Test The Result; What Can Go Wrong; How To Configure Dns Inbound Load Balancing To Balance Dns Queries Among Interfaces - ZyXEL Communications ZyWALL 110 Handbook

Figure 665 CONFIGURATION > Interface > Trunk > Default WAN Trunk

7.3.4 Test the Result

Browse any website to test the result.
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The Weighted Round Robin (WRR) algorithm is best suited for situations where the bandwidths set
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for the two WAN interfaces are different. An interface with a larger weight (WAN1) gets more
chances to transmit traffic than an interface with a smaller weight (WAN2).
Figure 666 MONITOR > Interface Summary > Interface Statistics

7.3.5 What Can Go Wrong?

If there is no traffic passing through either WAN1 or WAN2 interfaces, check that the Mode of both
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WAN1 & WAN2 should be Active. If a trunk is in Passive mode, the ZyWALL/USG will use this
connection only when all of the connections set to Active mode are down.
7.4 How to Configure DNS Inbound Load Balancing to
balance DNS Queries Among Interfaces
This is an example of using the ZyWALL/USG dynamically responding to DNS query messages with
its least loaded interface's IP address. The DNS query senders will then transmit packets to that
interface instead of an interface that has a heavy load. This example assumes that your company's
domain name is www.example.com. You want your ZyWALL/USG's WAN1 (202.1.2.3) and WAN2
(202.5.6.7) to use DNS inbound load balancing to balance traffic loading coming from the Internet.
Chapter 7 Manage Your Network Traffic
ZyWALL/USG Series User's Guide
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