As the title says,could someone please explain to me what is this and why it appears only with Panda installed?It's a warning from TuneUp Utilities 2013...so,it's something wrong with TuneUp,with my system or with Panda Cloud? Thank you guys.
From what I just read is.. "In computer networking, Teredo is a transition technology that gives full IPv6 connectivity for IPv6-capable hosts which are on the IPv4 Internet" http://en.wikipedia.org/wiki/Teredo_tunneling Seems related to the NIC"
Thank you Infected and thank you Wikipedia...I am safe or not?And most important,why is Panda related?
Teredo tunneling is definitely a security risk. See my extensive posting on it here; https://www.wilderssecurity.com/thre...360-being-retired.368362/page-15#post-2419051
You can turn off IPv6 tunneling by doing this: http://support.microsoft.com/kb/929852 . Or do it manually for one or all or the IPv6 tunnels by using netsh: http://sourcedaddy.com/windows-7/enabling-or-disabling-ipv6.html . I have them all disabled on my WIN 7 PC. To use Teredo IPv6 tunneling effectively you need to establish a connection with one of the worldwide Teredo servers and the process is quite involved. BTW - I keep IPv6 enabled on my PC but keep the tunnels disabled.
I block IPv6 at the router, it's disabled on machines, tunnel services killed, and tunnels manually disabled via CLI. I am IPv6 certified transition engineer, and I won't touch it for a variety of reasons. Everyone else can, and I help in transitions, but personally? Forget it. I value my NAT anonymity (RTC not withstanding).
Tunnel still runs if you disable it in adapter settings. Adapter is IPv6 Core. Tunneling is IPv6 tunneled through a IPv4 facade. You'll still get tunneled if you don't take the proper precautions.
This is correct. Teredo tunnel actual connects via IPv4 UDP. Again, this is all noted in the sourcedaddy link I posted above. Since it appears this is not being referenced, I will copy part of it. You cannot uninstall IPv6 in Windows 7, but you can disable IPv6 on a per-adapter basis. To do this, follow these steps: In Control Panel, open Network And Sharing Center. 1. Click Manage Network Connections and then double-click the connection you want to configure. 2. Clear the check box labeled Internet Protocol Version 6 (TCP/IPv6), and then click OK. Note that if you disable IPv6 on all your network connections using the user interface method described in the preceding steps, IPv6 will still remain enabled on all tunnel interfaces and on the loopback interface. Either use nbstat to disable each interface: netsh interface teredo set state disabled netsh interface ipv6 6to4 set state state=disabled undoonstop=disabled netsh interface ipv6 isatap set state state=disabled Or, do the below registry mod: As an alternative to using the user interface to disable IPv6 on a per-adapter basis, you can selectively disable certain features of IPv6 by creating and configuring the following DWORD registry value: HKLM\SYSTEM\CurrentControlSet\Services\tcpip6\Parameters\DisabledComponents Table-7 describes the flag values that control each IPv6 feature. By combining these flag values together into a bitmask, you can disable more than one feature at once. (By default, DisabledComponents has the value 0.) Table-7 Bitmask Values for Disabling IPv6 Features in Windows 7 Flag Low-Order Bit Result of Setting this Bit to a Value of 1 0 Disables all IPv6 tunnel interfaces, including ISATAP, 6to4, and Teredo tunnels 1 Disables all 6to4-based interfaces 2 Disables all ISATAP-based interfaces 3 Disables all Teredo-based interfaces 4 Disables IPv6 over all non-tunnel interfaces, including LAN and PPP interfaces 5 Modifies the default prefix policy table* to prefer IPv4 over IPv6 when attempting connections
Thank you again to all of you guys for your detailed replies.I think i will change Panda with my good ol' Avast back...
As I said in my first post,this warning appears ONLY when it's Panda installed on my laptop.It NEVER occurs with or without any other AV,and believe me,i tried all of them.
What is the main reason of we should not enable the Teredo IPv6 tunnel? Does it have any important security risk? and what happen if I disable the tunnel as well as IPv6 to 4
See these links: http://www.symantec.com/connect/blo...work-security-and-other-security-implications http://blog.trendmicro.com/trendlab...ls-good-for-adoption-not-so-hot-for-security/ http://www.techrepublic.com/blog/it-security/ipv6-oops-its-on-by-default/ http://www.admin-magazine.com/Articles/Neglected-IPv6-Features - this is a detailed technical article on IPv6. Disabling the tunnels have zero impact on your PC. They were designed as "transitioning" technology to allow IPv6 activity over existing IPv4 networks. If you have a IPv6 router, you don't need them anyway. Also it has been my observation that when the tunnels are enabled, Windows will use them to transmit data to Microsoft such as Application Experience uploads and the like. I like my IP connections with anyone to be always visible and traceable. Finally, very few firewalls other than the Win 7/8 firewall properly handle tunnel traffic properly and have specific rules to do so.
Firewalls not handling IPv6 is a major issue, often they put them in allow/allow, which itself is a bad move. An interesting thing happened when some sites started to accept IPv6 connections way back when.. They were planning on seeing 'nothing' for a long time. Then suddenly they were flooded, and realized it was because of the tunneling going on in Windows, millions of hits! I consider IPv6 tunneling a backdoor on my systems, and disable it.. itman is correct in that Microsoft Customer Experience has been known to 'tunnel', which is another reason I turn it off.
You can click on post number at the bottom and you will get permalink: https://www.wilderssecurity.com/thr...face-and-panda-antivirus.374058/#post-2467468
