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UDP/DOmain Controller question

By LEGJ1 ·
Atleast once a day my DC is sending 6 64 byte UPD packets (polling?) to every IP address (used and not used IP's) on the network. Anyone have any idea why this is happening? Generating a lot of traffic. Any ideas appreciated. Thank you!

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UDP/DOmain Controller question

by Ann777 In reply to UDP/DOmain Controller que ...

Do you have extra protocols installed that you are not using? Extra services? Make sure NetBEUI is not enabled.

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UDP/DOmain Controller question

by LEGJ1 In reply to UDP/DOmain Controller que ...

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UDP/DOmain Controller question

by acattr In reply to UDP/DOmain Controller que ...

What you are seeing is netbios broadcast packets. The DC is using it to update the Master Browser list. 2000 and XP machines use DNS for browsing, so if your not using 9x, ME, or NT you can disable this. In your TCP/IP properties, wins tab, check"disable NetBios over TCP/IP."

Also, Assuming you have 1000 computers on the network. 6 broadcast X 64 bytes X 1000 computers = 384,000 bytes = 384Kbytes = 0.386 Megabytes. I wouldn't call that alot of traffic.

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UDP/DOmain Controller question

by acattr In reply to UDP/DOmain Controller que ...

Mind answer 1 refers to the protocol NetBEUI which also causes browgin, I am talking about NetBios which is used by 2000 to communicate with legacy operating systems using SMB.

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UDP/DOmain Controller question

by LEGJ1 In reply to UDP/DOmain Controller que ...

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by LEGJ1 In reply to UDP/DOmain Controller que ...

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