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Wirenboard6:InstallingOnTheRemoteSite/en: различия между версиями
Wirenboard6:InstallingOnTheRemoteSite/en (просмотреть исходный код)
Версия 19:22, 27 июня 2019
, 4 года назадНовая страница: «To ensure failover of connections we need to provide for any procedure for raising and fall of the interfaces. The task is to provide communication regardless of…»
(Новая страница: «In the case of a PPP connection where there is no default gateway (for example, we have not connected an Ethernet cable), pppd will add the IP address of the ppp…») |
(Новая страница: «To ensure failover of connections we need to provide for any procedure for raising and fall of the interfaces. The task is to provide communication regardless of…») |
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In the case of a PPP connection where there is no default gateway (for example, we have not connected an Ethernet cable), pppd will add the IP address of the ppp partner as the default gateway to the routing table in the system. If a default gateway is already specified, a new default gateway is not added to the routing table. And then when the main Ethernet channel falls, the Internet connection is lost, despite the active connection. In this case, you must add a second default gateway through the ppp0 interface. The metric of any new gateway must be different from the metrics available, so we explicitly specify the metric when creating a new default gateway. | In the case of a PPP connection where there is no default gateway (for example, we have not connected an Ethernet cable), pppd will add the IP address of the ppp partner as the default gateway to the routing table in the system. If a default gateway is already specified, a new default gateway is not added to the routing table. And then when the main Ethernet channel falls, the Internet connection is lost, despite the active connection. In this case, you must add a second default gateway through the ppp0 interface. The metric of any new gateway must be different from the metrics available, so we explicitly specify the metric when creating a new default gateway. | ||
To ensure failover of connections we need to provide for any procedure for raising and fall of the interfaces. The task is to provide communication regardless of the order of raising the interfaces and switching when one of them crushes. | |||
Для интерфейса eth0, который мы будем считать основным для выхода в интернет, создается шлюз по умолчанию с метрикой 0 в таблице маршрутизации. Зададим для шлюза по умолчанию через интерфейс ppp0 метрику 100 (или любой, отличной от 0). | Для интерфейса eth0, который мы будем считать основным для выхода в интернет, создается шлюз по умолчанию с метрикой 0 в таблице маршрутизации. Зададим для шлюза по умолчанию через интерфейс ppp0 метрику 100 (или любой, отличной от 0). | ||