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X-Forwarded-For Header showing IPv6 Addresses

 

Information

 

Summary:

X-Forwarded-For Header showing IPv6 Addresses

Environment:

Product: LoadMaster

Version: Any

Platform: Any

Application: HTTP/HTTPS

Question/Problem Description:

The X-Forwarded-For header is showing IPv6 addresses, but only IPv4 addresses should be seen.

Steps to Reproduce:  
Error Message:  
Defect Number:  
Enhancement Number:  
Cause: Somewhere upstream is injecting an IPv6 address into the X-Forwarded-For header so it already exists when it reaches the LoadMaster.
Resolution:

Create a content rule with the following parameters:

Rule Type:  Replace Header
Header Field:  X-Forwarded-For
Match String:  /.*,\s+(.*)/
Value of Header Field to be replaced:  \1

Apply this as a request rule into the virtual service.

Workaround:  
Notes:

https://support.kemptechnologies.com/hc/en-us/articles/7170469507341-Content-Rules


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