Creation of new Session and 6 Tuples

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Creation of new Session and 6 Tuples

Cyber Elite
Cyber Elite

 

Need to confirm below -  

 

If PA has the  active session and need create a same session but the old session is active?

What action will take depending on 6 tuples?

 

 

MP
1 ACCEPTED SOLUTION

Accepted Solutions

the sequence number is part of the TCP protocol, it increments with each packet or every window/frame. it is not visible anywhere as it continuously changes

 

there are more tcp parameters that are matched (like tcp session ID etc) but all these checks are happening at a very low level, invisble to the administrator

 

the admin's view is limited to the tuples and the PAN-OS session ID

 

 

I'm assuming you're troubleshooting 2 simultaneous sessions? if you enable packetcaptures on the source and destination, on the firewall and then also enable flow basic, you will be able to see the exact sessions as flow basic will collect all this info so you can match it to the packetcaptures

Tom Piens
Like my answer? check out my book! https://bit.ly/MasteringPAN

View solution in original post

4 REPLIES 4

L7 Applicator

a new session will start with a SYN packet, indicating this is a new session

 

once 2 (or more) identical sessions exist, packets will be identified by their tuples and sequence number

Tom Piens
Like my answer? check out my book! https://bit.ly/MasteringPAN

This sequence number is it visible in PA  GUI or cli?

 

So far i do not see it in CLI.

MP

the sequence number is part of the TCP protocol, it increments with each packet or every window/frame. it is not visible anywhere as it continuously changes

 

there are more tcp parameters that are matched (like tcp session ID etc) but all these checks are happening at a very low level, invisble to the administrator

 

the admin's view is limited to the tuples and the PAN-OS session ID

 

 

I'm assuming you're troubleshooting 2 simultaneous sessions? if you enable packetcaptures on the source and destination, on the firewall and then also enable flow basic, you will be able to see the exact sessions as flow basic will collect all this info so you can match it to the packetcaptures

Tom Piens
Like my answer? check out my book! https://bit.ly/MasteringPAN

View solution in original post

Many Thanks Reaper

MP
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