SEP FW not Proxy aware, what about custom IPS

Hi,

i know the SEP FW is not proxy aware:

https://support.symantec.com/en_US/article.TECH235...

i wonder now if the same goes for the custom IPS and a proxy.

Is it somehow possible to block access to websites over the custom IPS when there is a proxy set in the browsersettings?

i know the best way to block access to the websites would be at the proxy, but this is not the point right now :)