If you still want to use legacy binaries but also need IPv6 support this should help:
In order to support IPv6->Country code easily and without unnecessary files based on the integration above:
Grab a copy of the latest legacy IPv6 data (I'm assuming you already have IPv4 binary):
wget http://geolite.maxmind.com/download/geoip/database/GeoIPv6.dat.gz
Decompress and move it to a dir accessible to your web server:
gunzip GeoIPv6.dat
mv GeoIPv6.dat /etc/usr/share/GeoIP/GeoIPv6.dat
Grab a copy of geoip.inc from the Maxmind git dir (https://github.com/maxmind/geoip-api-php/blob/master/src/geoip.inc) and save it somewhere you can access wherever you'll need to run geoip.
If you have php5-geoip installed as I did, remove it with sudo apt-get remove php5-geoip; purge as necessary.
With the above done you can now test incoming IP address for v4 or v6 and get appropriate results.
Example:
<?php
include_once('geoip.inc');
//set an IPv6 address for testing
$ip='2601:8:be00:cf20:ca60:ff:fe09:35b5';
/*
test if $ip is v4 or v6 and assign appropriate .dat file in $gi
run appropriate function geoip_country_code_by_addr() vs geoip_country_code_by_addr_v6()
*/
if((strpos($ip, ":") === false)) {
//ipv4
$gi = geoip_open("/usr/share/GeoIP/GeoIP1.dat",GEOIP_STANDARD);
$country = geoip_country_code_by_addr($gi, $ip);
}
else {
//ipv6
$gi = geoip_open("/usr/share/GeoIP/GeoIPv6.dat",GEOIP_STANDARD);
$country = geoip_country_code_by_addr_v6($gi, $ip);
}
echo $ip . "<br>" . $country;
This is specifically for Country, but can easily be replicated for City data.