/* Per RFC4301 5.1.2.1 */
outip6->ip6_flow = htonl(IP6_VERSION << 28 | ds_ecn << 20);
- outip6->ip6_plen = htons(rte_pktmbuf_data_len(m));
+ outip6->ip6_plen = htons(rte_pktmbuf_data_len(m) -
+ sizeof(struct ip6_hdr));
outip6->ip6_nxt = IPPROTO_ESP;
outip6->ip6_hops = IPDEFTTL;