ZyXEL Communications ZyWALL USG 2000 Manual do Utilizador descarregar pdf (Página 19)

ZyXEL – ZyWALL USG Support Notes

Step 3. Go to CONFIGURATION > Network > Routing > Policy Route, add

policy routes for VoIP traffic and HTTP traffic.

a. 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.

Step 3. For all other traffic, we use the two WAN connections to perform load

balancing. Go to Network > WAN > General.

Choose Active/Active Mode.

Set the Load Balancing Algorithm to Least Load First.

To avoid the situation where traffic from the same LAN host may be sent over

different WAN interfaces, which may cause servers to refuse the connection due

to a different source IP, we enable and set “WAN Interface to Local Host

Mapping Timeout” to a specific time period.

For Load Balancing Index (es), we choose Outbound Only.

Set the available outbound bandwidth for the two WAN connections according

to the bandwidth obtained from each ISP.

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ZyXEL Communications ZyWALL USG 2000 Manual do Utilizador Página 19