You can specify how the Lookout proxy should handle unsupported TLS, unsupported Port 80/443 protocols, and QUIC protocol. You can also enable or disable Domain Name System (DNS) resolution by the Lookout proxy when traffic is steered from non-PAC file deployment (for instance, traffic coming from an SD-WAN edge at a branch office location).

Select Administration > System Settings > Advanced Configuration and click the Policy Settings tab to configure protocol support and DNS resolution options.