Help in configuring the proxy

Hi guys! Need help in configuring the proxy. There are two virtual networks on one of the network cards. Look both in the local network. For example / 24 and / 24. I can choose between the blue and green areas. In the settings section netnserver proxy selection mode only proxies for established networks. The question is - is it possible to enable the proxy only on the same network? Is it possible to do so?