Another thing, have you tried contacting PlanetLab themselves? (the ips you've posted so far have come from them)
Researchers using the PlanetLab network are bound by an Acceptable Use Policy <http://www.planet-lab.org/aup/> which forbids malicious or disruptive behavior. Additionally, all PlanetLab nodes are secured and actively managed <http://www.planet-lab.org/node/229> by the PlanetLab Operations team. If you are unable to determine the source of the traffic, please contact PlanetLab Support (supp...@planet-lab.org). Feel free to direct any additional concerns or questions about PlanetLab to this address. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.