[Winpcap-users] Network crash when sending a certain amount

[Gianluca Varenni]

  ----- Original Message ----- 
  From: RJ 
  To: winpcap-users at winpcap.org 
  Sent: Monday, May 22, 2006 12:37 AM
  Subject: FW: [Winpcap-users] Network crash when sending a certain amount


  Hi,



  i think i got it solved. My sygate personal firewall doesn't seem to like packet injection via pcap. After I deactivated it, all worked fine.

  Too stupid I didn't notice earlier.

  Now another question: how do I get the firewall to work with my programs? It could be very dangerous to use them in unknown networks without firewall.



Good question. The main problem is that many personal firewall packages use some non standard way to filter network traffic (usually assuming the only the usual protocols like TCP/IP are installed on the system), thus causing an unpredictable behavior when WinPcap is installed. At the moment I cannot suggest any personal firewall that works with WinPcap (not because they all problems, we simply don't use personal firewalls, so we cannot give good suggestions...).



Have a nice day

GV










  Greetings,

  Roger John



  -----Original Message-----
  From: Gianluca Varenni [mailto:gianluca.varenni at cacetech.com] 
  Sent: Freitag, 19. Mai 2006 15:39
  To: winpcap-users at winpcap.org
  Subject: Re: [Winpcap-users] Network crash when sending a certain amount



  RJ,



  I think it's the same network card I have on my Dell laptop (Broadcom NetXtreme 57xx Gigabit Controller). I'll try to replicate the problem on it in the next week or so.



  Have a nice day

  GV

    ----- Original Message ----- 

    From: RJ 

    To: winpcap-users at winpcap.org 

    Sent: Friday, May 19, 2006 4:17 AM

    Subject: [Winpcap-users] Network crash when sending a certain amount



    Hi,



    it is a Broadcom NetXtreme Gigabit Ethernet. Windump works fine on it.

    I also tried it with the centrino wlan (for fun), and it give nearly the same effect

    (less packets to crash, and windump cant see anything on this adapter, although you can see network utilization in the taskbar icon).

    Hope this will appear at the right place in the mailing list. Always worked with forums;-)

    Greetings

    Roger John


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