Telnet into a udp port

Jun 09, 2005 2 Replies
Telnet into a udp port open original image

Hi, is this possible? have a problem with a user connecting tcp over a network to a NATted IP address.. but saying his udp packets are being dropped.. problem is i can't see any UDP packets.. only TCP.



Is it possible to test a udp port connection from the CLI say in unix/dos? ie. telnet 111.111.111.111 25 ?



thanks in advance.



In article , ants wrote: :is this possible?

Not really.

:have a problem with a user connecting tcp over a network to a NATted IP :address.. but saying his udp packets are being dropped.. problem is i :can't see any UDP packets.. only TCP.

:Is it possible to test a udp port connection from the CLI say in :unix/dos? ie. telnet 111.111.111.111 25 ?

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You might be able to figure something out with unix traceroute which uses udp by default.

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pathping may also be able to use UDP. Can definately use TCP. Not cli but Windows GUI.

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