Incomplete Application

L3 Networker

Re: Incomplete Application

and the answer was...?

L7 Applicator

Re: Incomplete Application

From the screenshot it looks like the session itself initiated on an accepted rule but no return traffic (0 bytes received) was ever seen.

this could be due to the server not responding or an asymmetric route sending the return packets over a different path.

The traffic is allowed as the syn packet hit a policy that allowed it to go out based on it's source/destination zones and port, but the session never completed appid so app based security policy could not be applied

if there was return traffic but we failed to properly identify the application the application would be set to "unknown-tcp" rather than incomplete.

For unknown-tcp we can apply policy based on application (so if you only have a web-browsing allow, unknown-tcp would be blocked as it is not an allowed application in your security policy)

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!