SSLVPN Timeout not working - NetBios keeps session open

12/09/2022 65 People found this article helpful 400,029 Views

Description

This setting is for users being inactive but the timeout is not getting triggered. As a result, user session remained up and running.

Cause

The reason behind that is because even if the user is inactive, there may still be some NetBIOS traffic exchange between Sonicwall and the client and as a result the SonicWall does not consider that user as inactive thereby not triggering the inactivity timeout.

Resolution

Resolution for SonicOS 7.X

This release includes significant user interface changes and many new features that are different from the SonicOS 6.5 and earlier firmware. The below resolution is for customers using SonicOS 7.X firmware.

To overcome this, please follow the following steps :

1. Navigate to DEVICE | Users | Settings

2. User Sessions | Use: NetBIOS under “Don't allow traffic from these services to prevent user logout on inactivity”

NOTE: Forceful disconnect: If the SSL VPN client does not get disconnected manually from the client, but gets disconnected forcefully (may be Internet disconnection at the client end) SonicWall will not consider that user as disconnected but as an inactive user since SonicWall did not receive any disconnection request from the client. This time SonicWall will not show any NetBIOS traffic from the client as it is technically disconnected at the client side. In this scenario, the SonicWall might report "Auth Failed" in the logs due to multiple re-logings of the client. This user being an inactive user for SonicWall will still maintain the session under Users | Status and will only be disconnected once it completes its inactivity timeout, set under SSL VPN server settings.

Resolution for SonicOS 6.5

This release includes significant user interface changes and many new features that are different from the SonicOS 6.2 and earlier firmware. The below resolution is for customers using SonicOS 6.5 firmware.

To overcome this, please follow the following steps :

Navigate to Users | Settings
User Sessions | Use: NetBIOS under “Don't allow traffic from these services to prevent user logout on inactivity”

NOTE: Forceful disconnect: If the SSL VPN client does not get disconnected manually from the client, but gets disconnected forcefully (may be Internet disconnection at the client end) SonicWall will not consider that user as disconnected but as an inactive user since SonicWall did not receive any disconnection request from the client.
This time SonicWall will not show any NetBIOS traffic from the client as it is technically disconnected at the client side.
In this scenario, the SonicWall might report "Auth Failed" in the logs due to multiple re-logings of the client.
This user being an inactive user for SonicWall will still maintain the session under User | Status and will only be disconnected once it completes its inactivity timeout, set under SSL VPN server settings.

Not Finding Your Answers?

ASK THE COMMUNITY

Was This Article Helpful?

YES NO

SSLVPN Timeout not working - NetBios keeps session open

Description

Cause

Resolution

Resolution for SonicOS 7.X

Resolution for SonicOS 6.5

Related Articles

Categories

Not Finding Your Answers?

Was This Article Helpful?

Article Helpful Form

Article Not Helpful Form

Follow Us

Subscribe to newsletter

Stay In Touch