Use Case: A customer has two lines, one is a cable link and another is a DSL link. The majority of traffic goes through the cable link since it has larger bandwidth, and the rest traffic goes through the DSL link. As lots of secure websites (such as bank, or online shopping) are sensitive to flip flop the source IP address, let traffic for https, ftp, video, and game go through the cable link.
Solution: Complete the following configuration tasks:
• Configure a configurable port as the secondary WAN (WAN2). See Configure a secondary WAN.
• Connect the cable modem to the primary WAN port (WAN1) and connect the DSL modem to the secondary WAN port (WAN2).
• Enable the Weighted Dual WAN Settings and set the weighted value of WAN1 to 80% and the weighted value of WAN2 to 20%. See Dual WAN Settings.
• Enable the Policy-Based Routing feature and configure the Policy-Based Routing rules so that traffic for HTTPS, FTP, video, and game is directed to WAN1. See Configuring Policy-Based Routing.
• (Optional) Enable the Usage reports and the WAN Bandwidth reports so that you can view the network bandwidth usage. See Usage Reports, page 73 and WAN Bandwidth Reports, page 75.