Visitor III

Question

Policy lookup failed to match any policies from source interface to destination interface

Forum|Forum|3 years ago
April 13, 2023
8 replies
9421 views

Hello,

I run into issues with a "simple" policy.

Here some screenshots to explain the problem.

One policy 16 that allows all from "dial-up" to "root-vpn0". Counters going up:

Policy lookup failed for one I am sure that one should match the above one ID 16:

A route lookup that looks good to me:

Hitting 0.0.0.0/0:

Even "diagnose debug flow" looks good:

But no page displayed on the browser on client ip-address: 10.64.1.2

Did troubleshooting with an extra switch, new extra VDOM, factory-reset restore config, but no succes.

Does anyone can give me a hint to look for?

Kind regards,

Philip

FortiGate

Shilpa1

Staff

Hello Philip,

Check if the policy is enabled and in the right sequence: Ensure that the policy is enabled and in the right sequence to be matched. The policy sequence can be checked in the policy section of the GUI.

Clear the cache: Clear the cache in your web browser and refresh the page. This will ensure that the page is loaded with the latest information from the FortiGate unit.

Try a different browser: Try accessing the FortiGate GUI from a different browser. If the issue persists, try accessing it from a different machine.

Regards,

Shilpa

funkylicious

SuperUser

Hi,

Can you post the output for:

get router info routing-table details IP , for both IPs?

"jack of all trades, master of none"

philip_nlAuthor

Visitor III

Here the requested info:

FG100D-D (root) # get router info routing-table details 10.63.1.3

Routing table for VRF=0
Routing entry for 10.63.1.0/24
Known via "ospf", distance 110, metric 11, best
Last update 00:11:34 ago
* 10.77.1.5, via dial-up_0

FG100D-D (root) # get router info routing-table details 171.22.67.34

Routing table for VRF=0
Routing entry for 0.0.0.0/0
Known via "ospf", distance 110, metric 10, best
Last update 00:10:27 ago
* 10.0.199.2, via root-vpn0

Kind regards,

Philip

funkylicious

SuperUser

Very strange. Maybe it's just a visual thing in the GUI ?

Does a policy lookup from the CLI say that it doesnt match any rule ?

diag firewall iprope lookup <src_ip> <src_port> <dst_ip> <dst_port> <protocol> <Source interface>

If I understand correctly the traffic is working as expected as for the debug flow ?

"jack of all trades, master of none"

philip_nlAuthor

Visitor III

Found the problem. An upstream FortiGate had a static route.

Troubleshooting this issue, I used "Policy Lookup" on a downstream FortiGate, the FortiGate where I worked on. This one finally didn't had an issue.

But, why didn't the Policy Lookup work. Here my troubleshooting steps.

The command: diag firewall iprope lookup <src_ip> <src_port> <dst_ip> <dst_port> <protocol> <Source interface>

This one helped me.

Here a policy match for 1 lan interface and 2 dial-up interfaces. Notice the "dial-up_1" and "dial-up_0":

In the Monitor => IPsec Monitor section, there are 2 tunnels, dial-up_0 and dial-up_1:

The policies 22, 23 and 25, see above diagnose screenshot, have counters increasing:

But the Policy Lookup:

just doesn't show up interfaces dial-up_0 and dial-up_1, instead of the lan interfaces which is shown.

The CLI diag firewall iprope lookup works, the GUI simply does not for dial-up interfaces.

Above troubleshooting was on:

FortiGate 100D

v6.2.13 build1343 (GA)

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