Creation of new Session and 6 Tuples

Reply
L4 Transporter

Creation of new Session and 6 Tuples

 

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?

 

 

Tags (2)
Community Manager

Re: Creation of new Session and 6 Tuples

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


Help the community: Like helpful comments and mark solutions
Reaper out
L4 Transporter

Re: Creation of new Session and 6 Tuples

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

 

So far i do not see it in CLI.

Community Manager

Re: Creation of new Session and 6 Tuples

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


Help the community: Like helpful comments and mark solutions
Reaper out
L4 Transporter

Re: Creation of new Session and 6 Tuples

Many Thanks Reaper

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the Live Community as a whole!

The Live Community thanks you for your participation!