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SOCKS Protocol Version 6

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Vladimir Olteanu , Dragos Niculescu
Last updated 2017-12-30 (Latest revision 2017-06-28)
Replaced by draft-olteanu-intarea-socks-6
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-olteanu-intarea-socks-6
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The SOCKS protocol is used primarily to proxy TCP connections to arbitrary destinations via the use of a proxy server. Under the latest version of the protocol (version 5), it takes 2 RTTs (or 3, if authentication is used) before data can flow between the client and the server. This memo proposes SOCKS version 6, which reduces the number of RTTs used, takes full advantage of TCP Fast Open, and adds support for 0-RTT authentication.


Vladimir Olteanu
Dragos Niculescu

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)