How to install teredo tunnling 64 Bit#
Teredo Refresh Interval: This period states the time interval during which a Teredo IPv6 address is expected to remain valid in the absence of “refresh” traffic.The port is attached to one or more client IPv4 addresses. Teredo Service Port: Teredo service port determines the port from which a Teredo client sends Teredo packets.Teredo Relay: Teredo Relay is an IPv6 router which is used to forward all of the data on behalf of Teredo client it serves.It is a node which has IPv4 connectivity and can be used to provide IPv6 connectivity to Teredo clients. Teredo Server: Teredo Server is used for initial configuration of a Teredo tunnel.
Teredo Client: Teredo client is host which has IPv4 connectivity to Internet behind a NAT device and uses Teredo tunneling to use an IPv6 segment.Teredo defines various kinds of node types. In effect, a host implementing Teredo can gain IPv6 connectivity with no cooperation from the local network environment. Thus, IPv6-aware hosts behind NATs can be used as Teredo tunnel endpoints even when they don’t have a dedicated public IPv4 address. Teredo alleviates this problem by encapsulating IPv6 packets within UDP/IPv4 datagrams, which most NATs can forward properly. Many NAT devices currently deployed, however, cannot be upgraded to implement 6to4, for technical or economic reasons. However, many hosts are currently attached to the IPv4 Internet through one or several NAT devices, and in such a situation, the only available public IPv4 address is assigned to the NAT device, and the 6to4 tunnel endpoint needs to be implemented on the NAT device itself. Other Teredo nodes elsewhere called Teredo relays that have access to the IPv6 network then receive the packets, unencapsulate them, and route them on.Īlso, 6to4, the most common IPv6 over IPv4 tunneling protocol, requires the tunnel endpoint to have a public IPv4 address. These datagrams can be routed on the IPv4 Internet and through NAT devices. Teredo operates using a platform independent tunneling protocol designed to provide IPv6 connectivity by encapsulating IPv6 datagram packets within IPv4 User Datagram Protocol (UDP) packets.
How to install teredo tunnling full#
To overcome this shortcoming, the Teredo tunneling method was developed, which is used to give full IPv6 connectivity to IPv6 hosts even from behind a NAT device. There are various tunneling methods that have been developed before Teredo such as 6to4 for IPv6 (Internet Protocol version 6) packets as payload of IPv4, but with tunneling methods like 6to4 there is a limitation that it won’t work for the IPv6 devices sitting behind a NAT. Teredo has some security considerations which will be covered later in this document. There are various transition technologies already in place such as 6to4, but because of some shortcoming of the existing technologies, Teredo was developed. In this article we will learn about a transition technology in networking known as Teredo tunneling.