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Потеря соединения c медиасервером при влюченном igmp-proxy


Александр Рыжов
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У меня после перезагрузки Ultra II (а перегружается она до-о-олго) плееры WD TV Live сообщают об отсутствии сети. Передёргивание сетевого кабеля плеера решает проблему.

Возможно, дело во внешнем свитче Ultra II: свитч остаётся включенным во время перезагрузки роутера, а клиенты за это время не дожидаются ответа от DHCP-службы кинетика.

Готов предоставить информацию для диагностики проблемы, если это будет необходимо.

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Порты свича выключаются в загрузчике, auto-negotiation тоже перестартует. есть некоторая задержка между моментом поднятия линка и началом ответа DHCP-сервера, может маленький таймаут у плеееров. Можно ли узнать, на что конкретно жалуется плеер, в нем есть диагностика?

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Возможно, дело во внешнем свитче Ultra II: свитч остаётся включенным во время перезагрузки роутера, а клиенты за это время не дожидаются ответа от DHCP-службы кинетика.

Вообще-то обыденная штатная ситуация, не касающаяся конкретно Ultra или свитчей, довольно часто бывает, что отваливается линк и не приходят ответы на DHCP запросы, поэтому на всех нормальных устройствах DHCP клиенты посылают запросы в сеть с некой периодичностью, пока не получат ответ. Тут скорее всего надо обращаться к производителю медиаплеера, почему он не учел эту ситуацию, это в принципе не нормально...

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Можно ли узнать, на что конкретно жалуется плеер, в нем есть диагностика?
Не могу воспроизвести: после трёх перезагрузок на прошивке ku_rd_nightly_2.06.A.4.0-4-75-1425621.bin проблемы не наблюдаю. Если повторится, то попытаюсь приложить больше информации.
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Что это за сообщения в логе и может ли это быть связано с тем, что сетевые плееры отваливаются от медиасервера на NAS'е строго раз в полчаса?

I [Oct 24 12:00:24] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:00:24] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:00:24] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:00:25] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:00:26] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
…
I [Oct 24 12:02:24] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:312978 expired.
I [Oct 24 12:02:24] nimproxy: leaved group 239.2.0.252 succesfully.
…
I [Oct 24 12:03:07] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:03:07] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:03:07] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:03:08] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:03:20] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:05:42] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:313175 expired.
I [Oct 24 12:05:42] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:06:06] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:06:06] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:06:06] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:06:38] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:06:39] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:08:55] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:313368 expired.
I [Oct 24 12:08:55] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:09:56] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:09:56] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:09:56] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:09:56] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:09:57] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:13:15] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:313628 expired.
I [Oct 24 12:13:15] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:14:15] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:14:15] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:14:15] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:15:16] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:15:16] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:17:45] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:313898 expired.
I [Oct 24 12:17:45] nimproxy: leaved group 239.2.0.252 succesfully.
…
I [Oct 24 12:19:28] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:19:28] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:19:28] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:19:28] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:19:39] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:24:05] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:314278 expired.
I [Oct 24 12:24:05] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:25:14] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:25:14] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:25:14] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:25:15] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:25:55] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
…
I [Oct 24 12:31:25] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:314718 expired.
I [Oct 24 12:31:25] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:32:25] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:32:25] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:32:25] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:32:26] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:32:26] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
…
I [Oct 24 12:33:35] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:314848 expired.
I [Oct 24 12:33:35] nimproxy: leaved group 239.2.0.252 succesfully.
…
I [Oct 24 12:33:40] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:33:40] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:33:40] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:33:42] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:34:35] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:314908 expired.
I [Oct 24 12:34:35] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:35:35] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:35:35] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:35:35] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:36:36] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:36:39] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
…
I [Oct 24 12:40:05] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:315238 expired.
I [Oct 24 12:40:05] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:40:54] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:40:54] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:40:54] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:40:56] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:41:56] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:45:45] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:315578 expired.
I [Oct 24 12:45:45] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:46:54] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:46:54] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:46:54] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:47:44] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:48:55] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:315768 expired.
I [Oct 24 12:48:55] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:49:45] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:49:45] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:49:45] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:49:46] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:50:02] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:52:15] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:315968 expired.
I [Oct 24 12:52:15] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:53:06] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:53:06] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:53:06] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:53:06] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:54:17] nimproxy: add client 10.9.69.109 to group 239.2.0.252.
I [Oct 24 12:56:35] nimproxy: mfc entry:
                   239.2.0.252:0x00000002:joined:0.0.0.0:316228 expired.
I [Oct 24 12:56:35] nimproxy: leaved group 239.2.0.252 succesfully.
I [Oct 24 12:57:36] nimproxy: add mfc entry for 239.2.0.252.
I [Oct 24 12:57:36] nimproxy: joined group 239.2.0.252 succesfully.
I [Oct 24 12:57:36] nimproxy: add client 10.9.69.102 to group 239.2.0.252.
I [Oct 24 12:57:46] nimproxy: add client 10.9.69.105 to group 239.2.0.252.
I [Oct 24 12:58:43] nimproxy: add client 10.9.69.109 to group 239.2.0.252.

