Can I keep track of people who anonymously FTP?

[John F. Whitehead]

When someone anonymously FTPs to our system, they type "anonymous" for
their username and their name & address for their password.

Is it possible to keep track of those who log in as anonymous?  To send
all the addresses entered in the password field to a file as the syslogd
does with the username?

If this can be done, please help me out.  If it cannot, then what is the
point of asking for the user's host name / address in the password field?

    John Whitehead                     Internet:  jfw at neuro.duke.edu
    Department of Neurobiology                    jfw at well.sf.ca.us
    Duke University Medical Center     Bitnet:    white002 at dukemc           
    Durham, North Carolina