You can enable DE to log the IP address associated with the server in the tracelog by doing any of the following;
1. Use the setlogthreshold command to set the severity threshold of the following logger identifiers to ALL;
agent:afm
communications
dm:communications
2. Create and apply a logging profile with the above logger identifiers set to ALL
3. Apply the EVERYTHING logging profile to the server
Make sure you have the disk space on the server to log these messages, and set it back to the default later.