Elo,

wygląda na relewantne dla różnych naszych Internetów.

-------- Forwarded Message -------- Subject: RFC 7359 on Layer 3 Virtual Private Network (VPN) Tunnel Traffic Leakages in Dual-Stack Hosts/Networks Date: Tue, 26 Aug 2014 18:23:00 -0700 (PDT) From: rfc-editor@rfc-editor.org Reply-To: ietf@ietf.org To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org CC: drafts-update-ref@iana.org, rfc-editor@rfc-editor.org

A new Request for Comments is now available in online RFC libraries.

RFC 7359

Title: Layer 3 Virtual Private Network (VPN) Tunnel Traffic Leakages in Dual-Stack Hosts/Networks Author: F. Gont Status: Informational Stream: IETF Date: August 2014 Mailbox: fgont@si6networks.com Pages: 12 Characters: 26506 Updates/Obsoletes/SeeAlso: None

I-D Tag: draft-ietf-opsec-vpn-leakages-06.txt

URL: https://www.rfc-editor.org/rfc/rfc7359.txt

The subtle way in which the IPv6 and IPv4 protocols coexist in typical networks, together with the lack of proper IPv6 support in popular Virtual Private Network (VPN) tunnel products, may inadvertently result in VPN tunnel traffic leakages. That is, traffic meant to be transferred over an encrypted and integrity- protected VPN tunnel may leak out of such a tunnel and be sent in the clear on the local network towards the final destination. This document discusses some scenarios in which such VPN tunnel traffic leakages may occur as a result of employing IPv6-unaware VPN software. Additionally, this document offers possible mitigations for this issue.

This document is a product of the Operational Security Capabilities for IP Network Infrastructure Working Group of the IETF.

INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

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