Feature Discovery: A Generic Extension Mechanism for SOCKS Version 5

Document Type Expired Internet-Draft (aft WG)
Author Marc VanHeyningen 
Last updated 1997-07-23
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies a command extension to the SOCKS Version 5 protocol which enables compliant clients to discover features supported by the server. After discovering the support of such features, the client may use them in subsequent connections to that server. This mechanism does not provide for negotiation; it is a way of instructing the client what features the server supports, not establishing which features the client supports or wishes to use.


Marc VanHeyningen (marcvh@aventail.com)

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