Hi, I want to send packets from controller to HOST.
I tried to use packet_out message,but failed. I guess packet_out message is only sent from controller to switch. Am i wrong? Can anyone help me to solve ? Thanks, Alan 2016-08-09 8:55 GMT+08:00 Yi Tseng <[email protected]>: > > Hi Alan, > > To receive packet generated from controller, you can use scapy, it's a > packet manipulation python library. > > For example, you can use sniff function from scapy and sniff capture > packet from host interface. > > http://www.secdev.org/projects/scapy/doc/usage.html#sniffing > > > > 2016-08-08 21:09 GMT+08:00 Alan Wang <[email protected]>: > >> HI, >> >> Thanks for tour reply!! >> >> However I want to use these data sent from the controller at host. >> >> How to receive packets from the controller and transfer it to txt file at >> the host? >> >> Thanks, >> >> Alan >> >> 2016-08-08 21:08 GMT+08:00 Alan Wang <[email protected]>: >> >>> HI, >>> >>> Thanks for tour reply!! >>> >>> However I want to use these data sent from the controller at host. >>> >>> How to receive packets from the controller and transfer it to txt file >>> at the host? >>> >>> Thanks, >>> >>> Alan >>> >>> >>> >>> 2016-08-08 10:51 GMT+08:00 Yi Tseng <[email protected]>: >>> >>>> Maybe you can use tcpdump or use scapy to receive specific interface? >>>> >>>> 2016-08-07 21:13 GMT+08:00 Alan Wang <[email protected]>: >>>> >>>>> HI, >>>>> >>>>> Thanks for your reply!! >>>>> >>>>> Can i get data from packet-out message in the computer of the host? >>>>> >>>>> for example: >>>>> >>>>> http://osrg.github.io/ryu-book/en/html/packet_lib.html#gener >>>>> ation-of-packets-serialization >>>>> >>>>> Application example >>>>> >>>>> Can i get data from host? Where data wiil be stored in the computer of >>>>> the host? >>>>> >>>>> Thanks, >>>>> >>>>> Alan >>>>> >>>>> 2016-08-05 13:31 GMT+08:00 Iwase Yusuke <[email protected]>: >>>>> >>>>>> Hi, >>>>>> >>>>>> Please refer to the 'data' attribute of OFPPacketOut. >>>>>> You can set a binary type value, which you want send, into this >>>>>> attribute. >>>>>> e.g.) >>>>>> req = ofp_parser.OFPPacketOut(datapath, buffer_id,in_port, >>>>>> actions, >>>>>> data=<BINARY_TYPE_VALUE>) >>>>>> >>>>>> FYI: For building a binary type packet data, Ryu provides the packet >>>>>> libraries. >>>>>> 'bin_packet' in the following example is a binary type value to send. >>>>>> http://osrg.github.io/ryu-book/en/html/packet_lib.html#gener >>>>>> ation-of-packets-serialization >>>>>> >>>>>> Thanks, >>>>>> Iwase >>>>>> >>>>>> >>>>>> On 2016年08月05日 14:19, Alan Wang wrote: >>>>>> >>>>>>> HI, >>>>>>> >>>>>>> Thanks for your reply!! >>>>>>> >>>>>>> >>>>>>> def send_packet_out(self, datapath, buffer_id, in_port): >>>>>>> >>>>>>> ofp = datapath.ofproto >>>>>>> ofp_parser = datapath.ofproto_parser >>>>>>> >>>>>>> actions = [ofp_parser.OFPActionOutput(ofp.OFPP_FLOOD, 0)] >>>>>>> req = ofp_parser.OFPPacketOut(datapath, buffer_id,in_port, >>>>>>> actions) >>>>>>> datapath.send_msg(req) >>>>>>> >>>>>>> >>>>>>> In these codes of the example, i can't find data the controller send. >>>>>>> >>>>>>> I think it can't send data what i want to send. >>>>>>> >>>>>>> Thanks, >>>>>>> >>>>>>> Alan >>>>>>> >>>>>>> >>>>>>> 2016-08-05 12:04 GMT+08:00 Iwase Yusuke <[email protected] >>>>>>> <mailto:[email protected]>>: >>>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> You can use Packet-Out messages for such purpose, I guess. >>>>>>> http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ry >>>>>>> u.ofproto.ofproto_v1_3_parser.OFPPacketOut < >>>>>>> http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#r >>>>>>> yu.ofproto.ofproto_v1_3_parser.OFPPacketOut> >>>>>>> >>>>>>> Thanks, >>>>>>> Iwase >>>>>>> >>>>>>> >>>>>>> >>>>>>> On 2016年08月05日 12:45, Alan Wang wrote: >>>>>>> >>>>>>> Hi All, >>>>>>> >>>>>>> I want to send some data controller collected from >>>>>>> Controller to Host. >>>>>>> >>>>>>> What should i do ? >>>>>>> >>>>>>> Thanks, >>>>>>> >>>>>>> Alan. >>>>>>> >>>>>>> >>>>>>> >>>>>>> ------------------------------------------------------------ >>>>>>> ------------------ >>>>>>> >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Ryu-devel mailing list >>>>>>> [email protected] <mailto: >>>>>>> [email protected]> >>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel < >>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> ------------------------------------------------------------ >>>>>>> ------------------ >>>>>>> >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Ryu-devel mailing list >>>>>>> [email protected] >>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel >>>>>>> >>>>>>> >>>>> >>>>> ------------------------------------------------------------ >>>>> ------------------ >>>>> >>>>> _______________________________________________ >>>>> Ryu-devel mailing list >>>>> [email protected] >>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel >>>>> >>>>> >>>> >>>> >>>> -- >>>> Yi Tseng (a.k.a Takeshi) >>>> Taiwan National Chiao Tung University >>>> Department of Computer Science >>>> W2CNLab >>>> >>>> http://takeshi.tw >>>> >>> >>> >> >> ------------------------------------------------------------ >> ------------------ >> >> _______________________________________________ >> Ryu-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/ryu-devel >> >> > > > -- > Yi Tseng (a.k.a Takeshi) > Taiwan National Chiao Tung University > Department of Computer Science > W2CNLab > > http://takeshi.tw >
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