freebsd ARP problem

[Коньков Евгений]

Здравствуйте, Peter.

Вы писали 4 августа 2011 г., 9:57:41:

PA> 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?

PA> What says arp -a on 77.93.52.9? Did you try ping 77.93.52.10 from 77.93.52.9?
I do not know. That is not mine server and I have no access to it.
When admin of that server try to ping mine 77.93.52.10 I see
  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            ............
packets on interface with 77.93.52.10 address


>>
>>
>> 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
>>>>
>>>> _______________________________________________
>>>> freebsd-questions at freebsd.org mailing list
>>>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>>>> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
>>>>
>>
>>
>>
>>
>>
>>
>> --
>> С уважением,
>>  Коньков                          mailto:kes-kes at yandex.ru
>>
>>






-- 
С уважением,
 Коньков                          mailto:kes-kes at yandex.ru