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Annoying NetBios!

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6 replies

by ebla

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How could I send a message to an IP, which I have banned by means of my firewall because it is constantly attempting unsolicited access to my UDP 137 Port and S. Ports 1035 ? 1039 (NetBios name)? It is annoying! I have Windows 98 well updated, CableModem Broadband (LAN) and McAfee Firewall and VirusScan Online (Security Center). Moreover, is there some way to block NetBios without losing my Internet ability and features of LAN?s? Thanks from Chile, the Finis Terrae!

6 replies

by ebla

In an TechRepublic article related to my question I read: Block ports used for Windows shares at your network perimeter. Block the NetBIOS ports commonly used by Windows shares at your network perimeter using either your external router or perimeterfirewall. The ports that should be blocked are 137-139 TCP and 137-139 UDP, and 445 TCP and 445 UDP. HOW COULD I MATERIALIZE THIS ADVICE?

by cg it

You can block ports either in your DSL cable moden setup utility or via your firewall.

by bobho

There is a pretty good article on network bindings written by Steve Gibson that explains how to unbind netbios from your internet connections. He gets into quite a bit of detail but it explains quite thouroughly how to safeguard your setup while retaining local network capabilities.

Here's a link:

http://grc.com/su-bondage.htm

Enjoy,

DrBob:>)

by ebla

Thank you very much for the link, but my main interest is set starting my question: How could I send a message to an IP teasing me? Obviously I have configured my firewall not to allow any intrusion, but anyway I would like to send a dart to such teaser in my vicinity. Ebla.

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