On Thu, 25 Apr 2002, Nathan Lutchansky wrote:

> I've started a service that lets sites put a web bug on the webpages on 
> their IPv4-only site to figure out how many of their site visitors are 
> IPv6-enabled.
> 
> Basically, it takes two URLs as arguments, and redirects browsers to one 
> of the two URLs depending on whether IPv4 or IPv6 was used to contact my 
> server.  Here's an example:
> 
> http://ipv6wb.litech.org/wb?v4dest=www.yahoo.com&v6dest=www.kame.net

Cute (the png should be a bug, with two legs missing if ipv4 :-)

A simple way to do the animated vs non animated graphics a la kame turtle is 
something like

<!--#if expr="$REMOTE_ADDR != /:/" -->
<IMG src="static.gif" align="right" alt="">
<!--#else -->
<IMG src="animated.gif" align="right" alt="">
<!--#endif -->

which is what is used at www.ipv6.org.uk - v6 users get animation.  

Shouldn't be too tricky to modify awstats to parse v6 addresses in logs...

Tim

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