On 21-Feb-18 09:57, Paul Koning wrote: > > I remember some discussions about trouble if you use a wireless LAN as > opposed to a wired NIC, but I don't remember any details. The short answer is that wireless routers assume that the only worthwhile protocols are IP/ARP & some VPN tunnels, and that a client has exactly one endpoint.
Many (most?) wireless routers assume that a client has a single MAC address. SimH packets will have one/emulated NIC; the host (client) packets will have another. The router will keep track of the MAC address used for associating with the access point (the host's), and drop any other (on the theory that it saves bandwidth - with one MAC/client, "anything else is a waste"). The assumption is violated by SimH. Support for non-IP protocol types is also problematic with some wireless routers. The first problem could be solved if wireless NICs had a promiscuous mode (multiple associations could fool the router). Unfortunately, as anyone who's ever tried to get a wireless packet trace knows, wireless NICs that do promiscuous mode are rare (and expensive). And of those, ones that support promiscuous transmit are rarer and pricier. The only practical solution is to tunnel all the SimH frames over an IP connection to the wired LAN. (Or, if you are trying wireless simh to wireless simh, between the wireless host nodes. I think someone figured out how to do this, but I've never bothered.
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