RFC6056 has been released and is titled Recommendations for Transport-Protocol Port Randomization.
2d899269f777944a49b7bcd5373a53284b4b6425a5e957bee90959e976ad26bbThis document describes a simple and efficient method for random selection of a client port number, such that the possibility of an attacker guessing the exact value is reduced. While this is not a replacement for cryptographic methods, the described port number randomization algorithms provide improved security/obfuscation with very little effort and without any key management overhead. The mechanisms described in this document are a local modification that may be incrementally deployed, and that does not violate the specifications of any of the transport protocols that may benefit from it, such as TCP, UDP, SCTP, DCCP, and RTP.
61b14f84224795032551d1a5e2ebfe45a4f86868563581fff491e9408e636381This document describes a simple and efficient method for random selection of a client port number, such that the possibility of an attacker guessing the exact value is reduced. While this is not a replacement for cryptographic methods, the described port number randomization algorithms provide improved security/obfuscation with very little effort and without any key management overhead. The mechanisms described in this document are a local modification that may be incrementally deployed, and that does not violate the specifications of any of the transport protocols that may benefit from it, such as TCP, UDP, SCTP, DCCP, and RTP.
1ce58606d3eddff9223fe3a488f8c0cc0f6238e521811ffc418b4dd84491b12bThis document describes a simple and efficient method for random selection of a client port number, such that the possibility of an attacker guessing the exact value is reduced. While this is not a replacement for cryptographic methods, the described port number randomization algorithms provide improved security/obfuscation with very little effort and without any key management overhead. The mechanisms described in this document are a local modification that may be incrementally deployed, and that does not violate the specifications of any of the transport protocols that may benefit from it, such as TCP, UDP, SCTP, DCCP, and RTP.
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