You can configure keepalives with the keepalive command, and optionally with its new extension. The GRE keepalive feature enables the keepalive interface command for tunnels, and allows you to configure keepalives for point-to-point GRE tunnels. Conventionsįor more information on document conventions, refer to the Cisco Technical Tips Conventions. If your network is live, make sure that you understand the potential impact of any command.
All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. The information in this document is based on these software and hardware versions:Ĭisco IOS® Software that supports GRE over IPSec
Readers of this document should have knowledge of these topics: This document provides an overview of how Generic Routing Encapsulation (GRE) keepalives work.
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