Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22738
Title: Transport layer proxy for stateful UDP packet filtering
Authors: Chang, R 
Fung, K
Keywords: Internet
Authorisation
Client-server systems
Packet switching
Protocols
Telecommunication security
Issue Date: 2002
Publisher: IEEE
Source: ISCC 2002 : Seventh International Symposium on Computers and Communications : July 1-4, 2002, Ramada Hotel, Taormina-Giardini Naxos, Sicily, Italy : proceedings, p. 595-600 How to cite?
Abstract: Firewall support for UDP traffic today is still insecure and inadequate. We propose in this paper a transport layer proxy (TLP) to provide a secure UDP firewall traversal service on the transport layer (the TLP supports TCP as well). For each UDP association with endpoints separated by a TLP server, the TLP server performs user-level or host-level authentication, packet filtering, packet relaying, optional network address translation, session logging, timing-out of idle association, and other security-related functions. The core of the TLP is a two-step TLP binding procedure that makes a UDP association stateful between a TLP client and a TLP server. This binding procedure supports Active UDP Open, Passive UDP Open, and Source-Specific UDP Open, which a local program may perform on a UDP socket.
URI: http://hdl.handle.net/10397/22738
ISBN: 0-7695-1671-8
ISSN: 1530-1346
DOI: 10.1109/ISCC.2002.1021735
Appears in Collections:Conference Paper

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