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their computers for 5 minutes.
Select any in the IP Address field and WAN in the Zone field to apply this rule for all DNS query
messages the WAN zone receives.
Select Least Load - Total as the load balancing algorithm.
Click Add to add WAN1 and WAN2 as the member interfaces. Click OK.
Continue to go to the Configuration > Firewall and Configuration > Network > NAT screens to
configure the corresponding firewall rules and NAT virtual server for the inbound service access.
4.5.1 What Can Go Wrong?
• Using a greater TTL value makes DNS inbound load balancing become ineffective, although it can
reduce the USG’s loading as the DNS request senders does not need to send new queries to the
USG that often.
• If you choose Custom in the Load Balancing Member screen and enter another IP address for a
member interface, make sure the entered IP address is configured in the corresponding firewall and
NAT virtual server rules.
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