- Products
- Network Security
Next Generation FirewallNext-generation firewall for SMB, Enterprise, and Government
Security ServicesComprehensive security for your network security solution
Network Security ManagerModern Security Management for today’s security landscape
- Advanced Threat Protection
Capture ATPMulti-engine advanced threat detection
Capture Security applianceAdvanced Threat Protection for modern threat landscape
- Access Security
Cloud Edge Secure AccessDeploy Zero-Trust Security in minutes
Secure Mobile AccessRemote, best-in-class, secure access
Wireless Access PointsEasy to manage, fast and secure Wi-FI
SwitchesHigh-speed network switching for business connectivity
- Email Security
Email SecurityProtect against today’s advanced email threats
- Cloud Security
Cloud App SecurityVisibility and security for Cloud Apps
Cloud Firewall (NSv)Next-generation firewall capabilities in the cloud
- Endpoint Security
Capture ClientStop advanced threats and rollback the damage caused by malware
Content Filtering ClientControl access to unwanted and unsecure web content
- Product Widgets
- Product Menu Right Image
- Network Security
- Solutions
- Solutions Widgets
- Solutions Image Widgets
- Solutions Widgets
- Partners
- Partner Widgets
- Partners Image Widgets
- Partner Widgets
- Support
- Support Widget
- Support Image Widgets
- Support Widget
- Products
- Network Security
- Next Generation FirewallNext-generation firewall for SMB, Enterprise, and Government
- Security ServicesComprehensive security for your network security solution
- Network Security ManagerModern Security Management for today’s security landscape
- Advanced Threat Protection
- Capture ATPMulti-engine advanced threat detection
- Capture Security applianceAdvanced Threat Protection for modern threat landscape
- Access Security
- Cloud Edge Secure AccessDeploy Zero-Trust Security in minutes
- Secure Mobile AccessRemote, best-in-class, secure access
- Wireless Access PointsEasy to manage, fast and secure Wi-FI
- SwitchesHigh-speed network switching for business connectivity
- Email Security
- Email SecurityProtect against today’s advanced email threats
- Cloud Security
- Cloud App SecurityVisibility and security for Cloud Apps
- Cloud Firewall (NSv)Next-generation firewall capabilities in the cloud
- Endpoint Security
- Capture ClientStop advanced threats and rollback the damage caused by malware
- Content Filtering ClientControl access to unwanted and unsecure web content
- Product Widgets
- Product Menu Right Image
- Network Security
- Solutions
- Solutions Widgets
- Solutions Image Widgets
- Solutions Widgets
- Partners
- Partner Widgets
- Partners Image Widgets
- Partner Widgets
- Support
- Support Widget
- Support Image Widgets
- Support Widget
Content Filtering block page not shown correctly
03/26/2020 
51 People found this article helpful
98,380 Views
Description
The Content Filtering block page is not showed when a website is blocked, instead an error web page is shown by the browser.
The issue happens only when reaching HTTPS Websites and occurs when HTTPS Content Filtering is enabled and DPI-SSL is not implemented.
Cause
HTTPS Content Filtering is IP based, and will not inspect the URL. While HTTP content filtering can perform redirects to enforce authentication or provide a block page, HTTPS filtered pages will be silently blocked.
Resolution
This is an expected behavior if the DPI-SSL is not enabled.
The Block page always works if the traffic is HTTP while for HTTPS traffic it works only if the DPI-SSL is enabled otherwise the browser will show an error web page.
See also:
Where can I learn more about DPI-SSL? - https://www.sonicwall.com/support/knowledge-base/?sol_id=170503997881184
Which DPI-SSL migration process is best for my environment? - https://www.sonicwall.com/support/knowledge-base/?sol_id=170505555763507
How to configure Client DPI-SSL? - https://www.sonicwall.com/en-us/support/knowledge-base/?sol_id=170505885674291
Related Articles
- ‘Error sending one-time password’ encountered when connecting to NetExtender
- Supported SonicWall and 3rd party SFP and SFP+ modules that can be used with SonicWall NSsp series
- Supported SonicWall and 3rd party SFP and SFP+ modules that can be used with SonicWall NSA series
Categories
- Firewalls > TZ Series
- Firewalls > SonicWall SuperMassive E10000 Series
- Firewalls > SonicWall SuperMassive 9000 Series
- Firewalls > SonicWall NSA Series
YES
NO