On 2016-02-15 20:08, Paul Koning wrote:

On Feb 15, 2016, at 2:02 PM, Johnny Billquist <[email protected]> wrote:

On 2016-02-15 19:53, Paul Koning wrote:

On Feb 15, 2016, at 1:48 PM, Hittner, David T (IS) <[email protected]> 
wrote:

LAT runs fine over the (wired) Ethernet port.
LAT doesn’t run over wireless Ethernet without major help from the wireless 
hardware or unless it’s tunneled over IP.

I'm still baffled.  Why doesn't it?  802.11 has the same MAC layer service as 
Ethernet -- broadcast, multicast, unicast, 48 bit addresses, etc.  What 
specifically does LAT do that doesn't work on 802.11?  Is it a standards issue, 
or a case of defective implementations?

Trying to recall what I might have read/understood from somewhere, the problem 
is that WiFi might look like ethernet, but there are some important 
differences. One of these is that the switch/router actually *knows* the MAC 
addresses that are connected, as in the card/controller identities. Which, 
unlike a normal ethernet, means that if you add a device with a different mac 
address to the interface, the router at the other end will not learn this, and 
will not forward packets to you the way you would expect it to work on an 
ethernet.

So you can't build a LAN bridge with a Wifi network-side interface?  Really?

No, you need to route things.

        Johnny

_______________________________________________
Simh mailing list
[email protected]
http://mailman.trailing-edge.com/mailman/listinfo/simh

Reply via email to