IP fowarding

Normally, commercial operating systems do not act as routers. They discard any IP packet with a destination IP address not assigned to an active network interface. It is fairly easy to enable IP forwarding, there are instructions elsewhere to do so on Windows and Linux.

You’ll also need to add appropriate route settings to the routing table, so that the IP packets are routed through the correct network interface. This can be done using the route add command on Windows and Linux.

I have had problems routing multicast packets (IP addresses through, formerly referred to as Class D addresses). Windows does not route multicast traffic by default. Using EnableMulticastForwarding does not automatically enable it either.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s