Disable/Enable LAN port on WAN failover - TechRepublic
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October 27, 2022 at 09:46 AM
chinyu

Disable/Enable LAN port on WAN failover

by chinyu . Updated 3 years, 6 months ago

Hi,

I am trying to get some internet redundancy using two home ISP subscriptions, each one served through different media.

Since there are no fancy routing protocols running, on WAN failover, I expect that all connections will need to be re-established, because the source IP has changed.

The machines on the LAN won’t know that a failover has happened and will try to keep an invalid connection running until the apps timeout.

I’d like to force the clients to re-establish a connection. The switch I’m using has an API I could play with. Would disabling/enabling the affected LAN ports on WAN failover be a good idea, or would it be overkill?

Also on the Wi-Fi side, I could disable/re-enable the SSID, forcing all stations to reconnect to the AP.

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