Hi Ramon,
Have you specified the ethertype in your flowmod. I believe setting it to ip
(0x800) and the ip protocol to TCP (6) you should be fine.
Cheers.
--
Ali
On Nov 7, 2011, at 10:44 AM, Ramon Marques wrote:
> Hi,
>
> I'm running openflow on mininet, but I'm having a problem when I try to
> include TCP ports in the rule.
> Here is the piece of code where I install the flow.
>
> attrs = {}
> attrs[core.IN_PORT] = inport
> attrs[core.DL_DST] = destino
> attrs[core.TP_SRC]= tcp_port
> attrs[core.TP_DST]= 80
>
> action = [[openflow.OFPAT_SET_DL_DST, server_mac],
> [openflow.OFPAT_OUTPUT, [0, server_port]]]
> self.install_datapath_flow(dpid, attrs, 60, 60, action, bufid, 10,
> inport, None)
>
>
> I captured the FlowMod packet on wireshark, and copied the flow modification
> fields.
>
> Flow Modification
> Match
> Match Types
> Input Port: 3
> Ethernet Dst Addr: Broadcast (ff:ff:ff:ff:ff:ff)
> TCP/UDP Src Port: 59279 (59279)
> TCP/UDP Dst Port: http (80)
>
>
> The fields in the FlowMod packet are correct, but the flow that is installed
> on the switch do not contain the TP_SRC and TP_DST fields.
> Here is the "dpctl dump-flows" output.
>
> openflow@openflowvm:~$ dpctl dump-flows tcp:127.0.0.1:6634
> stats_reply (xid=0x49e35a53): flags=none type=1(flow)
> cookie=0, duration_sec=2s, duration_nsec=855000000s, table_id=0,
> priority=10, n_packets=40, n_bytes=3045,
> idle_timeout=60,hard_timeout=60,in_port=3,dl_dst=ff:ff:ff:ff:ff:ff,actions=mod_dl_dst:00:00:00:00:00:03,output:2
>
>
> Packet are matching with the flow no matter their TCP ports.
> Does anyone knows what I am doing wrong?
>
> Thanks in advance
>
>
> --
> Ramon Marques Ramos
>
> Engenheiro de Computação
> Mestrando em Informática -UFES
>
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