Hi, I'm building up network using mininet and Ryu controller. When using simple_switch_13.py in Ryu for test Ryu controller it worked well. But I wrote my own Ryu controller for mininet which serialize packets and use add_protocol method when ipv4 protocol for packet. But there occur attribute error: AttributeError: 'NoneType' object has no attribute 'src' I think the problem is there is no src address for packets coming from the switch. I have assigned dst address of the packet to the source address. How can I assign IP address for switch for the link which connect with the controller ?
Thank you. Regards
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