Re: How do I find out what hop is not forwarding traffic on a specific port?

[Jon Kibler <Jon.Kibler () aset com>]

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Phunkodelic wrote:
> Looking for a way to find out who or what device is blocking traffic
> on a specific port.  Sort of like a trace route tool where you could
> designate the port to test with (UDP/TCP).  I realize that UDP may be
> hard to do since it is a connectionsless protocol.

What you want is hping:
        http://www.hping.org/

Use something like:
        hping --traceroute [--udp] -p DESTPORT DESTIP


I think Fyodor's new nping utility has similar capabilities, too.

Hope this helps!

Jon K
- --
Jon R. Kibler
Chief Technical Officer
Advanced Systems Engineering Technology, Inc.
Charleston, SC  USA
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