SecurityGateway will automatically detect the level of IPv6 capability that your OS supports and dual-stack where possible; otherwise, SecurityGateway will monitor both networks independently.
Configuration
...accept only IPv4 connections
Choose this option if you only wish to accept IPv4 connections.
...accept only IPv6 connections
Choose this option if you only wish to accept IPv6 connections.
...accept either IPv4 or IPv6 connections
Choose this option if you wish to accept both IPv4 and IPv6 connections. This is the default setting, and SecurityGateway will give precedence to IPv6 connections over IPv4 whenever possible.
Connect to outbound IPv6 hosts where possible
Enable this option if you want SecurityGateway to connect to outbound IPv6 hosts whenever possible.
