+ if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip4_header_set_dscp (ip4, ip4_header_get_dscp (ip4 + 1));
+ if (t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ ip4_header_set_ecn (ip4, ip4_header_get_ecn (ip4 + 1));
+ if ((t->flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
+ ip4_header_get_df (ip4 + 1))
+ ip4_header_set_df (ip4);