Is there any solution to communicate among QNX4 and QNX6?

Hi,

In QNX 4.25, we can call “alive” command to see list of nodes. Some computer shows “UP” if they are connected via a hub or switch.

Now if I connect a computer running QNX 6 (6.3 or 6.4) to this net (via a RJ45 cab), Is it can “talk” with them?

Is there any solution to communicate among them (QNX4 and QNX6)?

TCP/IP