC Dušan MATYÁŠ Václav

Year of publication 2014
Type Article in Proceedings
Conference SIN '14 Proceedings of the 7th International Conference on Security of Information and Networks
MU Faculty or unit

Faculty of Informatics

Citation
Web ACM Digital Library
Doi http://dx.doi.org/10.1145/2659651.2659698
Field Informatics
Keywords NAT; traversal; tunneling; prediction
Description Network Address Translators often cause trouble for VoIP and other P2P services since central servers are needed for communication. The presence of such potentially malicious hosts in a communication path is not desired, mainly due to security consequences, poor link quality and increased cost. Several solutions exist for traversing NAT, but a symmetric one is still problematic. We propose algorithms using a single source port for symmetric NAT traversal. Each with different properties and applicability.
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