a wrote:
It is correct. I'm using openwrt and, at the moment, without -M option. 1500byte packets work, with fragmentation. However, my TCP packets are small (about 60bytes). I have verified TCPDump file and packets arrive. It seems that the Linux IP stack does not forward them to the application. Moreover, if I disable batman on B1-GW1 link, it works
So it would be a good idea to do what Marek said. Give him a dump with `batctl td` on the gateway and if I could add something: complete tcpdump of both ends so we can see what packets receive on both sites.
Best regards, Sven