Avoiding
careful choice of host => beacon sites
working with remote sites & ISPs
using TCP echo or UDP echo (security), but crackers will find them and often already blocked
new protocol designed for measurement (IPMP)
- but that is what ICMP was designed for
- IPMP would be designed to have little load on routers, to be treated as normal packets, to not be a tool for cracker scanning etc. BUT does not exist, let alone implemented, let alone deployed
special purpose measurement machines & protocols