Can Teredo IPv6 screw things up?
Dec 7, 2010 4:56 AM
I'm a longtime Azureus/Vuze user without any significant problems until recently. I have 10MBit broadband cable and usually achieve good download speeds (up to 1 Mbit/sec). A couple of months ago I experienced a decline in my average download speed plus intermittant loss of connection. This would typically be a climb to a reasonable speed followed by a sudden drop to zero followed by a slow climb back up again. This process would repeat for the duration of the download. I also lost the 'green smiley' and began to fail the Port test. I access the internet via a Linksys Etherfast cable router.
This was puzzling because I had not changed any settings. Initially I thought it may be a recent Vuze update that had screwed things up.
To cut the story short, I tried all the usuall/obvious solutions but without success. On logging onto my router I found port forwarding for Teredo (Tunneling entries?). This puzzled me because I had not put them there. I know very little about Toredo but after some invesigation understand it is is to enable IPv6 protocol? and could be as a result of a Windows 7 update?
Anyway, I decided this was all a bit weird so I did a factory reset on the router and re-entered the vuze port forward details. Guess what everything is fine again. Green smiley is back and downloads are back to where they were.
Does anyone know what is happening here? Could Teredo be responsible? How may have it changed my router settings?
Re: Can Toredo IPv6 screw things up?
Dec 7, 2010 5:42 AM
in response to: peacocj
Teredo is a special tunnel protocol related to IPv6, but it is not that widely used. Sounds strange that your router should have settings related to that, unless you have configured theme there by yourself.
(I am using 6in4 tunnel myself for IPv6, where my router acts as a tunnel-endpoint towards SixXS, but I have seen no trace of Teredo in the router settings).