D-Link DSA-3600, User Manual

Page: 26 / 204

Chapter 4. Web Interface Configuration
20
y
Enable WAN Failover:
The purpose of WAN Failover is to have a backup link for WAN1 when WAN2 is
available. Check the check box of Enable WAN Failover to active the WAN failover function of the DSA-3600.
Normally a service zone uses WAN1 as it primary gateway. When WAN Failover is enabled, WAN1's traffic will
be routed to WAN2 when WAN1 connection is down. On the other hand, a service zone’s policy can also use
WAN2 as its gateway; in that case, if WAN2 is down, the WAN2's traffic under its policy also will be routed to
WAN1.
¾
Fall back to WAN1 when WAN1 is available again:
If
WAN Failover
is enabled, the traffic will be routed to
WAN2 automatically when WAN1 connection fails. A
Fall back to WAN1 when WAN1 is available again
function will appear when Enable WAN Failover check box is checked. If
Fall back to WAN1 when WAN1 is
available again
function is enabled, the routed traffic will be back to WAN1 when WAN1 connection is
recovered.
y
Warning of Internet Disconnection:
An Internet disconnection detection feature is supported by the system.
Check the check box of
Warning of Internet Disconnection
will enable this function. There is a text box
available for the administrator to enter a reminding message. This reminding message will appear on clients'
screens when Internet connection is down.
Note: SIP authentication is exempt from Load Balancing and WAN Failover. A fixed WAN port is chosen for SIP
traffic.