FW_H_IPRoute

  • Article

To enable IP routing

  1. In the console tree of ISA Server Management, click General.

  2. In the details pane, click Configure IP Protection.

  3. On the IP Routing tab, select Enable IP routing

Note

To open ISA Server Management, click Start, point to All Programs, point to Microsoft ISA Server, and then click ISA Server Management.
For ISA Server 2006 Enterprise Edition, expand Microsoft Internet Security and Acceleration Server 2006, expand Arrays, expand Array_Name, expand Configuration and then click General.
For ISA Server 2006 Standard Edition, expand Microsoft Internet Security and Acceleration Server 2006, expand Server_Name, expand Configuration and then click General.

Important

Although IP routing improves performance, disabling IP routing is considered more secure. When IP routing is disabled, ISA Server sends only the data (and not the entire packet) to the destination.
When IP routing is enabled, the ports 25 and 110 are disabled, and the firewall drops internal SMTP and POP3 traffic bound for these ports.

Other Resources

ISALink_IPOptions