Sequence number Randomization.

L2 Linker

Sequence number Randomization.

Hi Guys, 


ASA has a feature where it randomize TCP Sequence numbers to prevent hijack session. 

Does palo alto has any similar feature. 


Sorry to compare the products here. My intention is to configure similare setting in firewall. 



L7 Applicator

Re: Sequence number Randomization.

The only thing that the ASAs TCP randomization feature is doing is randomizing the client side ISN number so that it isn't sequential. I don't believe that the ISN number is sequential on the Palo Alto equipment either if I remember from past wiresharks. You might want to try getting a ticket opened and waiting for their response; we can try calling in @reaper as well, but this is more of a support case question in my mind. 

Community Team Member

Re: Sequence number Randomization.



We don't randomize/adjust sequence IDs for sessions traversing the firewall.

There is an existing feature request for this.  If you would like to add more weight to it then please ask your local SE to add your vote to this feature (FR ID 2338).


Cheers !


L2 Linker

Re: Sequence number Randomization.

Thank you. 

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!