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Client PC send multicast packets

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6 replies

by jayesh_nishane

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I have a seperate Network with around 60 PC's for real time application. 50 nos. PC are DOS based and others are Windows 2000 PC's. 3 of my Windows 2000 PC's started sending multicast packets continously due to which my Network bandwidth utilization shooted to more than 90%.
What may be the reason for my client PC sending multicast packets continously.

6 replies

by chris910

Time to run a virus scan on your 2000 systems. Be on the lookout for one of the blaster variants.

by voldar

Hmmm ... I don't see what can do that, but I would ask you what software have you lately installed on those three servers? To perform multicast, as far as I know, the IPs should be in another class.
Or, there may be a similar problem also, when you use non-private IPs and they are not "yours".

by omie

since you were able to identify the PC's that are sending packets it is easier to diagnose it ...
The first thing to do is to checked for spywares. You could download spybot and scan the PC to remove those spywares. The are also some appllications that you have to watch out specially those programs that are in the startup such as Anti-Virus updates, Weather Bug , Streaming screen savers and those people who are using PC as a radio to listen their favorite musics from the internet.

The last resort is to check and replace the network card for it might happen that it is about to go bad.

Good Luck

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