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Enabling WAF Blocks all traffic

 

Information

 

Summary:

Enabling WAF on a virtual service causes all traffic to be blocked, even with all rules disabled.

Environment:

Product: LoadMaster

Version: Any

Platform: Any

Application: Any HTTP/HTTPS

Question/Problem Description:

With WAF enabled users cannot connect to the web service. Users receive a browser error regarding the web server sending an EMPTY RESPONSE.

Steps to Reproduce: Enable WAF while the /var/log filesystem is full.
Error Message: wafd: epoll_wait failed 9
Defect Number: LM-1426
Enhancement Number:  
Cause: A full filesystem causes WAF to not function properly.
Resolution: Rebooting the device resolves the issue.
Workaround: Disable WAF on the Virtual Service.
Notes:  

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