#define TNL_F_TTL_INHERIT (1 << 5) /* Inherit the TTL from the inner packet. */
#define TNL_F_PMTUD (1 << 6) /* Enable path MTU discovery. */
#define TNL_F_HDR_CACHE (1 << 7) /* Enable tunnel header caching. */
+#define TNL_F_IPSEC (1 << 8) /* Traffic is IPsec encrypted. */
/* This goes in the "config" member of struct odp_port for tunnel vports. */
struct tnl_port_config {