It at least used to be the case that this could be gotten around with flash, though that may be fixed, and many people won't run strange flash anymore anyway.
Another way, if you're using WebSockets, you can establish that the latency is unrealistically low to be a switched physical network, with pings (with cookies).
It at least used to be the case that this could be gotten around with flash, though that may be fixed, and many people won't run strange flash anymore anyway.
Another way, if you're using WebSockets, you can establish that the latency is unrealistically low to be a switched physical network, with pings (with cookies).