Networks·41,395 discussions

Disable/Enable LAN port on WAN failover

Tags: Networking

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.

Topic

That sounds terrible.

In reply to Disable/Enable LAN port on WAN failover

It’s been a few years but doesn’t Cisco gear have a better failover system? Call them and ask them for what gear it takes.

Reply To: Disable/Enable LAN port on WAN failover

In reply to Disable/Enable LAN port on WAN failover

To disable an interface, from Fireware Web UI:

Select Network > Interfaces.

The Network Interfaces page appears.
Select the interface you want to disable. Click Edit.

The Interface Configuration page appears.
From the Interface Type drop-down list, select Disabled.
Click Save.
In the Network Interfaces page, the interface now appears as type Disabled.
To disable an interface, from Policy Manager:

Select Network > Configuration.
The Network Configuration dialog box appears.
Select the interface you want to disable. Click Configure.
The Interface Settings dialog box appears.
From the Interface Type drop-down list, select Disabled.
Click OK.

Regards,
John

[Author]

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