Внимание! В связи с борьбой со спамерами были удалены все аккаунты, не имеющие в своём активе сообщений.
Так же восстановлена работа уведомлений на почту.


Обсуждаем всё, что так или иначе связано с работой системы в качестве сервера (базы данных, почтовые и веб-сервера, файловые серверы и т.д.)
Сообщения: 1
Зарегистрирован: 02 ноя 2012, 14:11


Сообщение lelbraun » 02 ноя 2012, 15:32

Надеюсь на помощь опытных товарищей неопытному начинающими администратору.
Мне надо настроить локальную сеть, в которой два провайдера. Установлен комп c Centos 6.3 и с тремя сетевыми картами.
На карту eth1 и eth3 подключены провадеры.

Один через роутер, который автоматом сам подцепляет интернет (dhcp) - интерфейс eth1.
файл /etc/sysconfig/network-scripts/ifcfg-eth1:

Второй провайдер подключен на eth3 через PPPoE. Не знаю где посмотреть конфигарационный файл. Настройки были установленны через nm-connection-editor (где указан логин, пароль, мак-адрес сетевой карты "CC:B2:55:61:52:69" и параметры для IPv4: "автоматически, только адрес PPPoE" и DNS)
оба подключения работают нормально, пинг идет (включали и поочередно, и совместно), интернет работает.

настраиваю карту для локальной сети на eth0 (устанавливаю ip вручную), включаю eth0 и пинг теряется.
файл /etc/sysconfig/network-scripts/ifcfg-eth0:

eth0 Link encap:Ethernet HWaddr BC:AE:C5:5D:16:C9
inet addr: Bcast: Mask:
inet6 addr: fe80::beae:c5ff:fe5d:16c9/64 Scope:Link
RX packets:47456 errors:0 dropped:0 overruns:0 frame:0
TX packets:2790 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3636891 (3.4 MiB) TX bytes:326354 (318.7 KiB)
Interrupt:25 Base address:0x4000

eth1 Link encap:Ethernet HWaddr 00:19:5B:89:81:96
inet addr: Bcast: Mask:
inet6 addr: fe80::219:5bff:fe89:8196/64 Scope:Link
RX packets:61216 errors:0 dropped:0 overruns:0 frame:0
TX packets:48931 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:35893939 (34.2 MiB) TX bytes:29752365 (28.3 MiB)
Interrupt:20 Base address:0x8c00

eth3 Link encap:Ethernet HWaddr CC:B2:55:61:52:69
inet6 addr: fe80::ceb2:55ff:fe61:5269/64 Scope:Link
RX packets:37479 errors:0 dropped:0 overruns:0 frame:0
TX packets:37935 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22438963 (21.3 MiB) TX bytes:16453931 (15.6 MiB)
Interrupt:21 Base address:0xe800

lo Link encap:Local Loopback
inet addr: Mask:
inet6 addr: ::1/128 Scope:Host
RX packets:5874 errors:0 dropped:0 overruns:0 frame:0
TX packets:5874 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:518612 (506.4 KiB) TX bytes:518612 (506.4 KiB)

ppp0 Link encap:Point-to-Point Protocol
inet addr: P-t-P: Mask:
RX packets:3 errors:0 dropped:0 overruns:0 frame:0
TX packets:3 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:54 (54.0 b) TX bytes:54 (54.0 b)

#route -n (без включеного соединения eth0, работают оба провайдера)
route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface UH 0 0 0 ppp0 U 1 0 0 eth1 UG 0 0 0 eth1

#route -n (тоже плюс eth0)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface UH 0 0 0 ppp0 UH 0 0 0 eth0 U 1 0 0 eth1 U 1 0 0 eth0 UG 0 0 0 eth0

Помогите, понять почему перестает работать пинг (интернет) при включенной eth0.
И еще, пожалуйста, помогите настроить мрашрутизацию. Хочется хотябы научиться посылать пакеты с eth0 на eth1.

#route -n (ответ когда включена только одна сеть eth1)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface U 1 0 0 eth1 UG 0 0 0 eth1

Сообщения: 31
Зарегистрирован: 07 мар 2018, 08:51

Re: Маршрутизация

Сообщение Businesswork » 07 мар 2018, 09:05

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