HotBrick VPN 800 / 2 User Manual
Page 10
How to set up VPN Failover on the LB-2 VPN or VPN 800/2
Property of HotBrick — 2005
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In this scenario the time it took the product to backup the traffic using the second VPN
(WAN2_WAN2) varied from 1 second to about 5 seconds. This value may vary for a number of
reasons including your connection, your local network configuration, and your desktop configuration.
Plug the WAN1 connection again.
The first VPN tunnel should start working again and the traffic should use it. Note that after the
connection has been re-established for a few seconds, the WAN1 LED will start to blink and WAN2
will stop blinking.
The second scenario (Image 10 – Scenario II) is when you’re on the other side of the failed
connection, which means that you local connection is fine, but the remote site isn’t. The cause of
both failures could be broken links or just an unstable route. What’s important is that for some
reason, that tunnel is not available anymore.
Image 10: The WAN1 connection of the remote gateway crashes and the traffic routes through the second VPN.
Go to the HotBrick product and pull the WAN1 connection (unplug it) of the REMOTE SITE.
The ping –t command will fail.
This second scenario, where your local connections are up and running, is the worst (slowest)
case. It means that the traffic redirection could take up to 2 minutes to take place.