My recollection is that NT uses the following:
UDP Netbios-DGM (datagram) port
138
UDP Netbios-NS (name service) port
137
UDP Netbios-ssn (Netbios Session
Service) port 139
There are TCP ports of the same type but NT uses UDP....
If you have a sniffer it should confirm these...mine did....
Chris Boyd
Network Support
Alex Lee, Inc.
120 4th Street SW
Hickory, NC 28601
(828) 323-4103
http://www.alexlee.com
----- Original Message -----
From: <AABAN34@xxxxxxx>
To: <Jackie8359@xxxxxxx>; <jorourke@xxxxxxxxxxx>; <cisco@xxxxxxxxxxxxxx>
Cc: <vijayr@xxxxxxxxxxxxxx>
Sent: Monday, May 01, 2000 10:32 AM
Subject: Re: Access-list question What port to use to?
> In a message dated 5/1/00 10:05:24 AM Eastern Daylight Time, AABAN34
writes:
>
> << I thought NetBIOS broadcasts were TCP 137, 138 and 139 . I ran some
tests
> on this awhile ago and found that NT uses TCP ports 137,138 and 139????
not
> UDP???? >>
>
> It is both TCP and UDP 137, 138 and 139 NetBIOS is.
>
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