On Mon, May 16, 2016 at 2:08 PM, <banysalam...@yahoo.com> wrote:
> Hi:
>
> I want to specify IP addresses in the Match so I can retrieve them later.
> When I set ipv4_src, ipv4_dst , it takes them but generates error message
> bad match with type 4, code 9.
>
> This is the segment of code
>
> if(pkt.get_protocols(ethernet.ethernet) and
> pkt.get_protocols(ipv4.ipv4)):
> (ip4,) = pkt.get_protocols(ipv4.ipv4)
> ipsrc = ip4.src
> ipdst = ip4.dst
> protocol = ip4.proto
> match = parser.OFPMatch(in_port=in_port, eth_dst=dst,
> eth_src=src, ipv4_src=ipsrc, ipv4_dst=ipdst )
> else:
> match = parser.OFPMatch(in_port=in_port, eth_dst=dst,
> eth_src=src)
> print match
>
> and this the output
>
> OFPMatch(oxm_fields={'eth_src': 'c6:84:a3:ec:d5:01', 'eth_dst':
> 'de:d6:41:96:48:86', 'ipv4_src': '10.0.0.7', 'in_port': 3, 'ipv4_dst':
> '10.0.0.1'})
> ('OFPErrorMsg received: type=0x%02x code=0x%02x message=%s', 4, 9, '0x4 0xe
> 0x0 0x78 0x89 0xd2 0x9d 0x12 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
> 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x5 0x0 0x0 0x0 0x1 0xff 0xff 0xff 0xff 0x0 0x0
> 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x1 0x0 0x0 0x0 0x1 0x0 0x30 0x80 0x0 0x0 0x4
> 0x0 0x0 0x0 0x3 0x80 0x0 0x6 0x6')
>
> what is the problem?
When matching on l3 fields you must tell openflow the ethernet type
your expecting. for the ipv4 match you can change it to:
from ryu.lib.packet import ether_types
parser.OFPMatch(in_port=in_port, eth_dst=dst, eth_src=src,
eth_type=ether_types.ETH_TYPE_IP,
ipv4_src=ipsrc, ipv4_dst=ipdst)
Happy Hacking!
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