Hello, I am trying to block all outbound traffic on my ethernet interface. I seem to be unable to block some multicast and broadcast traffic such as NBNS Broadcasts I have set default outbound rule to deny I have disabled all outbound rules. I have even enabled 1 rule to block all traffic. Wireshark still shows broadcasts and multicast traffic. Any help appreciated. Gav

If you wish, you can try disabling NetBIOS. Open "Network Connections", click Properties on your network interface, click properties on "Internet Protocol Version 4", click Advanced, then click the WINS tab.

Hello, Thanks for the reply. However netbios was just one examble. I have cannon scanner software that also broadcasts every few seconds. I am looking for a solution that will work now and in the future. I need to know that when i plug into sniff traffic i am not sending anything. Thanks for the help.

Hello, Thanks for the input, but as stated in my first post i have tried this. I have a webpage with pictures to show everything I've tried so far. http://users.tpg.com.au/gbung3/firewall%20stealth%20mode%20summary.htm Thanks

Hi, To block all outbound traffic, please check the following article. It can also be applied on Windows 7. http://www.demogeek.com/2009/01/18/block-outbound-traffic-windows-vista-firewall/ Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I have found that any windows 7 pro machine will allow broadcast traffic though.

I'm assuming you are doing this for testing purposes so it might be easier to install a third-party firewall.