+static void
+create_bypass_for_fwd(snat_main_t * sm, ip4_header_t * ip)
+{
+ nat_ed_ses_key_t key;
+ clib_bihash_kv_16_8_t kv;
+ udp_header_t *udp;
+
+ if (ip->protocol == IP_PROTOCOL_ICMP)
+ {
+ if (icmp_get_ed_key (ip, &key))
+ return;
+ }
+ else if (ip->protocol == IP_PROTOCOL_UDP || ip->protocol == IP_PROTOCOL_TCP)
+ {
+ udp = ip4_next_header(ip);
+ key.r_addr = ip->src_address;
+ key.l_addr = ip->dst_address;
+ key.proto = ip->protocol;
+ key.l_port = udp->dst_port;
+ key.r_port = udp->src_port;
+ }
+ else
+ {
+ key.r_addr = ip->src_address;
+ key.l_addr = ip->dst_address;
+ key.proto = ip->protocol;
+ key.l_port = key.r_port = 0;
+ }
+ key.fib_index = 0;
+ kv.key[0] = key.as_u64[0];
+ kv.key[1] = key.as_u64[1];
+ kv.value = ~0ULL;
+
+ if (clib_bihash_add_del_16_8 (&sm->in2out_ed, &kv, 1))
+ clib_warning ("in2out_ed key add failed");
+}
+