Chapter 18 DNS Inbound LB
ZyWALL ATP Series User’s Guide
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18.2.1 The DNS Inbound LB Add/Edit Screen
The
Add DNS Load Balancing
screen allows you to add a domain name for which the Zyxel Device
manages load balancing between the specified interfaces. You can configure the Zyxel Device 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.
Query From Address
This field displays the source IP address of the DNS query messages to which the Zyxel
Device applies the DNS load balancing rule.
Query From Zone
The Zyxel Device applies the DNS load balancing rule to the query messages received
from this zone.
Load Balancing
Member
This field displays the member interfaces which the Zyxel Device manages for load
balancing.
Algorithm
This field displays the load balancing method the Zyxel Device 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 Zyxel
Device chooses wan1 for 2 sessions’ traffic and wan2 for 1 session’s traffic in each round
of 3 new sessions.
Least Connection
- The Zyxel Device chooses choose a member interface which is
handling the least number of sessions.
Least Load - Outbound
- The Zyxel Device chooses a member interface which is
handling the least amount of outgoing traffic.
Least Load - Inbound
- The Zyxel Device chooses a member interface which is handling
the least amount of incoming traffic.
Least Load - Total
- The Zyxel Device chooses a member interface which is handling the
least amount of outgoing and incoming traffic.
Apply
Click this button to save your changes to the Zyxel Device.
Reset
Click this button to return the screen to its last-saved settings.
Table 150 Configuration > Network > DNS Inbound LB (continued)
LABEL
DESCRIPTION