QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Connecting two QNX4 ethernet LANs |
| Ref. No. |
QNX.000009290 |
| Category(ies) |
Network, Configuration |
| Issue |
We have two QNX LANs, each running on Ethernet.
Our problem is that the nodes on LAN1 cannot communicate with any node on LAN2, other than the node (node 4) that is directly connected to both networks. Is there some way to have all nodes on LAN1 communicate with all nodes on LAN2?
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| Solution |
Before QNX4.23, two computers wishing to communicate via QNX networking each needed at least one networking card directly connected to the same network.
With QNX4.23, however, the Network Manager examines its netmap file for all interconnected networks and learns about "relay" nodes-such as node 4 in your example. As a result, the Network Manager on node 1 "knows" that in order to communicate with node 5 (LAN1 to LAN2) it must physically address the packet to node 4. This functionality doesn't require any special configuration to be enabled.
For your example, the netmap file on all your machines would look something like this:
netmap
1x091x0900C093 0032AE
2x091x0900C093 0076F1
3x091x0900C093 87D983
4x091x0900C093 126BED
4x092x0900C093 756432
5x092x0900C093 12EDA6
6x092x0900C093 9823BB
7x092x0900C093 825347
The documentation for installing and configuring the QNX 4 RTOS is online at:
http://support.qnx.com./support/docs/qnx4/user_guide/index.html
You will want to check out the chapter on networking. |
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