Report ID: NET-IPv6-002 Date: October 2023 (Updated for 2024 context) Author: Network Architecture Team Subject: Teredo Tunneling (IPv6 over UDP over IPv4) 1. Executive Summary The Teredo protocol is a network transition mechanism defined in RFC 4380 (updated by RFC 5991 and RFC 6346). Its primary purpose is to provide IPv6 connectivity to nodes located behind Network Address Translation (NAT) devices that do not support native IPv6 and cannot utilize other tunneling methods like 6to4 (which requires a public IPv4 address).

// Disable Teredo netsh interface teredo set state disabled

// Test IPv6 connectivity via Teredo ping -6 ipv6.google.com

// Set specific Teredo server netsh interface teredo set state server=teredo.remlab.net


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Teredo Protocol Portable Online

Report ID: NET-IPv6-002 Date: October 2023 (Updated for 2024 context) Author: Network Architecture Team Subject: Teredo Tunneling (IPv6 over UDP over IPv4) 1. Executive Summary The Teredo protocol is a network transition mechanism defined in RFC 4380 (updated by RFC 5991 and RFC 6346). Its primary purpose is to provide IPv6 connectivity to nodes located behind Network Address Translation (NAT) devices that do not support native IPv6 and cannot utilize other tunneling methods like 6to4 (which requires a public IPv4 address).

// Disable Teredo netsh interface teredo set state disabled teredo protocol

// Test IPv6 connectivity via Teredo ping -6 ipv6.google.com Report ID: NET-IPv6-002 Date: October 2023 (Updated for

// Set specific Teredo server netsh interface teredo set state server=teredo.remlab.net teredo protocol