topic Re: intrazone default in Next-Generation Firewall Discussions

intrazone default

Martin2K — Thu, 21 Sep 2023 23:17:11 GMT

Hello,

I am observing that tcp connection between two hosts remaining in the same zone are not able to establish TCP connections [htts], while ICMP is successful. Tracing the traffic it shows up as application incomplete, rule intrazone default is hit.

Therefore, I was wondering whether TCP traffic within intrazone traffic is allowed.

I would appreciate any advice.

Thanks,

Re: intrazone default

PavelK — Fri, 22 Sep 2023 01:46:32 GMT

Hello @Martin2K

the intrazone-default has action allow by default. The application incomplete indicates that either server did not reply or there was not enough traffic to recognize the application. Here is KB for reference: Not-Applicable, Incomplete, Insufficient Data in the Application Field. To drill down into details, could you check logs from Monitor > Logs > Traffic, then search the log and click on magnifying glass on left side, then navigate to Details and check Bytes Sent & Bytes Received. If there is no Bytes Received this would indicate no response from server.

Kind Regards

Pavel

Re: intrazone default

Martin2K — Fri, 22 Sep 2023 17:50:47 GMT

Thank you Pavel.

I drilled deeper and packets are transferred.

Application: incomplete

Rule: intrazone-default

Session End Reason: aged-out

Re: intrazone default

PavelK — Fri, 22 Sep 2023 23:49:57 GMT

Hello @Martin2K

thank you for reply.

The application incomplete is expected in this case, there is no return traffic (Packet Received is 0):

As next, I would be looking into why there is no response. If you have access to server, I would check server side.

Kind Regards

Pavel