FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
acevik
Staff
Staff
Article Id 404058
Description This article describes a possible failure reason for inter-VDOM connections.
Scope FortiGate.
Solution

In some cases, traffic fails to pass through the inter-VDOM links, and the Debug flows show a correct route match, but there is no policy match, and the egress packet looks like the following in the ingress VDOM:

 

2023-04-03 12:10:33 id=20085 trace_id=50042 func=print_pkt_detail line=5845 msg="vd-VDOM_TRM:0 received a packet(proto=1, 192.168.252.1:5376->10.71.2.239:2048) tun_id=0.0.0.0 from vdl1-TRM_INT. type=8, code=0, id=5376, seq=0."
2023-04-03 12:10:33 id=20085 trace_id=50042 func=init_ip_session_common line=6024 msg="allocate a new session-003bc6ae, tun_id=0.0.0.0"
2023-04-03 12:10:33 id=20085 trace_id=50042 func=vf_ip_route_input_common line=2605 msg="find a route: flag=04000000 gw-10.71.2.239 via Red5.571"

 

One possible reason is that VDOM itself is disabled in the system settings.

 

To confirm the status of the VDOM, review the following entry

 

config vdom
    edit <VDOM>
        config system settings

        "show full"           

            set status <enable/disable>  <-----

 

Related documents:

Debugging the packet flow

config system settings