Connect. Communicate. Collaborate. Securely.

Home » Kerio User Forums » Kerio Control » Lots of Outgoing UDP 137......

Messages: 23
Karma: 0
Send a private message to this user

I am using WRF5.1.10 under WinXP

Found that there is lots of Outgoing UDP 137(outgoing NETBIOS-NS) traffic logged in Connection Status. Shocked

The connections are from Local(LAN)IP to internet...
(incoming is blocked by default)

I've checked/scanned the host by NO virus/worm/trojan/backdoor is found.

Previously I've test with some firewall, included Winroute Pro and WRF5.x, but no such connection if found.

Would some expert here can help me to track down what's going on ?

  • Attachment: Image1.jpg
    (Size: 55.76KB, Downloaded 1022 times)

[Updated on: Thu, 29 April 2004 08:12]


Messages: 12
Karma: 0
Send a private message to this user
I have seen this before. I think that it is caused by windows, possibly netbios over tcp/ip. I have created a rule to drop all these packets, and not seen any performance hit at all.

I also think that it can be caused by Windows DNS server. I resolved all the addresses that the traffic was going to and they were all DNS servers.

Messages: 23
Karma: 0
Send a private message to this user

I have also checked with M$,
they said it is called from WinXP itself and it is normal.

Yes, I've created a rule to drop all of it.
But, somebody said it is abnormal...
So I have a doubt~~ Confused
Previous Topic: cant install 2 GUI with diff versions
Next Topic: i installed it and...
Goto Forum:

Kerio discussion forums are intended for open communication between forum members and may contain information and material posted by members which may be useful in learning about Kerio products. The discussion forums are not intended to provide technical support for any specific product. Any information implied or expressed in the discussion forums is that of the posting member. Kerio is in no way responsible for the information posted in the forums, or its accuracy. Kerio employees may participate in the discussions, but their postings do not represent an offical position of the company on any issues raised or discussed. Kerio reserves the right to monitor and maintain the forums to promote free and accurate exchange of information.

Current Time: Sun Nov 19 06:06:46 CET 2017

Total time taken to generate the page: 0.00451 seconds
.:: Contact :: Home ::.
Powered by: FUDforum 3.0.4.