| 
 You're definitely right about it being WinPCap... I get the 
same result when simply running windump on that interface..  My situation 
is a little different than the gentleman's that started this 
thread.. 
  
1) I have NO software firewall running 
2) I am using AT&T AGN client 6.3 
  
When attempting to capture, I am capturing on the VPN 
Interface... I can see the outbound packets but no responses come back... This 
gives the appearance of network traffic being blocked completely because 
applications are not getting their responses.  Once I stop the capture, 
normal operation resumes. 
  
Joe Morsbach Sr. Technical 
Specialist 
AT&T Integrated Mobile 
Services
  
908.824.9007 (Single Reach) AIM: 
sta49fireboy Yahoo!: sta49fireboy
  
   
This is definitely a WinPcap issue and not a wireshark one 
(wireshark receives packets from WinPcap). 
  
I would say that either the Symantec firewall, the VPN client 
or the AT&T ipsec client (is that an ipsec client or a firewall) are 
interacting really badly with the WinPcap protocol driver.  
  
Can you please try disabling the AT&T firewall? Also, from 
which adapter are you trying to capture? The ethernet adapter or on the 
VPN? 
  
Have a nice day 
GV 
  
  ----- Original Message -----  
  
  
  Sent: Monday, November 12, 2007 12:03 
  PM 
  Subject: Re: [Wireshark-users] Starting 
  Wireshark Capture Blocks NetworkTraffic 
  
  
  Was there ever 
  resolution to this?  I am having the same trouble. 
    
  Thanks 
    
    
  From: David Pruitt < djpruitt@xxxxxxxxxx> Date: 
  Fri, 6 Apr 2007 11:28:18 -0400 AT&T Network Client - IBM Version 5.09.2 
  Firewall name and version is AT&T IPSec 
  Application version 5.09.2 Service is 
  Managed VPN - IPSec Dual Access Microsoft Windows XP 5.01.2600 SP2 Also have Symantec Client Firewall installed but currently 
  disabled.  Thank 
  You!
  David J. Pruitt
  
  
    
    
      "Gianluca Varenni" 
        <gianluca.varenni@xxxxxxxxxxxx>  Sent by: 
        wireshark-users-bounces@xxxxxxxxxxxxx 
        04/06/2007 11:13 AM 
         
          
          
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               Please respond 
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              <wireshark-users@xxxxxxxxxxxxx>  |    
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               Subject 
             | Re: [Wireshark-users] Starting 
              Wireshark Capture Blocks Network       
               Traffic |    
        
  |   Which VPN client are you using?   
  Have a nice day GV ----- Original Message ----- From: 
  David Pruitt To: wireshark-users@xxxxxxxxxxxxx 
  Sent: Friday, April 06, 2007 7:52 AM 
  Subject: [Wireshark-users] Starting Wireshark Capture 
  Blocks Network Traffic  Hello, 
  I downloaded and installed Wireshark version 0.99.5 with WinPcap 
  4.0 and am trying to capture some detailed TCP/IP packet transmissions from my 
  client application connecting via DSL using VPN software to connect to a 
  remote server on my business WAN.  Once I start the Wireshark capture, 
  all of my applications on the client side cannot connect to my work network 
  over the VPN connection.  I am able to access other web sites not using 
  the VPN.     Any suggestions would be appreciated. 
  Thank You!
  David J. 
  Pruitt  
  
    
  _______________________________________________ Wireshark-users 
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  list Wireshark-users@xxxxxxxxxxxxx http://www.wireshark.org/mailman/listinfo/wireshark-users
  
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