Palo Alto Firewall breaking File downloads in the middle

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Palo Alto Firewall breaking File downloads in the middle

L1 Bithead

I am facing a problem in my Network, when we try to downloads some files the firewall breaks the download in the middle some times it does not allow even 5 mb file .For large files its breaking the session and does not allow to complete the download.

All this is happening even when i bypass all policies for test purpose.

In the logs i can see tcp-rst-from-client .


Any help please.


L5 Sessionator

How do you know it's firewall? Any log entries with action block? RST from client means FW saw reset packet coming from session initiator.

L6 Presenter

Agreed with santonic. What are you trying to download? What software do you use for that or is it a web-based app?  Try to change the way you downloading (different web client or app).

You can run a PCAP from the client side or even on the FW to see these reset packets, but l think logs already says it is coming from the client?

Cyber Elite
Cyber Elite

If you have setup a rule that allows it to bypass all your security policies and didn't include any of the protection profiles then I would go out on a limb and say that it isn't  your firewall, esspeically if the traffic is getting reset from the client. Run a PCAP and make sure that the firewall is reporting things correctly but it sounds like someone is actually reseting you from whever you are trying to download these files from. 


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