Return-to-sender feature on the SGOS CLI

Products

• ProxySG Software - SGOS

Issue/Introduction

Return-to-sender feature on the SGOS CLI
What does the return-to-sender in the CLI do?
You want help with the return-to-sender feature

Resolution

The return-to-sender feature eliminates unnecessary network traffic when the three following conditions are met:

• The EdgeSWG (ProxySG) has connections to clients or servers on a different subnet.
• The shortest route to the clients or servers is not through the default gateway.
• There are no static routes or RIP routes defined that apply to the IP addresses of the clients and servers.

Under these conditions, if the return-to-sender feature is enabled, the EdgeSWG (ProxySG) remembers the MAC address of the last hop for a packet from the client or server and sends any responses or requests to the MAC address instead of the default gateway.

For more information about the return-to-sender feature, including the CLI syntax, please refer to #(config) return-to-sender in the CLI Reference guide.  The CLI reference guide is available at Broadcom's Technical Documentation for the supported version of SGOS running your EdgeSWG (ProxySG).