traceroute-like tool for UDP or TCP packets

["Kent James" <kent1 () caspia com>]

One of the local ISPs is having trouble getting DNS information from
Easydns. I suspect they have a misconfigured firewall or other security
block in their system. I can ping and traceroute the DNS servers but get no
response from UDP or TCP packets.

Is there a tool that works like traceroute, only shows the route for TCP or
UDP packets instead of the ICMP packets that traceroute uses?

+----------------+
  Kent James, Ph.D, MCSE
  Computer network support in Baku, Azerbaijan
+----------------+


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