RE: UDP 137

  • From: "Rogers, Brian" <RogersB@xxxxxxxxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 5 Feb 2002 13:06:55 -0500

damn...I forgot about the services file.
 
I need to shutoff the browser for that puppy then..Im showing 500k dropped
packets in the past week alone.
 
 

Brian W. Rogers 
MCSE, MCT, MCP 
Client/Server Network Developer 
Tree of Life Corporation 
 <mailto:rogersb@xxxxxxxxxxxxxx> rogersb@xxxxxxxxxxxxxx 
office: (904)940-2152 
mobile: (904)806-7173 

-----Original Message-----
From: Brad Benz [mailto:bbenz@xxxxxxxxxxxxxxxxxxx] 
Sent: Tuesday, February 05, 2002 1:03 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: UDP 137


http://www.ISAserver.org


This is NetBIOS traffic. ISA is blocking Computer Browser service broadcasts
and name resolution requests from going outside, a VERY good thing.
 
BTW, %systemroot%/system32/drivers/etc/services is a nice place to check for
port descriptions for anything below 10000.
 
Brad Benz
MCSE, CCNA, CCDA, CIPT
inTouch Solutions
Voice/Data Integration Engineer
208.947.6786
bbenz@xxxxxxxxxxxxxxxxxxx <mailto:bbenz@xxxxxxxxxxxxxxxxxxx> 

-----Original Message-----
From: Rogers, Brian [mailto:RogersB@xxxxxxxxxxxxxx]
Sent: Tuesday, February 05, 2002 10:53 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] UDP 137


http://www.ISAserver.org



Anyone know what would be using this port? 

The system that's spitting out thousands of requests is a Lotus Notes SMTP
Mail Gateway.  It is configured as a published web server thru ISA...but ISA
is blocking all its attempts to connect to various systems using UDP 137.
Its certainly not mail...as all the servers functions are acting just fine.

Brian W. Rogers 
MCSE, MCT, MCP 
Client/Server Network Developer 
Tree of Life Corporation 
rogersb@xxxxxxxxxxxxxx 
office: (904)940-2152 
mobile: (904)806-7173 


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