Iris Measurements

This host is sending packets generated by Iris, an internet topology measurement platform operated by the Dioptra group at the LIP6 computer science laboratory of Sorbonne University in Paris, France. These are ping and traceroute style probe packets using either the UDP, ICMP, or TCP protocol. The results are used to provide data to academic researchers, government agencies, and civil society, to help advance a better understanding of the structure and performance of the internet.

We have taken care to design Iris's probing so as to avoid overloading routers and end-hosts, and so as to avoid needlessly setting off alarms that network operators put in place to protect their systems from hostile scanning and attacks. If you are concerned that our packets might be causing problems, please email us. We undertake to remediate any issues and we honor requests to add IP netblocks to our blocklist.