9 "IPIP_TUNNEL_API_FLAG_NONE",
13 "IPIP_TUNNEL_API_FLAG_ENCAP_COPY_DF",
17 "IPIP_TUNNEL_API_FLAG_ENCAP_SET_DF",
21 "IPIP_TUNNEL_API_FLAG_ENCAP_COPY_DSCP",
25 "IPIP_TUNNEL_API_FLAG_ENCAP_COPY_ECN",
29 "IPIP_TUNNEL_API_FLAG_DECAP_COPY_ECN",
40 "vl_api_version": "0xa2a8fa8d"