If the Bacnet console asks for information that is larger than the frame size, Transport->sendResponse() will use network->sendSegmented instead of network->sendAPDU. sendAPDU works great but sendSegmented is having problems with keys in the waiting room. When it sends the first segment Transport->sendSegments always comes back with a null response. This is causing a lot of hangs in the console as it waits for information. The console appears to be sending the correct response based on Wireshark.

If the Bacnet console asks for information that is larger than the frame size, Transport->sendResponse() will use network->sendSegmented instead of network->sendAPDU. sendAPDU works great but sendSegmented is having problems with keys in the waiting room. When it sends the first segment Transport->sendSegments always comes back with a null response. This is causing a lot of hangs in the console as it waits for information. The console appears to be sending the correct response based on Wireshark.

Can you set it in your bootup scripts? If on linux you can put it either in the system startup or in the service script.

At the moment that is the big hammer approach. I am experimenting with setting up a virtual network on the linux system just for the bacnet devices. I will let you know how that goes. The ifconfig and ip commands can do the same things. the ip command can do more but for this application ifconfig is just fine. I am going to start a blog of my experiences and give some same code once I get this thing working (just about ready).
Scott

I could never get the slave device test to work. The only way this has worked is when the port numbers are identical. This is why using the virtual interfaces was critical. You can set the port to 47808 for all of them.

I am a linux guy but found this: http://www.sevenforums.com/network-sharing/3156-adding-virtual-network-adapter.html
Good luck!

Thanks! I was just pulling my hair out on a similar problem.

The 02: etc on the mac address has been kindly replaced with smiley faces. 02 colon hex hex colon .....

I was pretty successful when I used virtual interfaces bound to the main interface. I have to track which device is bound to what address and have to use a virtual mac address when I configure it. Using 02:xx:xx:xx:xx:xx is okay as the 02 is for "local" unregistered mac addresses. I track the mac and ip address of the interface and which device is attached. On a linux system I use the ip command to configure the interfaces on startup. Let me know if you need more info.
Scott

I have tried to fix the error I have with using multiple ip addresses which works fine as long as they are on the same subnet as the Bacnet Console. I also am trying to use the same method as the "SlaveDevice.java" test file. There are several problems with this, the first of which is it fails with:
Apr 01, 2014 10:49:12 AM com.serotonin.bacnet4j.service.unconfirmed.IAmRequest handle
WARNING: Another instance with my device instance ID found!
Apr 01, 2014 10:49:12 AM com.serotonin.bacnet4j.service.unconfirmed.IAmRequest handle
WARNING: Another instance with my device instance ID found!

Repeated twice when I send the IAm messages. Any ideas? This is a direct copy of the original source file I am using.
Scott

I have multiple devices on the same physical platform. I have added multiple IP addresses to the NIC and then created devices that use the standard port but different address with the "bind address" when creating an UpNetwork object. If I use one device with the primary IP and one with a newly bound address, then send a IAM broadcast, the console sees both devices but can only query the one bound to the primary address. The other one is reporting the same address! Am I missing something here? If I use the same address but increment the port I get the same problem of the first can be queried and the second cannot.
Scott

I have multiple devices on the same physical platform. I have added multiple IP addresses to the NIC and then created devices that use the standard port but different address with the "bind address" when creating an UpNetwork object. If I use one device with the primary IP and one with a newly bound address, then send a IAM broadcast, the console sees both devices but can only query the one bound to the primary address. The other one is reporting the same address! Am I missing something here? If I use the same address but increment the port I get the same problem of the first can be queried and the second cannot.
Scott

When creating a series of device objects you are forced to increment the port on each one. If you do not there is a "Cannot create device, address in use" problem. However, the incrementing port is a problem as the BACNET console is not seeing any device that is not on the standard port. Any ideas?

When creating a series of device objects you are forced to increment the port on each one. If you do not there is a "Cannot create device, address in use" problem. However, the incrementing port is a problem as the BACNET console is not seeing any device that is not on the standard port. Any ideas?

Are you running as root? I think you will need to be.

I am having the same problem. Is there anything besides the test files and source code to go by?

I am trying to expose multiple devices, each with multiple objects. When I set the local device on each everything is fine, but when I initialize each one, the first works fine and then the others get an error that I am trying to use a duplicate address. How do you configure multiple local devices??
Scott Didriksen

I am trying to expose multiple devices, each with multiple objects. When I set the local device on each everything is fine, but when I initialize each one, the first works fine and then the others get an error that I am trying to use a duplicate address. How do you configure multiple local devices??
Scott Didriksen