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TCP_Prob_NetBIOS problems on Firewall

by nasirmunshi / September 30, 2005 4:13 PM PDT

Brief:
I am running small network as following
1) Internet server configured on Windows 2000 Professional with "Black ICE Firewall"

2) Others computers are running on different flavours of Windows like XP Prof / Win 2000 Prof / Win 98 / win ME.

Problem:
Everything is fine "Black ICE" is really good, if any un-requested IP is trying to connect your pc, its indicate on priority level with event. There you can choose given option like "Ignore this Event" and "Block this IP". After blocked you are free from this trouble.

From my network, one pc is requesting abuse, well normally any porn or abuse site is not running/opening there.

But firewall shows that pc is requesting and event is "TCP_Prob_NetBios" indicating highly risk with "RED Colour".

If I select "ignor this event" or block this "mac" "IP" user can not access to the internet.

Tracing:
I tried out many times to removed spam/trojan/viruses from that PC by "Ad-Aware" "Anti-Vrius". And done.

After this step PC access internet but for very little times and than problem start again.

Need Solution:
Kindly guide me what can i do for "TCP_Prob_NetBIO" accessing problem as smililarly one of more type of TCP problem is generating as same name like "TCP_Prob_PPTP".

"Your suggestion and guidenc are welcome"

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