Teredo Server Detection

info Nessus Plugin ID 23972

Synopsis

A Teredo server is listening on the remote host.

Description

The remote host is running a Teredo server. Teredo is a protocol for tunneling IPv6 over UDP, and is used to give nodes the ability to obtain IPv6 connectivity behind IPv4 network address translation (NAT) devices. A Teredo server is a node that is connected to both IPv4 and IPv6 networks.

Solution

Limit incoming traffic to this port if desired. When full IPv6 connectivity is available, the Teredo server should be disabled.

See Also

http://www.ietf.org/rfc/rfc4380.txt

https://en.wikipedia.org/wiki/Teredo_tunneling

http://www.nessus.org/u?5b3b43f5

Plugin Details

Severity: Info

ID: 23972

File Name: teredo_server_detect.nasl

Version: 1.16

Type: remote

Published: 1/4/2007

Updated: 11/22/2019

Asset Inventory: true

Risk Information

Risk Factor: Info