In fail-to-block (or disconnect) mode, the appliance shuts down both LAN and WAN interfaces during a failure, blocking traffic. This forces traffic to be rerouted to other paths if other SteelHeads are deployed.

This mode is useful if your network can automatically reroute traffic when the appliance blocks it. You can use this mode with connection-forwarding, the allow-failure command, and another SteelHead on a different path to ensure redundancy.

You set fail-to-block mode using the SteelHead CLI.