freebsd ARP problem

[Peter Andreev]

4 августа 2011 г. 9:56 пользователь Коньков Евгений <kes-kes at yandex.ru> написал:
> Hi, Peter.
>
> GW-77.93.52.9/29 <---------> 77.93.52.10/29-MyServer
>                               00:1b:21:45:da:b8
>
> I have change LAN and not it is:
> GW-77.93.52.9/29 <---------> 77.93.52.10/29-MyServer
>                               00:30:67:5a:44:72
>
> ping 77.93.52.9
> ^C
> --- 77.93.52.9 ping statistics ---
> 3 packets transmitted, 0 packets received, 100.0% packet loss
>
> tcpdump -n -i re0 arp
>  15:39:46.540277 ARP, Request who-has 77.93.52.10 (00:1b:21:45:da:b8) tell 77.93.52.9, length 46
>         0x0000:  001b 2145 dab8 0006 d602 e0c0 0806 0001  ..!E............
>         0x0010:  0800 0604 0001 0006 d602 e0c0 4d5d 3409  ............M]4.
>         0x0020:  001b 2145 dab8 4d5d 340a 0000 0000 0000  ..!E..M]4.......
>         0x0030:  0000 0000 0000 0000 0000 0000            ............
>
> 77.93.52.9 thinks that 77.93.52.10 have old MAC 00:1b:21:45:da:b8
> Why freebsd do not answer for 'who-has' packet?

What says arp -a on 77.93.52.9? Did you try ping 77.93.52.10 from 77.93.52.9?
>
>
> PA> Eugenie
>
> PA> I didn't understand your question, so I ask you for some clarification.
> PA> 3 августа 2011 г. 17:19 пользователь Коньков Евгений
> PA> <kes-kes at yandex.ru> написал:
>>> Hi, all.
>>>
>>> I delete IP address from one server and add it to this one.
> PA> You moved IP address from one server to second one. Right?
>
>>> But connection is not up, because of remote server (77.93.52.9)
>>> ask IP and notice MAC in whe-has frame.
> PA> Are you trying to connect from second server to third one?
> PA> Whose ip address is 77.93.52.9?
>>>
>>> 15:39:46.540277 ARP, Request who-has 77.93.52.10 (00:1b:21:45:da:b8) tell 77.93.52.9, length 46
>>>        0x0000:  001b 2145 dab8 0006 d602 e0c0 0806 0001  ..!E............
>>>        0x0010:  0800 0604 0001 0006 d602 e0c0 4d5d 3409  ............M]4.
>>>        0x0020:  001b 2145 dab8 4d5d 340a 0000 0000 0000  ..!E..M]4.......
>>>        0x0030:  0000 0000 0000 0000 0000 0000            ............
>>>
>>> Must freebsd replay to this who-has packet with
>>> ARP, Reply 77.93.52.10 is at ....
>>>  or it must it ignore, becase of 00:1b:21:45:da:b8 is not its MAC address?
> PA> Are these servers in different network segments?
>>>
>>>
>>> --
>>> С уважением,
>>>  Коньков                          mailto:kes-kes at yandex.ru
>>>
>>> _______________________________________________
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>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
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>>>
>
>
>
>
>
>
> --
> С уважением,
>  Коньков                          mailto:kes-kes at yandex.ru
>
>



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