I am new to mininet and trying to follow the tutorial on mininet/openflow https://github.com/mininet/openflow-tutorial/wiki/Learn-Development-Tools
I have a problem with the Wireshark. Here in the tutorial it is said that:
open Wireshark:
> $ sudo wireshark
Now, set up a filter for OpenFlow control traffic, by typing 'of' in Filter box near the top: Press the apply button to apply the filter to all recorded traffic.
I did this, but I encounter this error:
"of" isn't a valid display filter: "of" is neither a field nor a protocol name.
What's wrong?
If you want to filter out openflow packets just type openflow instead of or you can generate expression by choosing from the window that gets popped up when you click on expression button