How can I enable packet forwarding on Windows?
If you want to enable forwarding for a specific interface or all interfaces you can do it easily from PowerShell, no reboot required. (NOTE: be sure to run as an Administrator if you want to change the setting)
To look at the status of forwarding for all interfaces you can execute the following:
Get-NetIPInterface | select ifIndex,InterfaceAlias,AddressFamily,ConnectionState,Forwarding | Sort-Object -Property IfIndex | Format-Table
This will provide a nice table showing all the interfaces and their current forwarding configuration.
Then if you want to enable forwarding on one you can run:
Set-NetIPInterface -ifindex <required interface index from table> -Forwarding Enabled
If you want to enable it for all interfaces simply run:
Set-NetIPInterface -Forwarding Enabled
Then if you want to disable it again simply replace "Enabled" with "Disabled".
And remember to enable Routing and Remote Access service (By default is disabled) by running:
Set-Service RemoteAccess -StartupType Automatic; Start-Service RemoteAccess
Try to go to the registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters. If not already there, create a new
REG_DWORD value named
1 and reboot. Packet forwarding should now be enabled.
To add static routes use the