Hi Is it possible to change the TTL of an incoming packet in windows? I have installed virtualbox 4.0.2 on windows 7 and the guest os is ubuntu. Due to some reasons, the ISP limit the TTL to 1 (if you want to know the reason, have a look at http://www.kamburov.net/aleksandar/articles/attlfilter.html). This causes problems with the guest os as the packet cannot be forwarded from host to guest. If the host os is linux, then I can change the TTL (it has been discussed at https://help.ubuntu.com/community/VirtualBox/Networking). Any body has a solution to that? thanks

Hi, Try to modify the registry value DefaultTTL using the following steps: 1. Open Registry Editor (regedit.exe). 2. Navigate to the following registry HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters. 3. In the right pane, add the following value: Name: DefaultTTL Type: REG_DWORD Valid Range: 1-255 4. After that, please restart the computer and check the result. 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.