This topic discusses considerations when installing the Security Agent to dual-stack or pure IPv6 clients.
Operating System
The Security Agent can only be installed on the following operating systems that support IPv6 addressing:
- Windows SBS 2011 
- 
Windows 10 (all editions) 
- Windows Server 2012/2012 R2 (all editions) 
- 
                    Windows Server 2016 (Standard, Datacenter, Essentials) 
- 
                    Windows Server 2019 (Standard, Datacenter, Essentials) 
Visit the following website for a complete list of system requirements:
http://docs.trendmicro.com/en-us/smb/worry-free-business-security.aspx
Supported Installation Methods
All of the available installation methods can be used to install the Security Agent on pure IPv6 or dual-stack clients. For some installation methods, there are special requirements to install the Security Agent successfully.
| Installation Method | Requirements/Considerations | 
|---|---|
| Internal Web Page and Email Notification Install | If you are installing to a pure IPv6 client, the Security Server must be dual-stack or pure IPv6 and its host name or IPv6 address must be part of the URL. For dual-stack clients, the IPv6 address that displays in the installation status screen depends on the option selected in the Preferred IP Address section in tab. | 
| Vulnerability Scanner and Remote Install | A pure IPv6 Security Server cannot install the Security Agent on pure IPv4 clients. Similarly, a pure IPv4 Security Server cannot install the agent on pure IPv6 clients. | 
Security Agent IP Addresses
A Security Server installed in an environment that supports IPv6 addressing can manage the following Security Agents:
- A Security Server installed on a pure IPv6 client can manage pure IPv6 Security Agents. 
- A Security Server installed on a dual-stack client and has been assigned both IPv4 and IPv6 addresses can manage pure IPv6, dual-stack, and pure IPv4 Security Agents. 
After you install or upgrade Security Agents, the agents register to the Security Server using an IP address.
- Pure IPv6 Security Agents register using their IPv6 address. 
- Pure IPv4 Security Agents register using their IPv4 address. 
- Dual-stack Security Agents register using either their IPv4 or IPv6 address. You can choose the IP address that these agents will use in the Preferred IP Address section in tab. 
 
		