I only noticed this after a server move and hence fresh logs.
LM seems to be logging the IP behind a proxy (I assume this because the logged IP is non-routeable)
PHP 5.1.1 (Fast-CGI)
Apache Logs (trimmed slightly):
203.129.242.146 - - [02/Jan/2006:16:21:32 +1000] "POST /lm/signup.php HTTP/1.0"
203.129.242.146 - - [02/Jan/2006:16:22:02 +1000] "POST /lm/signup.php HTTP/1.0"
64.78.150.119 - - [02/Jan/2006:20:33:16 +1000] "POST /lm/signup.php HTTP/1.1"
The one user that went into unconfirmed:
Date Added: 2006-01-02 IP: 192.168.175.55
Not sure which of the above IPs is the actual one - though for this bug report probably not a problem.
Cheers,
Mathew