Mac Forum / Applications / Other MS Products / November 2006

On 11/21/06 5:09 PM, in article
1164146972.221271.170810@h48g2000cwc.googlegroups.com, "chadua@gmail.com"

Hi,

Are you running Little Snitch or any other Network utilities? If so, you
need to make sure you have the latest version.

If you can send me a TCPDump of you trying to sign-in that would be helpful.
Here is the information and where to send to. Thanks!

And good luck on getting a new adapter.

Getting a TCPDump log:

1) Open System Preferences and choose the Network item.  In the Show
selector choose Network Status; you should see a list of network interfaces
- the current network adapter in use will have a green dot to the left of
its name.  If you see more than one adapter with a green dot then you will
have to figure out which one is the adapter connected to the internet. The
description text for the network adapter should show its IP address (looks
something like 182.168.0.14) - jot this IP address down as you will need it
later.  If the description text does not contain the IP address then you
should double click on the network interface to open it up.  Once you are
examining this network interface choose the TCP/IP tab and jot down the IP
address.

2) Using the Network Utility (found at /Applications/Utilities/Network
Utility.app) select the Info tab and cycle through the Network Interfaces
selector looking for one whose IP address matches the IP address that you
found in step 1.  When you have found the matching network adaptor you will
need to note the Unix network interface name shown in the selector;
typically something like fw0, en0 or en1.

IMPORTANT NOTE:  Before proceeding any further make sure to close down any
applications that access the network.  These include Web browsers, Email
programs, Chat programs, etc.  This will help keep your private data private
as well as reduce the amount of noise (or non-applicable data) in the
network capture.

3) Open the terminal application found at
/Applications/Utilities/Terminal.app

4) Type the following line into the Terminal application making sure to
substitute the XXX with your active network adapter's name (found in step
2).  Once the proper network name is substituted for the XXX placeholder hit
the enter/return key to start the network capture.  This will start the
network capture and dump the output to a file named NetworkCapture.txt on
your desktop.

   sudo tcpdump ­i XXX ­s 10000 ­U -w ~/Desktop/networkcapt.txt ip proto
TCP
   
IMPORTANT NOTE:  Once you have entered the above line and hit enter you will
be asked for your password; your Mac OS X login password is required to run
the tcpdump tool (via the sudo command).  Your account must also be able to
administer the computer in order for the sudo command to work for you.

5) Attempt to login with Messenger

6) Click on the Terminal window to activate it.  Press and hold the control
key and press the c key - this will stop the network capture.  You should
see a file named networkcapt.txt on your desktop; you should send this file
to harrissrebecca@hotmail.com.

Thanks,
Rebecca
Rebecca Harriss
Microsoft Corporation
Macintosh Business Unit, SDET

This posting is provided ³AS IS² with no warranties, and confers no rights.