topic Re: Packet flow for Hardware Offload in General Topics

Packet flow for Hardware Offload

fozail — Fri, 09 Dec 2016 14:49:53 GMT

Dear Experts,

Was wondering regarding packet flow in terms of hardware offload. Is it like below or somethingelse?

Ingress Stage > Session table/flow lookup> Offloaded

Ingress Stage > Session table/flow lookup > App-ID/Content-ID inspection is done or not > offloaded

Please suggest.

Best Reagrds,

Fozail

Re: Packet flow for Hardware Offload

BPry — Fri, 09 Dec 2016 16:07:21 GMT

@fozail this link should provide you with all the session offload documentation you could possibly want.

https://live.paloaltonetworks.com/t5/Learning-Articles/Palo-Alto-Networks-Firewall-Session-Overview/ta-p/55633

Re: Packet flow for Hardware Offload

bmorris1 — Fri, 09 Dec 2016 17:46:04 GMT

Hi Fozail,

The flow is the second one you mentioned (at a high level), depending on the app it will fall to the first one i.e once the session is identified as SSL is then this gets offloaded if you're not decrypting.

Check this document, it goes into a lot of detail on the packet flow on the firewall.

https://live.paloaltonetworks.com/t5/Learning-Articles/Packet-Flow-Sequence-in-PAN-OS/ta-p/56081

hope this helps,

Ben

Re: Packet flow for Hardware Offload

fozail — Fri, 09 Dec 2016 18:04:31 GMT

Hi Ben,

I have chceked the DOC-1628, but it does not talk about FPGA. After which stage FPGA comes into picture.

As far as I understood, once application gets identified like SSL and there is no further content ispection is needed, packet will go through Ingress Stage > Session Lookup > Matched Active session > application got identified like SSL and there is no further content ispection is needed > handover the packet to FPGA.

Please correct me if I am wrong.

Best Regards,

Fozail

Re: Packet flow for Hardware Offload

MP18 — Wed, 10 Oct 2018 05:29:12 GMT

yes my understanding is also this if app is identified and no more decryption thenit is offloaded.

lets see if someone confirm this?