Troubleshooting Tip: Implicit SD-WAN Rule ID not showing on Session List

[adimailig]

Description	This article describes why users may find implicit SD-WAN rule IDs not missing due to changes made to the session list output.
Scope	FortiOS 7.0.4+.
Solution	If traffic hits an implicit SD-WAN Rule, it means the session was handled using standard FIB routing. For FortiOS version 7.0.3 and below, session details (diagnose system session list) will show sdwan_service_id=0. For FortiOS version 7.0.4 and above this will not show on session details. FortiOS 7.0.3. session info: proto=1 proto_state=00 duration=60 expire=3 timeout=0 flags=00000000 socktype=0 sockport=0 av_idx=0 use=3 origin-shaper= reply-shaper= per_ip_shaper= class_id=0 ha_id=0 policy_dir=0 tunnel=/ vlan_cos=0/255 state=log may_dirty f00 statistic(bytes/packets/allow_err): org=240/4/1 reply=240/4/1 tuples=2 tx speed(Bps/kbps): 0/0 rx speed(Bps/kbps): 0/0 orgin->sink: org pre->post, reply pre->post dev=5->3/3->5 gwy=10.47.15.254/192.168.10.5 hook=post dir=org act=snat 192.168.10.5:1->8.8.8.8:8(10.47.1.80:60417) hook=pre dir=reply act=dnat 8.8.8.8:60417->10.47.1.80:0(192.168.10.5:1) misc=0 policy_id=1 auth_info=0 chk_client_info=0 vd=0 serial=00000263 tos=ff/ff app_list=0 app=0 url_cat=0 sdwan_mbr_seq=1 sdwan_service_id=0     >>>>>>>> Implicit SDWAN Rule rpdb_link_id=80000000 rpdb_svc_id=0 ngfwid=n/a npu_state=0x040000 total session 1 FortiOS 7.0.4.   session info: proto=1 proto_state=00 duration=51 expire=57 timeout=0 flags=00000000 socktype=0 sockport=0 av_idx=0 use=3 origin-shaper= reply-shaper= per_ip_shaper= class_id=0 ha_id=0 policy_dir=0 tunnel=/ vlan_cos=0/255 state=log may_dirty f00 statistic(bytes/packets/allow_err): org=360/6/1 reply=360/6/1 tuples=2 tx speed(Bps/kbps): 34/0 rx speed(Bps/kbps): 34/0 orgin->sink: org pre->post, reply pre->post dev=5->3/3->5 gwy=10.47.15.254/192.168.10.5 hook=post dir=org act=snat 192.168.10.5:1->8.8.8.8:8(10.47.1.80:60417) hook=pre dir=reply act=dnat 8.8.8.8:60417->10.47.1.80:0(192.168.10.5:1) misc=0 policy_id=1 pol_uuid_idx=14727 auth_info=0 chk_client_info=0 vd=0 serial=000001f0 tos=ff/ff app_list=0 app=0 url_cat=0   >>>> No sdwan_service_id rpdb_link_id=80000000 ngfwid=n/a npu_state=00000000 total session 1