PS successfully пишется с двумя «s».

Edited by Guest
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Сообщения подправим. Перестают ли отваливаться плееры, если сделать

(config)> no service igmp-proxy

Проверил, перестали отваливаться, спасибо! Мне кажется, так быть не должно, по крайней мере, с включенным igmp-proxy на Asus RT-N66U таких отвалов не было.

Кстати, выполнение команды сопровождалось сообщениями:[spoiler=]

[i] Oct 24 17:33:16 nimproxy: deinit handler called. 
[i] Oct 24 17:33:16 nimproxy: leaved group 239.255.255.250 succesfully. 
[i] Oct 24 17:33:16 nimproxy: leaved group 239.2.0.252 succesfully. 
[i] Oct 24 17:33:16 nimproxy: leaved group 239.2.0.251 succesfully. 
[i] Oct 24 17:33:16 nimproxy: NDM IGMP/Multicast proxy stopped (exit status: 0). 
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:fc @ 224.0.0.252 for host 00:22:5f:3d:67:ec @ 10.9.69.103
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:02:00:fc @ 239.2.0.252 for host 50:32:75:63:0f:72 @ 10.9.69.105
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:02:00:fc @ 239.2.0.252 for host d8:50:e6:69:6b:b8 @ 10.9.69.108
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host d8:50:e6:69:6b:b8 @ 10.9.69.108
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:02:00:fc @ 239.2.0.252 for host e4:40:e2:d9:e4:cc @ 10.9.69.109
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:02:00:fc @ 239.2.0.252 for host e4:40:e2:d9:e6:ee @ 10.9.69.102
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 50:32:75:63:0f:72 @ 10.9.69.105
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:fc @ 224.0.0.252 for host 94:de:80:b0:2b:07 @ 10.9.69.2
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 00:90:a9:da:12:81 @ 10.9.69.3
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:fd @ 224.0.0.253 for host 94:de:80:b0:2b:07 @ 10.9.69.2
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:fd @ 224.0.0.253 for host 00:22:5f:3d:67:ec @ 10.9.69.103
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:02 @ 0.0.0.2 for host e4:40:e2:d9:e4:cc @ 10.9.69.109
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host e4:40:e2:d9:e4:cc @ 10.9.69.109
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:02 @ 0.0.0.2 for host 00:22:5f:3d:67:ec @ 10.9.69.103
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:02 @ 0.0.0.2 for host 94:de:80:b0:2b:07 @ 10.9.69.2
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host e4:40:e2:d9:e6:ee @ 10.9.69.102
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:03 @ 0.0.0.3 for host 00:22:5f:3d:67:ec @ 10.9.69.103
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 00:22:5f:3d:67:ec @ 10.9.69.103
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:03 @ 0.0.0.3 for host 94:de:80:b0:2b:07 @ 10.9.69.2
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 94:de:80:b0:2b:07 @ 10.9.69.2
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:02 @ 0.0.0.2 for host 00:90:a9:93:d7:4e @ 10.9.69.107
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:02 @ 0.0.0.2 for host 00:90:a9:76:e4:31 @ 10.9.69.101
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 00:90:a9:76:e4:31 @ 10.9.69.101
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:40:98:8f @ 239.192.152.143 for host 00:90:a9:bf:09:e6 @ 169.254.9.194
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:03 @ 0.0.0.3 for host 00:90:a9:bf:09:e6 @ 169.254.9.194
[i] Oct 24 17:33:16 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:7f:ff:fa @ 239.255.255.250 for host 00:90:a9:da:12:81 @ 0.0.0.0
[i] Oct 24 17:33:17 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:01 @ 0.0.0.1 for host 00:90:a9:93:d7:4e @ 10.9.69.107
[i] Oct 24 17:33:17 ndm: kernel: igmpsn: unmap obsoleted 01:00:5e:00:00:fb @ 224.0.0.251 for host 00:90:a9:da:12:81 @ 0.0.0.0
[i] Oct 24 17:33:17 ndm: kernel: igmpsn v4.0.2 unloaded
[i] Oct 24 17:33:17 ndm: Igmp::Proxy: IGMP proxy disabled. 

IGMP snooping на Ethernet-портах теперь отключен? Это отнюдь не праздное любопытство:

30d03e4f400a.png

В одном из портов у меня включена VoIP приставка Linksys SPA3000 с десятимегабитным интерфейсом. Без снупинга её порт может быть зафлужен мультикаст трафиком.

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