Has anyone seen this issue before? An IIS5.0 Log entry contains 2 IP
addresses, separated by a comma.

I couldn't find any documentation on-line about this issue. Any
thoughts?

Example:
date time c-ip cs-username s-computername s-ip s-port cs-method
cs-uri-stem cs-uri-query sc-status sc-bytes time-taken

2006-02-22 08:26:29 212.162.130.82,212.138.47.14 - WEB01 38.47.14 80
GET /category/listing.aspx catid=1 200 31917 0
Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+SV1;+.NET+CLR+1.1.4322)
UTRAK=ORGSRC=uwb93991&ORGREF=no%5Furl&LSTREF=no%5Furl&LSTDATE=2%2F21%2F2006&LSTTIME=22%3A24&L