Interface bridge on fire-wall router not working

[otokwala]

I am just starting to use Coreemu, so can someone please help explain what I am doing wrong that I am not getting the correct output. I configured a simple network by following the example on this link - https://github.com/peppelinux/Common-Open-Research-Emulator-CORE-Tutorials

I also went on to configuring the BRIFNAME=$(ifconfig | grep "^b.[0-9]\{4\}.[a-z0-9]*"| awk -F' ' {'print $1'}) in the core session hook so that the ifname bridge will not change

I then proceeded to run the emulator and tried to run brctl to see the bridges and the interfaces. However, when I ran tcpdump tcpdump -i $BRIFNAME as suggested in the tutorial above, surprisingly, the output was completely different and no interface was in listening mode and there was no semblance of traffic.

The output according to the tutorial was supposed to be like this:

So, I really do not understand where I went wrong as I have checked it over and over again and it was obvious that I did not miss any steps. Now because of this, when I tried to assign an IP address to the bridge, I got an error message. Can someone please help me.

[otokwala]

Yea, I was able to resolve it by replacing the variable name, BRIFNAME with the bridge name, b.xxx.xxx