dali/bacnet_stack
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added netstat hint to FAQ.

Browse Source
This commit is contained in:
skarg
2016-07-08 16:18:34 +00:00
parent fecbbcb0f2
commit a97bc78ade
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/doc/README.faq
+4 -1
View File
@@ -121,7 +121,10 @@ A-14: Here are the things that you can do to shrink the firmware size:
Q-15: I have downloaded the BACnet stack but can't get demo/server to work. I am using a single computer. In one console window I run demo/server/bacserv. In another console window I run demo/whois/bacwi. When I capture packets with WireShark, I see the I-Am broadcast packet being sent by demo/server/bacserv when it starts. I also see the Who-Is broadcast packet sent by demo/whois/bacwi. But demo/server/bacserv never receives any message. How do I make it work?
A-15: This is a common issue with BACnet/IP. The server application binds to the BACnet/IP UDP port 47808 on that computer, and therefore, the client application is unable to receive broadcast messages on port 47808 since those packets are only going to the server application.
A-15: This is a common issue with BACnet/IP. The server application binds to the BACnet/IP UDP port 47808 on that computer, and therefore, the client application is unable to receive broadcast messages on port 47808 since those packets are only going to the server application. You can use the netstat tool to see if the port is in use:
$ netstat -p udp -a -n | grep 47808
UDP 10.87.225.118:47808 *:*
The correct solution is to use BVLC (BACnet Virtual Link Control) where the client applications use BACnet Foreign Device Registration, and some application (probably the server) runs a BBMD (BACnet Broadcast Management Device).