There is a check box called Subnet Originating Requests in System Configuration > Miscellaneous Options > Network Options. When transparency is turned off for a Virtual Service, the source IP address of the connections to the Real Servers is the Virtual Service. When the Subnet Originating Requests check box is selected, the source IP address will look like the local interface address on the Real Server’s subnet.

Depending on transparency and SOR, the Real Server may see traffic originating from a different IP address.

Transparency

Subnet Originating Requests

Real Server sees

Disabled

Disabled

VS address

Disabled

Enabled

LoadMaster Real Server-side interface address

Enabled

Disabled

Client IP address

Enabled

Enabled

Client IP address

Transparency takes precedence over SOR. If transparency is enabled, SOR is not used and does not have any effect on the routing of traffic.