White Papers

The Teredo Protocol: Tunneling Past Network Security and Other Security Implications

Category: Security, Networking and Communications

Overview Teredo is a platform-independent protocol developed by Microsoft, which is enabled by default in Windows Vista. Teredo provides a way for nodes located behind an IPv4 NAT to connect to IPv6 nodes on the Internet. However, by tunneling IPv6 traffic over IPv4 UDP through the NAT and directly to the end node, Teredo raises some security concerns. Primary concerns include bypassing security controls, reducing defense in depth, and allowing unsolicited traffic. This paper examines the security implications of Teredo.

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Publisher: Symantec
File Format: PDF
Date Published: Dec 16, 2006
Format: White Papers
Topics: Network Security, TCP - IP, Security Management

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