Site on IPv4 only logs IPv6 visitors

@Michiel_Broek wrote:

I'm running a Piwik server version 2.16.1 This server is accessible via IPv4 and IPv6.
One of the servers that I monitor runs with an ISP that only has IPv4. That server logs IPv6 visitors which is impossible.
When I inspect the logs I see entries coming from a dual stack client connect via IPv4 to the IPv4 only website and connects at the same time to the piwik server using IPv6. Here are parts of the logfiles:

195.241.xx.xx - - [18/Apr/2016:13:10:21 +0200] "GET / HTTP/1.1" 200 8325 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0"

2001:xxxx:xxxx:7e97::5 - - [18/Apr/2016:13:10:21 +0200] "GET /piwik/piwik.php?action_name=Voices&idsite=14&rec=1&r=576524&h=13&m=10&s=21&url=http%3A%2F%2Fwww.zanggroepvoices.nl%2F&id=1045303909a7763c&idts=1438343396&idvc=44&idn=0&refts=0&viewts=1460977822&cs=windows-1252&send_image=0&pdf=0&qt=0&realp=0&wma=0&dir=0&fla=1&java=1&gears=0&ag=0&cookie=1&res=1920x1080&gt_ms=37 HTTP/1.1" 204 0 "http://www.zanggroepvoices.nl/" "Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0" "-" "-" "0.119"

I think that in the message to the piwik server a parameters should be sent that tells the real origin of the site visit. Now it uses the origin address used on the piwik server.

If you need more information, let me know.

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