yeah... i write 127.0.0.1
<?xml version="1.0" encoding="UTF-8"?>
<gameserver address="127.0.0.1"> <!-- your external ip here, is the main gameserver ip address, used with subnet 0.0.0.0 -->
<define subnet="127.0.0.0/8" address="127.0.0.1" /> <!-- localhost loopback -->
<define subnet="10.0.0.0/8" address="10.0.0.0" /> <!-- if you have other network interfaces you can use this syntax -->
<define subnet="172.16.0.0/19" address="172.16.0.0" /> <!-- if you have other network interfaces you can use this syntax -->
<define subnet="192.168.0.0/16" address="192.168.0.0" /> <!-- if you have other network interfaces you can use this syntax -->
</gameserver>