ZyXEL – USG Application Notes
11
routes for VoIP traffic and HTTP traffic.
(1) Add a policy route for VoIP traffic:
Source: LAN1_subnet
Destination: Any
Service: SIP
Next Hop: select the newly created WAN trunk WAN_Trunk_VoIP
Please note that to make sure this policy route applies to all VoIP traffic,
including both the SIP signaling and RTP (voice data), we need to enable SIP ALG.
Go to Configuration > Network > ALG, enable SIP ALG.
(2) Add a policy route for HTTP traffic:
Source: LAN1_subnet
Destination: Any
Service: HTTP
Next Hop: Select the newly created WAN trunk WAN_Trunk_HTTP.