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8.8

udp monitoring

Asked by ausadmin in Voice Over IP

Tags: udp, monitoring, firewall

Hi All

Posted here as I assumed a lot of VoIP applications would be udp based.

Got a SMB client who uses a realtime app - they're in the transport industry.  This app goes haywire periodically and costs them a lot of $.  It has two parts a gateway PC that talks to their trucks and a dispatch pc that has a link to one of their biggest clients.

Gateway pc goes to one dsl line snapgear pro firewall/dlink 500 dls modem/router
Dispatch pc goes to another dls line linksys WRT54G (they're using that as a firewall only) and cisco 801 modem/router

Now unfortunately the two isps are related so an issue at one can take out both links.  I'm moving one of the lines over to another ISP as fast as I can but its tricky coz its a 24/7 operation.

I was after at minimum a ping utility for udp.  I've seen one on the web but can't find it.

The vendor is pointing the finger at the linksys saying its not dealing with the udp traffic.  His explanation is that a firewall opens a port for udp traffic in this case 4240 and if traffic is going back and forth keeps it open.  Some firewalls interpret this as an attack and keep closing the port.

So ideally I'm looking for something that will allow me to keep making logged udp connections through those lines.

The other thing I guess is just monitoring the status of the adsl connection.  I could just run a ping -t to a logfile pointed at google.  But I was hoping for something a little more sophisticated.


Much TIA all.
[+][-]05/02/06 01:51 AM, ID: 16584139Accepted Solution

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Zone: Voice Over IP
Tags: udp, monitoring, firewall
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Solution Provided By: grblades
Participating Experts: 2
Solution Grade: B
 
[+][-]05/03/06 02:26 PM, ID: 16600573Assisted Solution

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[+][-]05/08/06 08:54 PM, ID: 16636366Author Comment

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[+][-]05/09/06 12:42 AM, ID: 16637250Expert Comment

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[+][-]05/19/06 05:00 PM, ID: 16722677Author Comment

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