topic Re: Shadow Rule Notice - Really Not a Shadow in General Topics

Shadow Rule Notice - Really Not a Shadow

jeff6strings — Fri, 10 Jul 2020 20:43:24 GMT

I have a firewall (lab unit) with version 9.1 and I configured two Security Policy Rules.

The top rule (1) is Trust to Untrust, a source user is a group, all default options, and an Action of Deny.

The second rule (2) is Trust to Untrust, a source user is a group (different from above), all default options, and an Action of Allow.

When I commit the changes I receive a Rule Shadow warning stating rule 1 is shadowing rule 2. The commit succeeds but although both rules are the same, except for Deny and Allow, each is only different by the Source User and I would have thought it would know that. I assume this logic is not included in Shadow checks?

Thanks for any insight.

Jeff

Re: Shadow Rule Notice - Really Not a Shadow

slp-security — Sat, 11 Jul 2020 11:14:27 GMT

Hi,

I also noticed this behaviour with 9.0.9 (maybe other)...

Regards,

Re: Shadow Rule Notice - Really Not a Shadow

BPry — Sun, 12 Jul 2020 02:49:52 GMT

@jeff6strings,

This is expected logic in the configuration validation, and while 9.1 made it better you won't see any major improvements until you get to utilize 10.0 in production. Thankfully PAN is finally taking notice that this is super annoying and can lead to admins missing more critical things when they essentially get trained to ignore commit warnings.

Re: Shadow Rule Notice - Really Not a Shadow

jeff6strings — Thu, 16 Jul 2020 14:13:48 GMT

Thank you for all the responses and hopefully, this is addressed in the coming versions.

Jeff