The Python parsing logic in zaku has a few corner cases that it does
not handle. I would suggest trying the destiny version of this
function.
def convert_to_eaddr(val):
if isinstance(val, ethernetaddr):
return val
if isinstance(val, array.array):
val = val.tostring()
if isinstance(val, str) and len(val) == ethernetaddr.LEN:
return create_bin_eaddr(val)
elif isinstance(val, str) or isinstance(val, int) or
isinstance(val, long):
return create_eaddr(val)
return None
Regards
KK
On 5 January 2011 15:51, Yiannis Yiakoumis <yiann...@stanford.edu> wrote:
> In the pcap files there are some unexpected packet-ins :
>
> -> Multicast Listener Report Message v2
> -> Neighbour Solicitation.
>
> These are IPv6 packets, with src "::" and dest ff02::16.
>
> 1. Why my switch receives these packets. Should I disable IPv6 or any daemon
> at mininet hosts?
> 2. Could Nox be meshed-up while trying to decode these?
>
> Y.
>
>
> On Wed, Jan 5, 2011 at 3:37 PM, Bob Lantz <rla...@cs.stanford.edu> wrote:
>>
>> As I recall the problem had to do with certain Nox routines trying to be
>> smart and accept either a binary MAC ('\1\2\3\4\5\6') or one in ASCII
>> ('01:02:03:04:05:06'). If it has ASCII 58, ':', it assumes that it's an
>> ASCII MAC and various errors occur. I thought the problem was fixed
>> however...
>> -Bob
>> On Jan 5, 2011, at 2:51 PM, Yiannis Yiakoumis wrote:
>>
>> it might be cause I remember another address that started with 58 as well.
>> What's this bug? I am using zaku..
>>
>> Y.
>>
>> On Wed, Jan 5, 2011 at 2:40 PM, Bob Lantz <rla...@cs.stanford.edu> wrote:
>>>
>>> Is this because we're using an older version of NOX that still has the
>>> colon (i.e. chr(58)) bug?
>>>
>>> On Jan 5, 2011, at 2:06 PM, Yiannis Yiakoumis wrote:
>>>
>>> > Hi,
>>> >
>>> > I am writing a simple script using Mininet and Nox. When I don't set
>>> > the setAutoMacs=True in Mininet, randomly selected MACs seem to cause
>>> > problems to Nox. Nox just shows an "invalid ethernet addr" message and
>>> > skips
>>> > the packet. It comes from nox/lib/util.py, lines 278-285. Here is an
>>> > output
>>> > :
>>> >
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> > array('B', [2, 129, 31, 58, 172, 59])
>>> > invalid ethernet addr
>>> >
>>> > Setting setAutoMacs=True seems to solve the problem...
>>> >
>>> > Thanks,
>>> > Y.
>>> > _______________________________________________
>>> > mininet-dev mailing list
>>> > mininet-...@lists.stanford.edu
>>> > https://mailman.stanford.edu/mailman/listinfo/mininet-dev
>>>
>>
>>
>
>
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