Hi all, after realizing that Beckhoff seems to use ADS inside of EtherCat frames sent directly inside Ethernet frames (which seems to take only a fraction of the protocol overhead a normal TCP packet requires. I renamed the RawSocket to RawIpSocket and added a new type RawEthernetSocket, which allows to send and receive raw Ethernet frames and would allow implementing protocols like EtherCat and Profinet IO.
The one problem I’m having with this, is that right now you need to pass in the MAC addresses of the target as well as that of the source. The problem without this I can’t seem to be able to find out which network device is able to communicate with the given MAC address. I tried several things, but none of them seemed to work without knowing the IP address of the target. Having a Ethernet level connection sounded bad to require an IP. It anyone here has an Idea how I could check which local network device can be used to send data to a remote mac address, I would be super happy. Next thing I definitely need to do, is to implement the “Raw socket” -> Netty integration … sort of a little hesitant to do that as this API is really quite a mess :-( Chris
