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i made an application that stream an video from a live source to a particular ip address,but when i open the network stream through vlc it says unidentified format.My wireshark shows the following report:-

446 3.534718 IPv4    1314    Fragmented IP protocol (proto=UDP 0x11, off=0, ID=164f) [Reassembled in #447]
447 3.534773 UDP 90  Source port: 18886  Destination port: 18886
448 3.534785 ICMP    190 Destination unreachable (Port unreachable)
449 3.534804 ICMP    190 Destination unreachable (Port unreachable)

This program is running on some machines and not running on my machine what might be the cause of the problem?

asked 09 May '12, 05:02

tarun's gravatar image

accept rate: 0%

edited 09 May '12, 05:16

grahamb's gravatar image

grahamb ♦

"Destination unreachachble (Port unreachable)" means, that there is no service listening on UDP port (18886 ??) on the machine that reports the problem ( Pleaase check that with "netstat -na" on If it's a dynamic port, then something is wrong with your streaming config.


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answered 09 May '12, 05:45

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
accept rate: 15%

hey Kurt Thanks for the reply,but i had an query that on machine(,i ran vlc player to open network stream,so vlc player must be listening that....

(09 May '12, 05:59) tarun

and its too a static port..

(09 May '12, 06:14) tarun

did you check with 'netstat -na' ?

(09 May '12, 07:06) Kurt Knochner ♦

ya i checked with netstat -na and here is mine output:- (C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Administrator>netstat -na

Active Connections

  Proto  Local Address          Foreign Address        State
  TCP                LISTENING
  TCP                LISTENING
  TCP               LISTENING
  TCP               LISTENING
  TCP              LISTENING
  TCP         TIME_WAIT
  TCP         TIME_WAIT
  TCP              LISTENING
  TCP              LISTENING
  TCP              LISTENING
  TCP              LISTENING
  UDP            *:*
  UDP          *:*
  UDP        *:*
  UDP        *:*
  UDP        *:*

C:\Documents and Settings\Administrator>
(09 May '12, 07:32) tarun

I don't see udp port 18886, so there is no process 'accepting data' on that port. I really think this is a VLC config problem.

(09 May '12, 13:50) Kurt Knochner ♦
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question asked: 09 May '12, 05:02

question was seen: 6,238 times

last updated: 09 May '12, 13:50

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