WAN-to-WAN forwarding 编辑

Enabling WAN-to-WAN forwarding on the MCN, allows the MCN to advertise remote site routes.

• Clients are aware of MCN local routes and other client site routes
• From client perspective, all routes are considered as MCN routes

When WAN-to-WAN forwarding is not enabled on the MCN, Branch to Branch communication issues are encountered in the customer network.

Appliances running in client mode are unaware of other branches subnets until WAN-to-WAN forwarding is enabled on the MCN. Enabling this option makes the branch SD-WAN nodes aware of other branch subnets. The traffic destined to other branches is forwarded to MCN. MCN routes it to the correct destination.

WAN-to-WAN Forwarding Groups

The WAN-to-WAN Forwarding Group is used to allow client sites to communicate through an intermediary site with each other.

In previous releases, only a single WAN-to-WAN forwarding group was allowed. In current releases, this number is unrestricted. When enabled the routing tables are shared between the site with WAN-to-WAN forwarding enabled and all client site in the specific WAN-to-WAN group. Also, when using Dynamic Virtual Paths WAN-to-WAN forwarding must be enabled. By default, all sites are in a default WAN-to-WAN forwarding group.