Dear All,

Please see my picture.

Is it possible to force traffic that outbound from Office1 via RB1100B, and inbound to RB1100B ?
My problem is: why some traffic that outbound from Office1 via RB1100B, inbound through RB1100C===Office1. So I have overload link between Office1 and Office2 because of those wrong traffic.

Please help me what should I do to correct my routing ?

Big Thanks in advance.

Anyone can help my issue, please ?

Look at your routing at RB1100A and see what paths are being chosen to Office A addresses. In the diagram you show the same /24 subnet for Offices A and B - is that a typo?