In order to facilitate integration with Third
Party services and devices such as cloud security and traditional
routers, Prisma SD-WAN now supports Generic Routing Encapsulation
(GRE) tunnels from branch or data center sites to Third Party endpoints. Limitations/Caveats Prisma SD-WAN Data Center devices support Third Party GRE
Tunnels, but do not support associating a Third Party endpoint to
this interface. This implies that liveliness probes are available,
and therefore, it is highly recommended to enable GRE keepalives. NAT performed between the local and remote endpoints of the
GRE Tunnel may disrupt the use of GRE keepalives.
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