2.3 Application Scenario
The company has two WAN connections for sharing outbound internet traffic. WAN1 uses static IP, and WAN2 uses a PPPoE connection. Since WAN1 ISP is
also the company’s VoIP provider, the network administrator wants VoIP traffic primarily sent out over WAN1. In case WAN1 is down, the VoIP traffic can still
go out over WAN2 PPPoE connection. Network administrator also wants HTTP traffic sent over WAN2 PPPoE connection primarily. In case WAN2 PPPoE is
down, LAN users can still surf internet over WAN1. For all other types of traffic, administrator needs the two WAN connections to share the outbound traffic
load, performing load balancing.
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