Hello,
I am trying to modify chosen protocol packets in controller.
I have created flow with priority 2 matching ICMP packets, which sends
them to the controller:
1. cookie=0x0, duration=58.884s, table=0, n_packets=9, n_bytes=882,
priority=2,icmp actions=CONTROLLER:65535
In the controller, depending on the packet content, I modify it (or not)
and then send it back to the switch to be forwarded as the rest of the
traffic.
For that I have created a flow matching packets with in_port=CONTROLLER,
given priority 3. This flow forwards packets to another Flow table,
where they are matched and forwarded to specified ports:
2. cookie=0x0, duration=58.884s, table=0, n_packets=0, n_bytes=0,
priority=3,in_port=CONTROLLER actions=goto_table:1
However, packets sent from controller match with first flow rather than
the second one. It seems their in_port is not CONTROLLER.
This is how I tried to send packets from controller back to switch:
* out = parser.OFPPacketOut(datapath=datapath,
buffer_id=ofproto.OFP_NO_BUFFER, in_port=ofproto.OFPP_CONTROLLER,
actions=actions, data=data)
* out = parser.OFPPacketOut(datapath=datapath,
buffer_id=ofproto.msg.buffer_id, in_port=msg.match['in_port'],
actions=actions, data=data)
Is there any way to manually change the 'in_port' before sending the
packet? Or any other way to distinguish packets coming from controller
(set packet cookie, ...)?
Thank you.
Best begards
Michal Palatinus
------------------------------------------------------------------------------
_______________________________________________
Ryu-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ryu-devel
