I have remote sites here and there and sometimes, there are problems along the way so I need to poke around and see what's going on. Is it a provider along the way? Is it is something along the network before or after the internet, etc. You get the point.
Problem is that more and more companies are starting to disable icmp and related tcp/udp ports so running say traceroute and others even on tcp/udp ports don't make any difference.
When traceroute, ping and other similar tools don't give you insight into a network because some of the providers along the path, what other tools, tricks, methods are there to test connectivity and timing from point A to B over the internet?
I've been searching for over a week, trying out countless tools such as tcptraceroute, mtr, alf and others but still keep getting the dreaded * * * responses.
Figured it's time to reach out and find a pro or two.