FortiProxy
FortiProxy provides enterprise-class protection against internet-borne threats and Advanced Web Content Caching
hrahuman_FTNT
Staff & Editor
Staff & Editor
Article Id 419263
Description

This article describes how to restrict only IPv4 DNS requests from FortiProxy.

Scope FortiProxy.
Solution

When the admin user selects the 'Prefer DNS Result' to 'ipv4-strict' under the Explicit Proxy setting, that will not be saved in the GUI because the 'ipv6-status' is disabled.

 

To restrict only IPv4 DNS requests from FortiProxy, 'ipv6-status' should be enabled before enabling the 'ipv4-strict'.

 

From CLI:

 

config web-proxy explicit
    edit web-proxy
        set ipv6-status enable
        set pref-dns-result ipv4-strict
    end

 

From GUI:

 

Screenshot 2025-11-17 120605.png