The Dns Inbound Lb Add/Edit Screen - ZyXEL Communications USG40 User Manual

Table 157 Configuration > Network > DNS Inbound LB (continued)
LABEL
Query From Address
Query From Zone
Load Balancing Member This field displays the member interfaces which the ZyWALL/USG manages for load
Algorithm
Apply
Reset

19.2.1 The DNS Inbound LB Add/Edit Screen

The Add DNS Load Balancing screen allows you to add a domain name for which the ZyWALL/
USG manages load balancing between the specified interfaces. You can configure the ZyWALL/USG
to apply DNS load balancing to some specific hosts only by configuring the Query From settings.
Click Configuration > Network > Inbound LB and then the Add or Edit icon to open this
screen.
Chapter 19 DNS Inbound LB
DESCRIPTION
This field displays the source IP address of the DNS query messages to which the
ZyWALL/USG applies the DNS load balancing rule.
The ZyWALL/USG applies the DNS load balancing rule to the query messages
received from this zone.
balancing.
This field displays the load balancing method the ZyWALL/USG uses for this DNS
load balancing rule.
Weighted Round Robin - Each member interface is assigned a weight. An
interface with a larger weight gets more chances to transmit traffic than an interface
with a smaller weight. For example, if the weight ratio of wan1 and wan2 interfaces
is 2:1, the ZyWALL/USG chooses wan1 for 2 sessions' traffic and wan2 for 1
session's traffic in each round of 3 new sessions.
Least Connection - The ZyWALL/USG chooses choose a member interface which is
handling the least number of sessions.
Least Load - Outbound - The ZyWALL/USG chooses a member interface which is
handling the least amount of outgoing traffic.
Least Load - Inbound - The ZyWALL/USG chooses a member interface which is
handling the least amount of incoming traffic.
Least Load - Total - The ZyWALL/USG chooses a member interface which is
handling the least amount of outgoing and incoming traffic.
Click this button to save your changes to the ZyWALL/USG.
Click this button to return the screen to its last-saved settings.
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