Ok, further insight here:
* the version command is a problem the packet in hex looks like:
VERSION: 800b00000000000000000000000000000000000000000000
* set command with flags set to anything than "0"
e.g set command with flags set to "1" , key ==hello, value == world:
SET:
800100050800000000000016000000000000000000000000000000010000000068656c6c6f0408220a776f726c64
The commands are valid according to
https://github.com/trondn/memcached/blob/master/doc/protocol-binary.xml
(or whoever defines what "memcache" means :-)
This is just FYI, a good thing would be if kumo-gateway could complain
about wrong packets, e.g. send an error packet back.
(or maybe it does and I couldn't debug it in the dalli client)
Christian