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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