ZyXEL Communications ZyWALL USG Series Application Notes page 11

Step 2. Go to CONFIGURATION > Network > Interface > Trunk. Add WAN Trunks.
(1) Add WAN trunk for VoIP traffic — Set WAN1 as Active mode, while setting
WAN2_ppp as Passive mode.
(2) Add WAN trunk for HTTP traffic — Set WAN2_ppp as Active mode, while
setting WAN1 as Passive mode.
(3) Use SYSTEM_DEFAULT_WAN_TRUNK to perform load balancing for all other
traffic.
Step 3. Go to CONFIGURATION > Network > Routing > Policy Route, add policy
ZyXEL – USG Application Notes
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