Hello all,
Please be advised, there is a current issue with PAN-OS 8.1 which seems to break anything SMB related, e.g. mapped network drives. Sessions have an end reason of "resources-unavailable" and go into state "Discard" in the session table.
Upon speaking with a TAC engineer, this is a known issue and they are working towards a fix.
Edit: This is now resolved in PAN-OS 8.1.1 under BugID:
PAN-94445 | Fixed an issue where Server Message Block (SMB) sessions were in a discard state with the session end reason resources-unavailable |
Thanks,
Luke.
Solved! Go to Solution.
TAC suggest to create an application override policy as workaround or downgrade to 8.0.X PANOS version.
Jacopo
PAN-94445 | Fixed an issue where Server Message Block (SMB) sessions were in a discard state with the session end reason resources-unavailable. |
TAC suggest to create an application override policy as workaround or downgrade to 8.0.X PANOS version.
Jacopo
Did you try the Application Override or did you downgrade?
Applicaton Override does the trick.
I didn't have time to mess around on Sunday when this was discovered, so we downgraded. Thankfully that went smoothly.
Thanks for the info, I was just about to deploy 8.1 to one firewall :)
Ended up doing a downgrade too, went back to 8.0.8. I so wanted the hit counter :(
Does anyone know if there is an Issue ID for this problem?
We just had a day's outage due to this issue. Palo Alto *really* should have pulled the update and warned people who have installed it.
So far I've had no issues with 8.1 och PA-220, not that much traffic passing through it though...
On a couple of PA-850 the only option was to do a downgrade, no SMB traffic worked as intended.
Could it be related to certian hardware platforms? What platforms have you experienced problems on?
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