Hi, OK, I tested this across two machines, and you're absolutely right. When the router is running 2.2 and the dealer 4.0, there's an extra null message produced by the router. Here's a typical dump of messages the router delivers:
-------------------------------------- [017] 00496C3B250C0042ABA57F226547411A77 [000] -------------------------------------- [017] 00496C3B250C0042ABA57F226547411A77 [006] 48656C6C6F00 The null message is sent when the dealer connects, even if it does not send any other message. I'm raising an issue, here: https://github.com/zeromq/libzmq/issues/763 -Pieter _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
